Terrain Soil And Waste Product Guide

User Manual: Soil and Waste Product Guide

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JANUARY 2008

Terrain Soil and Waste
Product Guide

Introduction
Having pioneered the development of solvent-welded systems, Terrain soil and
waste products represent the industry benchmark for quality, installation
flexibility and product innovation backed by the highest levels of customer
service.
Terrain systems include an extensive range of soil and waste drainage products
for commercial, industrial, housing and public sector developments, all built on
the strength of our Terrain brand.
Systems include solvent-welded and push-fit options for both soil and waste
drainage; overflow and trap systems; and a comprehensive range of adaptors
and accessories. Products are available in a range of colours.
■ Industry leading range of solvent and push-fit soil and waste solutions.
■ Unique products offer unrivalled installation options.
■ High quality finish colour matched to Terrain rainwater systems.
■ Suitable for commercial and domestic installations.

100-Solvent

Terrain Soil System

82, 110 and 160mm PVC-u soil pipes and fittings
■ Wide range of bends, branches and access fittings to meet all application
requirements
■ BBA certified Air Admittance Valve

100P-PushFit

Terrain Soil System

82, 110 and 160mm PVC-u soil pipes and fittings for push-fit jointing
■ Saves time and labour costs
■ Also for use with Terrain roof outlets for rainwater drainage

200-Solvent

Terrain Waste System

Solvent-welded MuPVC system
■ 32, 40 and 50mm integrated systems
■ Wide range of bends and adaptors
■ Integrated floor gullies

300-PushFit

Terrain Waste System

Push-fit polypropylene system
■ 32, 40 and 50mm integrated systems
■ Quick and easy to install
■ Saves time and labour costs
■ Resistant to most oils, bleaches and detergents
■ Wide range of bends and fittings

500-Over flow

Terrain Overflow System

Solvent-welded PVC-u system for cold, non-pressure water
■ 19mm PVC-u pipe and fittings
■ Range of tank connectors

600-Traps

Terrain Traps

Polypropylene traps
■ 32, 40 and 50mm polypropylene traps
■ Range includes telescopic and self resealing bottle traps
■ All traps have universal compression outlets which, in addition to all
Terrain waste pipes, will accept: other MuPVC waste pipe

Contents

■

RANGE INTRODUCTION

■

TERRAIN SOIL SYSTEMS

■

■

■

100 Solvent-Weld
100P Push-Fit

4-15
16-20

200 Solvent-Weld
300 Push-Fit

21-27
21-26
27-28

500 system

29-30
29-30

600 system

31-32
31-32

TERRAIN WASTE SYSTEMS

TERRAIN OVERFLOW SYSTEM

TERRAIN TRAPS

■

ACCESSORIES/ANCILLARIES

33-34

■

SYSTEM PLANNING

35-37
35
36-37
38-39
40

Design considerations
Special fabrication service
Design data
Socket dimensions

Technical advisory service &
quality details

41

Products marked  in the
product listings are available
in CAD form for ready
incorporation into design
drawings. If you’d like a disk
or CD ROM in the appropriate
format, simply contact the
Technical Advisory Service.
3

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

SOIL PIPE

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Plain ended.
size(mm)

L

T

Code

Col

Pk/St

100.3.30
100.3.40
100.4.30
100.4.40
100.6.30
100.6.40

GBW
GBW
GBWR
GBWR
G
G

2/88
2/88
2/48
2/48
1/33
1/33

Code

Col

Pk/bx

109.3
109.4
109.6

GB
GBWR
G

5/120 £3.91
5/180 £3.82
5/60 £10.29

Code

Col

Pk/bx

110.3
110.4
110.6

GBW
GBWR
G

5/85
5/60
–/6

Code

Col

Pk/bx

111.3
111.4
111.6

GBW
GBW
G

5/65
–/10
–/3

Code

Col

Pk/bx

111.S.3
111.S.4
111.S.6

G
GB
G

5/30
5/20
–/5

Code

Col

Pk/bx

101.3.92
101.4.92
101.6.92
101.4.104
101.4.112
101.3.135
101.4.135
101.6.135

GBW
GBWR
G
G
GB
GBW
GBWR
G

5/40
–/10
–/2
5/20
5/20
5/50
5/30
–/4

(min)

*
*
*
*
*
*

L

82
82
110
110
160
160

3m
4m
3m
4m
3m
4m

3.2
3.2
3.2
3.2
3.3
3.3

£10.87
£10.87
£11.07
£11.07
£28.70
£28.70





£34.78
£46.38
£35.45
£47.24
£91.87
£122.49

T

RING SEAL ADAPTOR

Converts any Terrain solvent socket to a ring seal
expansion socket.

A

STRAIGHT COUPLER
DOUBLE SOCKET

size(mm)

A

82
110
160

21
21
26

Double solvent socket.

L

*
*
*

Z

EXPANSION COUPLER

size(mm)

L

Z

82
110
160

92
102
160

3
3
8





£6.15
£7.69
£22.17

To allow expansion in longer pipe runs.

L

Z

SLIP COUPLER

*
*
*

size(mm)

L

Z

82
110
160

113
123
210

3
3
8





£9.20
£9.40
£28.31

Double ring seal socket.

*
*
*

L

SWEPT BEND
DOUBLE SOCKET

size(mm)

L

82
110
160

134
144
210





£19.11
£23.93
£61.27

(82mm) 921/2° and 135° as standard.
(110mm) 921/2°, 104°, 1121/2° and 135° as standard.
size(mm) angle°
Z2

Z1

4





*£ per metre is for estimating purposes only.

*
*
*
*
*
*
*
*

82
110
160
110
110
82
110
160

Z1

Z2

102
921/2
75
921/2 178
104
80
1121/2 65
135
25
135
21
135
44

98
83
184
76
63
25
30
44

921/2








£15.44
£18.07
£45.00
£18.07
£18.07
£15.44
£18.07
£45.00

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

SPIGOT SOCKET BENDS

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Long tail.
size(mm) angle°

Z2

*
*

82
110

921/2
921/2

Z1
41
57

Z2

Z2

(max)

(min)

152
197

97
110




Code

Col

Pk/bx

107.3.92
107.4.92

G
GBW

5/40
–/10

Code

Col

Pk/bx

107.4.135
107P.6.135

GBW
G

–/15
1/8

Code

Col

Pk/bx

£14.94
£17.51

Z1

size(mm) angle°

Z1

Z1

*
*

110
160

135
135

Z2

Z2

(max)

(min)




42
60

85
130

£19.65
£46.65

Z1

Z2

45

110



107.4.025

G

5/25

£33.93

45

110



101.4.025

G

5/20

£33.79

Code

Col

Pk/bx

104.3.92
104.3.135
104.4.92
104.4.924
104.6.92

GBW
GB
GBWR
GBW
G

5/25
5/25
7
5/150
4/72

Code

Col

Pk/bx

104.4.104
104.4.135
104.6.135

G
GBW
G

5/10
–/6
3/54

Z2

VARIABLE BEND
SPIGOT/SOCKET

Adjustable 0-25°.
size(mm) angle°
Z1

* 110
0-25
Double spigot
* 110
0-25

Z2

SINGLE EQUAL BRANCH
TRIPLE SOCKET

With boss connections.
104.3.92
104.4.92
104.4.924
104.6.92

Z3

2
3
4
6

boss
boss
boss
boss

horns
horns
horns
horns

Z1

Connect to boss horns using 117 boss adaptors
(see page 11)
Z2

size(mm) angle°
*
*
*
*
*

Z3
Z1

A

82
82
110
110
160

921/2
135
921/2
921/2
921/2

Z1

Z2

Z3

70
19
82
101
184

83
108
82
96
178

35
102
54
50
160

A

74







£21.57
£21.57
£23.90
£29.00
£50.74

Z2

SINGLE EQUAL BRANCH

No waste boss connections.
size(mm) angle°
*
*
*

Z3
Z1

110
110
160

104
135
135

Z1

Z2

77
25
53

74
72
137 137
198198 (PUSH FIT)

Z3



£29.00
£24.93
£96.84

Z2

G - Grey B - Black W - White R - Rustic Brown

5

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

SINGLE BRANCH
SPIGOT OUTLET

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

With boss connections.
4 boss horns.
size(mm) angle°

A

Z1

Z2

Z3

74

103

96

50

Z3

110

A

Z1

921/2



Code

Col

Pk/bx

104.104.92

GB

–/4

Code

Col

Pk/bx

104.412.92

G

–/4

Code

Col

Pk/bx

104.422.92

G

–/3

Code

Col

Pk/bx

104.64.92

G

–/3

Code

Col

Pk/bx

104.64.135

G

–/2

Code

Col

Pk/bx

106.490.92

G

5

£31.14

Z2

SINGLE EQUAL BRANCH
VARIABLE BOSS

2 boss horns
2 waste sockets.
Spigot outlet

Z2

size(mm) angle°
Z3

110

Z1 A

921/2

A

B

Z1

Z2

Z3

142

140

91

83

59

A

B

Z1

Z2

Z3

142

140

91

83

59

Z1

Z2

Z3

59

87

62



£53.96

Socket outlet
size(mm) angle°

B

110

921/2



£53.96

B

SINGLE UNEQUAL BRANCH
TRIPLE SOCKET

2 boss horns.
size(mm) angle°

Z2

160/110

921/2



£57.29

Z3
Z1

No waste boss connections.

Z3

size(mm) angle°

Z1

Z2

Z3

160/110

70

173

164

Z1

Z2

Z3

94

83

59

135



£61.57

Z1
Z2

CORNER BRANCH
TRIPLE SOCKET

1 boss horn.
size(mm) angle°
110

921/2



£104.32

Z3
Z1

Z2

6

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

CORNER BOSS BRANCH

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

1 boss horn. 2 waste sockets.
Z1

Spigot outlet
size(mm) angle°

Z2

A

Z1

Z2

Code

Col

Pk/bx

120

83

59

106.490.12

G

7/126 £118.68

A

Z1

Z2

Code

Col

Pk/bx

120

83

59

106.490.22

G

–/3

A

B

Z1

Z2

Z3

Code

Col

Pk/bx

75

128

203

96

50

106.104.92

G

2/60

A

B

Z1

Z2

Z3

Code

Col

Pk/bx

74

–

138

95

50

106.4.92

GBW

2/60

A

B

Z1

Z2

Z3

Code

Col

Pk/bx

–

–

25

137

137

106.4.135

G

–/3

size(mm) angle°

Z1

Z2

Z3

Code

Col

Pk/bx

160/110 921/2

59

87

62

106.64.92

G

–/2

size(mm)

L

Z

Code

Col

Pk/bx

110

216

115

138.4

GBWR

–/10

size(mm)

L

Z

Code

Col

Pk/bx

110

216

166

139.4

GB

–/10

110

921/2

Socket outlet

A

size(mm) angle°
110

DOUBLE BRANCH

921/2



£118.68

4 boss horns.
Spigot outlet
size(mm) angle°

Z3
A

110

Z1

921/2

£59.07

B
Z2

4 boss horns.
Socket outlet

Z3
Z1

A

size(mm) angle°
110
Z2

921/2

110

Z2

£59.07

No bosses.
size(mm) angle°

DOUBLE UNEQUAL BRANCH



135



£61.74

2 boss horns.



£106.71

Z3
Z1

ACCESS PIPE
DOUBLE SOCKET



£25.35

Z L

ACCESS PIPE
SPIGOT OUTLET



£25.35

L
Z

G - Grey B - Black W - White R - Rustic Brown

7

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

ACCESS PIPE CONNECTOR

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

2 boss horns.

A

size(mm)

A

B

Z

82

41

39

120

size(mm)

A

B

Z

110

41

35

149

Z1

Z2

102

98

Z1

Z2

Z3

99

96

50



Code

Col

Pk/bx

137.3

GBW

5/25

Code

Col

Pk/bx

137.4

GBW

5/15

Code

Col

Pk/bx

103.4.92

GBW

5/15

Code

Col

Pk/bx

105.4.92

GB

–/6

Code

Col

Pk/bx

135.3
135.4
135.6

G
GB
G

5/90
5/45
5/50

Code

Col

Pk/bx

136.3
136.4
136.6

GW
GBWR
G

5/70
5/30
5/35

Code

Col

Pk/bx

6592/DVW

GBWR

1

£37.79

Z
B

4 boss horns.
A
Z



£38.39

B

ACCESS BEND
DOUBLE SOCKET

size(mm) angle°
110

921/2



£50.12

Z2

Z1

SINGLE ACCESS BRANCH
TRIPLE SOCKET

4 boss horns.
size(mm) angle°
110

921/2

size(mm)

L

hole saw ø

82
110
160

114
152
152

48
73
73

size(mm)

A

Z1

Z2

82
110
160

83
97
122

16
21
22

32
46
42

Z3



£40.92

Z1
Z3

Z2

ACCESS DOOR

L

ACCESS CAP
Z1
Z2
A

ACCESS DOOR WITH
TEST NIPPLE





£20.55
£20.55
£36.72

£14.55
£17.15
£32.28

Standard oval access door with test nipple for
manometer connection.
A

A
127

8





POA

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

THERMAL MOVEMENT
LIMITER
A

C

size(mm)

A

B

C

82
110
160

100
100
100

129
158
232

154
178
260





B

INTERMEDIATE SUPPORT
BRACKET

Code

Col

Pk/bx

190.3
190.4
190.6

Self
Self
Self

1/20
5/15
1/5

Code

Col

Pk/bx

191.3
191.4
191.6

Self
Self
Self

1/30
1/20
–/10

Code

Col

Pk/bx

140.3
140.4
140.6

Self
Self
Self

10/40 £4.80
10/30 £4.99
5/25 £12.01

Code

Col

Pk/bx

143.3
143.4

GBW
GBWR

5/150 £3.57
10/80 £3.34

Code

Col

Pk/bx

144.4

B

1/30

£29.76
£32.38
£51.33

To support horizontal pipework.

A

size(mm)

A

B

C

82
110
160

100
100
100

129
158
232

154
178
260



£15.15
£16.47
£22.04

CB

TWO-PIECE PIPE BRACKET

Galvanised steel

AB

C

size(mm)

A

B

C

D

82
110
160

140
175
216

114
147
196

76
89
114

124
152
197





D

ONE-PIECE PIPE BRACKET

size(mm)

A

B

C

D

82
110

132
164

110
141

76
90

117
155




A B
C
D

ADJUSTABLE PIPE BRACKET
PLASTIC-COATED

Both have self coloured backplates.
size(mm)

A

B

C

C

(max)

(min)

80

C



110

99

64

108

£6.78

size(mm)

A

B

C

Code

Col

Pk/bx

110

178

152

59

142.4

Self

10/20 £10.37

A B

PIPE BRACKET
GALVANISED DRIVE-IN

A
B
C

G - Grey B - Black W - White R - Rustic Brown

9

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

WEATHERING APRON

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Makes weathertight cover between soil pipe and lead
slate at roof level.
For lead slates
B
A

size(mm)

A

B

82
110
160

102
128
179

38
48
51





Code

Col

Pk/bx

131.3
131.4
131.6

GB
5/60
GBWR 5/90
G
5/50

£4.35
£4.99
£15.02

For asphalt upstand
D
C

WEATHERING SLATES

size(mm)

C

D

Code

Col

Pk/bx

82
110

204
203

59
46

131.3.200
131.4.200

G
G

5/35
5/30

Code

Col

Pk/bx

149.16.00

Alu/B

–/10

£18.36
£18.36

Makes watertight seal around pipe at roof level.
Available for flat or pitched roof.
Colours: Base – Aluminium
Cone – Black
For flat roof
size(mm)

Plate size

82 to 110

406 x 406



£51.74

For sloping roof (min 30°)
size(mm)

Plate size

Code

Col

Pk/bx

82 to 110

457 x 457

149.18.22

Alu/B

1/10

Code

Col

Pk/bx

149.24.22

Alu/B

1/10

Code

Col

Pk/bx

150.3
150.4
150.6

GB
GBWR
G

5/120 £4.35
5/185 £4.40
5/65 £11.51

Code

Col

Pk/bx

152.4

GBR

5/25

Code

Col

Pk/bx

153.3.4

G

5/15

£52.67

153.3.4I

Self

1

£1.88

£53.05

For sloping roof (min 17°)

VENT COWL

A

DUCT COWL

size(mm)

Plate size

82 to 110

610 x 610

size(mm)

A

82
110
160

51
64
83







£71.69

Stops rainwater from entering ventilation ducts.
size(mm)

A

L

110

205

80

L



£19.71

A

AUTOMATIC AIR
ADMITTANCE VALVE

Allows air to enter soil system, protecting water seals in
traps from effects of negative pressure.
size(mm)

A

B

L

82/110

160

50

138

A

L

Polystyrene Cover



B

10

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

TWO PART WASTE BOSS
SOLVENT SOCKET

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

For 32mm waste pipe

A
Z

size(mm)

A

Z

hole saw ø

110/32

79

53

48

Code

Col

Pk/bx

112.4.125

G

5/200 £8.44

Code

Col

Pk/bx

112.3.15
112.4.15

G
G

5/150 £8.44
5/150 £8.44

Code

Col

Pk/bx

112.4.2
112.6.2

GW
G

5/100 £8.76
5/100 £11.95

For 40mm waste pipe
size(mm)

A

Z

hole saw ø

82/40
110/40

69
82

39
53

57
57

For 50mm waste pipe

SOCKET PLUG

size(mm)

A

Z

hole saw ø

110/50
160/50

86
110

53
77

70
70

size(mm)

L

Code

Col

Pk/bx

110
160

69
92

130.4
130.6

GBW
G

5/50
5/35

Code

Col

Pk/bx

122.4.125

GW

5/130 £11.28

Code

Col

Pk/bx

122.4.15

GB

5/100 £11.78

Code

Col

Pk/bx



122.4.2

GBW

5/60

Code

Col

Pk/bx



120.4.125

GBWR 5/30

Code

Col

Pk/bx

120.4.15

GBWR

5/30

Code

Col

Pk/bx



123.4

GBW

5/30

Code

Col

Pk/bx



120.412.15

GR

5/30



£10.61
£19.49

L

SELF LOCKING BOSS
SEAL RING SOCKET

For 32mm waste pipe
A

size(mm)

A

Z

hole saw ø

110/32

111

60

60



For 40mm waste pipe

Z

size(mm)

A

Z

hole saw ø

110/40

111

60

64



For 50mm waste pipe

SINGLE BOSSED PIPE
CONNECTOR
DOUBLE SOCKET

size(mm)

A

Z

hole saw ø

110/50

119

60

75

£15.22

For 32mm waste pipe
size(mm)

Z1

Z2

Z3

110/32

30

56

31

£6.46

For 40mm waste pipe
Z3
Z1

size(mm)

Z1

Z2

Z3

110/40

30

56

31



£6.46

For 50mm waste pipe

Z2

SINGLE BOSSED PIPE
CONNECTOR SPIGOT

size(mm)

Z1

Z2

Z3

110/50

30

59

31

£6.81

For 40mm waste pipe
size(mm)

Z1

Z2

Z3

110/40

28

56

27

£6.27

Z3
Z1

Z2

G - Grey B - Black W - White R - Rustic Brown

11

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

DOUBLE BOSSED PIPE
CONNECTOR DOUBLE SOCKET

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

2 50mm waste sockets
2 blanking plugs
For 50mm waste pipes (40mm with adaptor)

Z1
Z2

size(mm)

Z1

Z2

Z3

82/50

50

38

65

Code

Col

Pk/bx



120.3.2

GB

5/30

Code

Col

Pk/bx



121.4.15

GB

5/25

£12.97

Z3

TRIPLE BOSSED PIPE
CONNECTOR DOUBLE SOCKET

size(mm)

Z1

Z2

Z3

110/40

30

56

30

£10.48

Z3
Z1

Z2

FOUR-WAY BOSS PIPE
DOUBLE SOLVENT SOCKET

2 boss horns, 2 waste sockets.

Z2

Z1

Z2

Z3

Z4

Z5

Code

Col

Pk/bx

110

44

40

56

55

59

120.4.2

G

5/9

£10.48

Z3

Z5

Z1

size(mm)

Z4

FOUR-WAY BOSS PIPE
SOLVENT SOCKET/SPIGOT

2 boss horns, 2 waste sockets.

UNIVERSAL SOIL MANIFOLD

size(mm)

Z1

Z2

Z3

Z4

Z5

Code

Col

Pk/bx

110

44

40

56

55

59

120.412.2

G

5/9

£10.48

For Solvent waste connections
For connection of BS 5254/BS 5255 40mm waste pipes
at floor level. Incorporates 4 inlets to accept 40mm
waste pipes without need for adaptors. Use with Swivel
Elbow or Swept Bend.
For Pushfit waste connections see page 18
size(mm)

L1

L2

L3

L4

Z1

Code

Col

Pk/bx

110

228

189

199

217

105

119.412.15

G

1/5

size(mm)

A

Z

Code

Col

Pk/bx

82/50
110/50
110/82
160/110

11
24
11
22

3
3
3
25

124.3.2
124.4.2
124.4.3
124.6.4

GW
GBW
GBW
G

5/90
5/60
5/60
5/45

L3

£32.29

L4

SOCKET REDUCER
SOCKET/SPIGOT
A






£9.35
£11.66
£12.01
£24.35

Z

12

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

STRAIGHT BOSS ADAPTOR
RING SEAL SOCKET

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

For 32mm waste pipe
use on
stack
size(mm)

A†

Z†

hole saw ø

82
110
160

107
119
144

61
74
99

51
51
51

Code

Col

Pk/bx

117.125
117.125
117.125

GBW
GBW
GBW

5/180 £3.36
5/180 £3.36
5/180 £3.36

Code

Col

Pk/bx

117.15
117.15
117.15

GBWR 5/160 £3.36
GBWR 5/160 £3.36
GBWR 5/160 £3.36

For 40mm waste pipe

Z

use on
stack
size(mm)

A†

Z†

hole saw ø

82
110
160

107
119
144

61
74
99

51
51
51

For 50mm waste pipe

A

BOSS ADAPTOR BEND
SOLVENT SOCKET

use on
stack
size(mm)

A†

Z†

hole saw ø

Code

Col

Pk/bx

82
110
160

107
119
144

61
74
99

51
51
51

117.2
117.2
117.2

GBW
GBW
GBW

5/120 £4.79
5/120 £4.79
5/120 £4.79

Code

Col

Pk/bx

117.15.90
117.15.90
117.15.90

GBW
GBW
GBW

5/125 £5.01
5/125 £5.01
5/125 £5.01

Code

Col

Pk/bx

117.2.90
117.2.90
117.2.90
117.2.150
117.2.150
117.2.150

GBW
GBW
GBW
G
G
G

5/190
5/190
5/190
5/190
5/190
5/190

For 40mm waste pipe
use on
stack
size(mm)

A

Z1

Z2

hole saw ø

82
110
160

106
119
145

82
95
121

22
22
22

51
51
51

For 50mm waste pipe

A

Z2

Z2

Z1

ADAPTOR TO
UNDERGROUND DRAIN

use on
stack
size(mm)

A

Z1

Z2

hole saw ø

82
110
160
82
110
160

120
132
158
–
–
–

89
101
127
80
92
118

30
30
30
11
11
11

51
51
51
51
51
51

£6.01
£6.01
£6.01
£5.24
£5.24
£5.24

Push fit into bore of underground pipe.
size(mm)

L

Code

Col

Pk/bx

82/110

54

4DW3

B

5/50

£15.17

Note: As a Terrain Underground product different
discount structure applies.
L

ADAPTOR TO CAST IRON
SPIGOT
B

size(mm)

A

B

Z1

Code

Col

Pk/bx

82
110

60
64

98
127

240
236

126.3.12
126.4.12

G
G

5/30
5/15

£10.92
£14.66

A

Z1

G - Grey B - Black W - White R - Rustic Brown

13

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

ADAPTOR SADDLES

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Used with 117 Waste Adaptors to enable direct
connection of 32mm and 40mm waste pipe to
soil pipe.
For 40mm waste pipe

Z1

PVC-U CAULKING BUSH

size(mm)

Z1

Code

Col

Pk/bx

110/40

29

115P.4

GR

5/140 £6.94

To connect soil pipe to sockets of other material. Sold
caulked into sockets.

C

size(mm)

A

B

C

Z

Code

Col

Pk/bx

Z

110

133

124

63

67

132.4

G

5/40

Code

Col

Pk/bx

129.4.05
129.4.14
129.4.24
129.4.34

W
W
W
W

–/6
–/6
5/10
5/10

Code

Col

Pk/bx

107.35.05
107.35.14
107.35.24
107.35.34
F107.35.09
F107.35.18
F107.35.29

B
B
B
B
B
B
B

5/10
5/10
5/10
5/10
1/24
1/12
1/12

Code

Col

Pk/bx

129.4.104

W

5/30

£14.44

B
A

WC MANIFOLD CONNECTORS
FIN SEAL SPIGOT
Z1

Z2

When used in conjunction with a branch 104, up to
seven WC pans can be connected either side of the soil
stack.
size(mm) angle°
110
110
110
110

DUOFIX WC MANIFOLD
BEND CONNECTORS
FIN SEAL SPIGOT
Z1

size(mm) angle°

Z2

WC CONNECTORS
14° FIN SEAL SPIGOTS
Z1

5
14
24
34

90/110
90/110
90/110
90/110
90/110
90/110
90/110

5
14
24
34
9
18
29

size(mm)

Z1

110

Z2

WC CONNECTORS
SPIGOT OUTLET

19

Z1

Z2

14
19
24
26

58
58
58
70

Z1

Z2






52
65
57
63
60
70
64
78
6.4 62.3
11.3 67.4
18.3 77.3

Z2

Z2

(max)

(min)

90

57



£23.46
£23.46
£23.46
£23.46

£21.72
£21.72
£21.72
£21.72
£21.72
£21.72
£21.72

£14.49

For connection of WC pans to existing soil or waste
pipework previously connected to traditional ‘S’ mode
pan.
Z1

size(mm) angle°
110

98

L

Z1

Z2

Code

Col

Pk/bx

150

63

240

129.4.90

W

–/5

£19.89

Z2

L

14

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100-Solvent

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

WC CONNECTORS
SOCKET OUTLET

size(mm) angle°
Z1

110

21/2

L

Z1

101

12

L

Z1

Z2

155

61

55



Code

Col

Pk/bx

128.4.02

W

5/50

Code

Col

Pk/bx

128.4.90

W

5/25

Code

Col

Pk/bx

102.4.5

W

5/20

Code

Col

Pk/bx

125.4.5

W

5/25

Code

Col

Pk/bx

128.4.025

W

5/25

£10.92

L

size(mm) angle°

Z1

110

90



£17.55

Z2

L

90° WC TURNED CONNECTOR
SOCKET OUTLET
B

For connecting non-BS 5503 WC pans to soil pipe.
size(mm) angle°
110

921/2

A

B

L

Z1

Z2

72

133

207

52

72



£28.04

A
L

Z2

Z1

WC STRAIGHT CONNECTOR
SOCKET OUTLET
B

For connecting non-BS 5503 WC pans to soil pipe.
size(mm)

A

B

Z1

110

52

133

12

Z1

Z2

45

86



£17.08

A
Z1

WC VARIABLE CONNECTOR
VARIABLE BEND
Z1

Z2

Adjustable 0-25°.
size(mm) angle°
110

0-25



£34.83

G - Grey B - Black W - White R - Rustic Brown

15

Terrain
Systems
TerrainSoil
Soil Systems

100P-PushFit

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

SOIL PIPE
SINGLE SOCKET-ENDED

size(mm)

L1

T

Code

Col

Pk/St

100P.3.30
100P.3.40
100P.4.30
100P.4.40
100P.6.30
100P.6.40

G
G
GBW
GBW
G
G

1/88
1/88
2/67
2/67
1/33
1/33

Code

Col

Pk/bx

111.SP4

G

5/40

(min)

82
82
110
110
160
160

L1

3m
4m
3m
4m
3m
4m

3.2
3.2
3.2
3.2
3.3
3.3

£9.12
£9.11
£9.20
£9.20
£24.70
£24.72

£30.67
£40.80
£30.91
£41.22
£83.03
£110.75

T

SLIP COUPLER
DOUBLE SOCKET

size(mm)
110

STRAIGHT COUPLER
DOUBLE SOCKET

L

£13.07

With central stop.

Z

PIPE END SOCKET
SPIGOT/SOCKET

size(mm)

L

Z

Code

Col

Pk/bx

82
110
160

103
129
188

6
6
10

110P.3
110P.4
110P.6

G
GBW
G

5/30
5/40
–/5

size(mm)

L1

L2

Z

Code

Col

Pk/bx

82
110

91
107

39
48

4
3

111P.3
111P.4

G
GBW

5/60
–/20

L1

Z1

Z2

Code

Col

Pk/bx

149
142
215
152
76
89
140

109
85
135
104
36
42
60

161
145
215
184
89
119
130

101P.3.92
101P.4.92
101P.6.92
101P.4.112
107P.3.135
107P.4.135
107P.6.135

G
GBW
G
G
G
GBW
G

5/25
–/10
1/4
–/10
5/40
–/15
1/8

L1

Z1

Z2

Code

Col

Pk/bx

113

65

197

107P.4.92

G

–/10

£11.81
£10.73
£25.36

£6.69
£7.51

L1 Z
L2

SWEPT BEND
SPIGOT/SOCKET

size(mm) angle°

L1
Z1

Z2

TIGHT RADIUS BEND
SPIGOT/SOCKET

82
110
160
110
82
110
160

921/2
921/2
921/2
1121/2
135
135
135

size(mm) angle°
110

921/2

£14.96
£16.11
£48.36
£18.01
£13.17
£16.26
£46.65

£16.27

L1
Z1

Z2

16

*£ per metre is for estimating purposes only.

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100P-PushFit

OFFSET BEND

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Top

L1
Z1

size(mm)

L1

L2

Z1

Z2

Code

Col

Pk/bx

110

119

73

71

54

101P.4T.112 GB

5/25

size(mm)

L1

Z1

Z2

Code

Pk/bx

110

73

54

127

101P.4B.112 GB

5/20

L1

L2

Z1

Z2

Z3

Code

Col

Pk/bx

225

125

54

85

131

104P.3.92

G

5/15

£21.14

Z2
L2

Bottom

L1
Z1

Col

£21.14

Z2

SINGLE BRANCH
SPIGOT OUTLET

With spigot bosses.
2 boss horns.
size(mm) angle°
Z1

82

L1
Z3

921/2

£23.50

Z2
L2

5 boss horns.
size(mm) angle°

Z1 A
B

L1
Z3

110
160

Z2
L2

921/2
921/2

L1

278 152
440 242

size(mm) angle°
110

Z1

L2

L1

Z1

Z2

Z3

A

B

Code

Col

Pk/bx

58
90

96 164
155 260

19

57

104P.4.92
104P.6.92

GBW
G

8
1/4

L2

Z1

Z2

Z3

Code

Col

Pk/bx

165

95

95

184

104P.4.112

G

1/5

L1

L2

Z1

Z2

Z3

Code

Col

Pk/bx

328

215

168

168

113

104P.4.135

G

–/6

L1

L2

Z1

Z2

Z3

Code

Col

Pk/bx

287

172

66

124

173

106P.4.92

GB

–/2

1121/2 349

£21.73
£56.03

£30.71

L1
Z3
Z3
L2

SINGLE EQUAL BRANCH
PLAIN

No boss connections.
size(mm) angle°
110

135

£22.37

Z1
L1
Z2
Z3

L2

DOUBLE EQUAL BRANCH
SPIGOT OUTLET

4 boss connections.
size(mm) angle°
110

921/2

£56.89

Z1
L1
Z2
L2

Z3

G - Grey B - Black W - White R - Rustic Brown

17

Terrain
Systems
TerrainSoil
Soil Systems

100P-PushFit

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

ACCESS PIPE AND COVER
SINGLE SOCKET

Z1

size(mm)

L1

L2

Z1

Code

Col

Pk/bx

82

193

97

153

139P.3

G

–/10

size(mm)

L1

L2

Z1

Code

Col

Pk/bx

110

222

114

175

139P.4

GB

–/10

£29.44

L1

L2

Z1

£29.39

L1

L2

Access door aperture size:
172 x 130mm diameter – secured by 2 screws.
L1

Z1
L2

ACCESS BEND
SINGLE SOCKET

size(mm)

L1

L2

Z1

Code

Col

Pk/bx

160

366

198

305

139P.6

G

1/5

£61.70

Access door aperture size:
110 x 80mm diameter – secured by locking mechanism
(use self tapping screw for anti-vandal locking).

L1

size(mm) angle°
110

921/2

L1

L2

Z1

Z2

Code

Col

Pk/bx

41

69

91

157

103P.4.92

GB

5/15

£44.36

L2
Z2
Z1

ACCESS SINGLE EQUAL
BRANCH SINGLE OUTLET

With waste bosses.
4 boss horns.
Access door aperture size:
114 x 80mm diameter – secured by locking mechanism
(use self tapping screw for anti-vandal locking).

L1 L2
Z1
Z3

Z2

ACCESS DOOR WITH
TEST NIPPLE

size(mm)

L1

L2

Z1

Z2

Z3

Code

Col

Pk/bx

110

136

74

87

105

172

105P.4.92

G

–/4

Code

Col

Pk/bx

6592/DVW

GBWR

1

£50.99

Standard oval access door with test nipple for
manometer connection.
A

A

127

ACCESS CAP
Z1
Z2

size(mm)

A

Z1

Z2

Code

Col

Pk/bx

82
110
160

81
102
134

26
34
34

13
10
10

136P.3
136P.4
136P.6

G
GBW
G

5/40
5/40
1/15

POA

£11.99
£14.14
£33.23

A

18

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainSoil
Soil Systems

100P-PushFit

STRAP-ON BOSS

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

For 32mm waste pipe

L1

NEW!
Now allows back-to-back
dual connection of similar
and/or dissimilar pipe
diameters

size(mm)

L1

hole saw ø

110/32

116

60

Part No. 9105.237

Code

Col

Pk/bx

112P.4.125

GBW

5/100 £7.17

Code

Col

Pk/bx

112P.4.15

GBW

5/90

Code

Col

Pk/bx

112P.4.2

GB

5/85

Code

Col

Pk/bx

117.125
117.125
117.125

GBW
GBW
GBW

5/180 £3.36
5/180 £3.36
5/180 £3.36

Code

Col

Pk/bx

117.15
117.15
117.15

GBWR 5/160 £3.36
GBWR 5/160 £3.36
GBWR 5/160 £3.36

For 40mm waste pipe
size(mm)

L1

hole saw ø

110/40

116

60

Part No. 9105.237

£7.17

For 50mm waste pipe

BOSS ADAPTORS STRAIGHT

size(mm)

L1

hole saw ø

110/50

120

60

Part No. 9105.237

£7.24

For 32mm waste pipe
use on
stack
size(mm)

A†

Z†

hole saw ø

82
110
160

107
119
144

61
74
99

51
51
51

For 40mm waste pipe

Z

use on
stack
size(mm)

A†

Z†

hole saw ø

82
110
160

107
119
144

61
74
99

51
51
51

A

For 50mm waste pipe

ADAPTOR SADDLES

use on
stack
size(mm)

A†

Z†

hole saw ø

Code

Col

Pk/bx

82
110
160

107
119
144

61
74
99

51
51
51

117.2
117.2
117.2

GBW
GBW
GBW

5/120 £4.79
5/120 £4.79
5/120 £4.79

For 40mm waste pipe
size(mm)

Z1

hole saw ø

Code

Col

Pk/bx

110/40

29

51

115P.4

G

5/140 £6.94

size(mm)

L1

L2

Z1

Code

Col

Pk/bx

82/50
110/50
110/82
160/110

117
136
140
233

44
45
55
75

15
16
18
44

124P.3.2
124P.4.2
124P.4.3
124P.6.4

G
GB
G
G

5/60
5/50
5/40
5/15

size(mm)

L1

Z1

Z2

Code

Col

Pk/bx

82
110

145
212

48
43

97
110

123P.3
123P.4

G
GB

5/20
–/10

Z1

REDUCERS
L2
L1

Z1

SHORT BOSSED PIPE

£11.03
£15.36
£15.36
£22.14

£8.71
£8.80

Z1
L1
Z2

G - Grey B - Black W - White R - Rustic Brown

19

Terrain
Systems
TerrainSoil
Soil Systems

100P-PushFit

FOUR-WAY BOSS PIPE
PUSH-FIT SOCKET/SPIGOT

Z5

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

2 boss horns.
size(mm)

Z1

Z2

Z3

Z4

Z5

Code

Col

Pk/bx

110

44

40

56

55

59

120P.412.2

G

5/15

£11.34

Z3

Z4

TRIPLE BOSS COLLAR
Z1 L1

size(mm)

L1

L2

Z1

Code

Col

Pk/bx

110/40

65

95

125

120P.4.15

GB

5/30

size(mm)

L

Code

Col

Pk/bx

110
160

69
92

130.4
130.6

GBW
G

5/50
5/35

£8.80

L2

SOCKET PLUG

£10.61
£19.49

L

UNIVERSAL SOIL MANIFOLD
L3
98

L1 L2Z1

For Pushfit waste connections
For connection of BS 5254/BS 5255 32mm and 40mm
waste pipes at floor level. Incorporates 4 inlets to
accept 32mm or 40mm waste pipes without need for
adaptors. Use with Swivel Elbow or Swept Bend.
Complete with 4 sealing gaskets, and 3 removable
plugs.
For Solvent waste connections see page 10

L3

size(mm)

L1

L2

L3

L4

Z1

Code

Col

Pk/bx

110

228

189

199

217

105

119P.4.15

G

–/5

size(mm)

L

Z1

Z2

Code

Col

Pk/bx

110

125

10

56

129P.4.00

W

5/40

Z1

Z2

Code

Col

Pk/bx

230

60

129P.4.90

W

–/5

£32.74

L4

WC CONNECTOR
STRAIGHT FIN SEAL

£13.16

L

Z2

Z1

WC CONNECTOR
90° FIN SEAL BEND

size(mm) angle°
110

90

£13.15

Z2

90°
Z1

Full range of WC Connectors available, page 12–13.
For pipe brackets see page 7.

20

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainWaste
Waste Systems

200-Solvent

WASTE PIPE

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Plain-ended.
size(mm)

L

T

Code

Col

Pk/bx

200.125.30
200.125.40
200.15.30
200.15.40
200.2.30
200.2.40

GW
GBWR
GW
GBWR
W
GBW

5
5
5
5
5
5

(min)
L

T

SEAL RING ADAPTOR

32
32
40
40
50
50

3m
4m
3m
4m
3m
4m

1.8
1.8
1.9
1.9
2.0
2.0

£2.44
£2.44
£3.02
£3.02
£4.54
£4.55








£7.68
£10.23
£9.50
£12.66
£14.31
£19.09

To convert 50mm 207.2 spigot socket bends to
expansion fitting.

A

STRAIGHT COUPLER
DOUBLE SOCKET
Z

size(mm)

A

Code

Col

Pk/bx

50

65

209.2

GW

5/250 £3.68

size(mm)

L

Z

Code

Col

Pk/bx

32
40
50

52
58
65

2
2
2

210.125
210.15
210.2

GBWR
GBWR
GBW

10/350 £1.60
5/240 £1.59
10/140 £2.91

Code

Col

Pk/bx

211.125
211.15
211.2

G
G
G

5/200 £6.68
5/130 £8.75
5/90 £9.97

Code

Col

Pk/bx

225.125
225.15
225.2

GW
GW
GW

10/240 £2.81
10/180 £3.39
5/100 £4.59

Code

Col

Pk/bx

227.125
227.15
227.2

GW
GW
G

5/250 £2.81
5/180 £3.39
5/100 £4.59




L

UNION DOUBLE SOCKET
Z

Threaded union for easy disconnection if required.
size(mm)

L

Z

32
40
50

59
65
73

8
8
8

size(mm)

L

Z

32
40
50

67
70
77

4
4
4




L

EXPANSION COUPLER
SEAL RING AND
SOLVENT SOCKET
Z




L

SPIGOT/SOCKET COUPLER
Z

To create a close-coupled expansion joint for all MuPVC
fittings.
size(mm)

Z

32
27
40
30
50
35*
*dimension includes expansion

*£ per metre is for estimating purposes only.





G - Grey B - Black W - White R - Rustic Brown

21

Terrain
Systems
TerrainWaste
Waste Systems

200-Solvent

SWEPT BEND
DOUBLE SOCKET

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

911/4°, 135° and 165° as standard.
For 911/4° swept bend
size(mm) angle°

Z2

32
40
50

911/4
911/4
911/4

Z1

Z2

34
38
45

34
38
45





Code

Col

Pk/bx

201.125.91
201.15.91
201.2.91

GBWR
GBWR
GBW

20/220 £1.62
5/140 £1.81
5/70 £3.18

Code

Col

Pk/bx

Z1

For 135° swept bend
size(mm) angle°

Z1

Z2

10
11
14

10
11
14

Z2

32
40
50

Z1

135
135
135





201.125.135 GBWR
201.15.135 GBWR
201.2.135
GBW

10/280 £1.62
5/200 £1.81
5/100 £3.18

Code

Pk/bx

For 165° swept bend
size(mm) angle°
Z2

32
40
50

Z1

SPIGOT/SOCKET BENDS

165
165
165

Z1

Z2

5
5
6

5
5
6





Col

201.125.165 G
201.15.165 G
201.2.165
G

10/320 £2.46
5/220 £3.19
5/250 £4.20

Code

Col

Pk/bx

207.125.92
207.15.92
207.2.92
207.125.135
207.15.135
207.2.135
207.125.150
207.15.150

GBW
GBW
GW
W
GBW
GW
GB
GB

5/180 £2.66
5/120 £3.05
5/60 £4.33
5/300 £2.64
5/180 £3.04
5/100 £4.41
10/260 £2.75
5/200 £3.14

Code

Col

Pk/bx

202.125.91
202.15.91

GBWR
GBWR

10/280 £1.48
10/200 £1.63

To change pipe direction in limited-space situations:
921/2° and 150° as standard.
size(mm) angle°

Z1

Z2

Z2

(max)

(min)

19
21
29
8
11
13
8
9

92
95
102
30
38
46
52
49

46
52
64
–
–
–
29
33

Z1

Z2

19
22

19
22

Z1

Z2

Z3

Code

Col

Pk/bx

44
51
13

44
51
71

20
25
71

206.15.91
206.2.91
206.2.135

GW
GW
G

5/105 £6.71
5/55 £7.03
5/55 £45.98

Code

Col

Pk/bx

204.125.91
204.15.91
204.2.91
204.125.135
204.15.135
204.2.135

GBWR
GBWR
GBW
GW
GW
GBW

5/120
5/90
5/45
5/120
5/80
5/80

Z2

32
40
50
32
40
50
32
40

Z1

KNUCKLE BEND
DOUBLE SOCKET

921/2
921/2
921/2
135
135
135
150
150

size(mm) angle°
32
40

911/4
911/4













Z2

Z1

SWEPT CROSS
ALL SOCKET

size(mm) angle°
40
50
50

Z3

911/4
911/4
135

Z1

Z2

SWEPT TEE
ALL SOCKET

911/4° and 135° as standard.
size(mm) angle°
32
40
50
32
40
50

Z3
Z1

Z2

22

911/4
911/4
911/4
135
135
135

Z1

Z2

Z3

30
32
43
8
10
13

30
35
43
48
57
71

19
22
29
48
57
71








£2.18
£2.76
£5.39
£2.61
£3.45
£5.39

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainWaste
Waste Systems

200-Solvent

LEVEL INVERT TAPER

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

To reduce socket of any standard fitting to accept a
smaller size pipe. Larger end spigot and smaller end
socket.

Z

size(mm)

A
centres

L

Z

40/32
50/32
50/40

4
10
7

73
98
90

47
73
62

size(mm)

A
centres

40/32
50/32
50/40

0
7
4

A

L

SOCKET REDUCER
Z

Code

Col

Pk/bx

223.15.125
223.2.125
223.2.15

G
GW
G

5/230 £1.99
10/190 £2.47
10/160 £2.46

Z

Code

Col

Pk/bx

3
6
3

224.15.125
224.2.125
224.2.15

GBWR
GBW
GBW

20/640 £1.60
10/350 £2.31
10/350 £2.82

Code

Col

Pk/bx

240.125
240.15
240.2

GBWR
GBWR
GBW

20/1000£0.52
20/800 £0.60
10/500 £0.80

Code

Col

Pk/bx

242.125
242.15
242.2

GW
W
GW

10/750 £0.63
10/500 £0.71
10/300 £1.53

Code

Col

Pk/bx

243.125
243.15
243.2

Self
Self
Self

10/120 £2.29
10/100 £2.73
10/70 £3.47

Code

Col

Pk/bx

237.125
237.15
237.2

GBW
GBW
GBW

10/350 £1.48
10/320 £1.48
5/180 £2.13

Code

Col

Pk/bx

231.2

G

5/135 £3.38





A

PIPE FIXING CLIP

A

size(mm)

A

B

32
40
50

33
37
43

54
60
76





B

EXPANSION FITTING
FIXING CLIP

To secure control thermal expansion at regular points
along pipework.

A

PIPE AND FITTING BRACKET
(METAL)

size(mm)

A

32
40
50

33
37
43

size(mm)

A

B

32
40
50

57
60
75

44
48
53









A

B

ACCESS PLUG
L

WEATHERING APRON

size(mm)

L

32
40
50

47
54
56





To provide weathertight cover over lead slate around
50mm waste pipe penetrating roof.

B

size(mm)

A

B

50

76

38



A

G - Grey B - Black W - White R - Rustic Brown

23

Terrain
Systems
TerrainWaste
Waste Systems

200-Solvent

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

VENT COWL

A

AUTOMATIC AIR
ADMITTANCE VALVE

size(mm)

A

50

34



Code

Col

Pk/bx

250.2

GW

5/300 £3.84

Code

Col

Pk/bx

253W

W

5/70

Code

Col

Bx

281.43
281.64

GT
GT

2/20
1/12

Code

Col

Bx

282.6
283.6

GW
Self

1/36
1/36

Allows air into waste system when negative pressure
occurs. Helps prevent syphonage of traps.
A

size(mm)

A

B

L

L1

C

D

32/40/50

65

26

80

55

25

25



£20.36

L
B

C
L1
D

TRAPPED FLOOR GULLY
H
B

C

EF

A

D

FLOOR GULLY INLETS
A
Z1

G

Under-floor trap (e.g. for shower areas) with 3 sockets
to accept 40mm waste pipe.
Seal depth: 50mm.
Cleaning access via removable baffle with integral
gasket to maintain airtight seal.
size(mm)

A

B

C

D

E

F

110/82
160/110

169
169

69
70

77
85

64
69

51
55

42
50

24

H

£21.22
£21.22

Two-part fitting to be set in standard-tiled floor
(e.g. in shower areas). Comprises of raising piece with
50mm square top, and snap-in cover.
size(mm)

A

B

Z1

Z2

14
14

48
48

Z2

B

G

82 110
110 160

110 PVC 50x150 110
110 SS 50x150 110




SEALED GULLY
RAISING PIECE

size(mm)

Code

Col

Bx

110

284.6

GW

1/36

SEALED GULLY
RAISING PIECE
STAINLESS STEEL COVER

size(mm)

Code

Col

Bx

110

285.6

Self

1/36

£7.70
£15.58

£9.43

£15.94

G - Grey B - Black W - White R - Rustic Brown T - Terracotta

Terrain
Systems
TerrainWaste
Waste Systems

200-Solvent

ADAPTOR TO UNDERGROUND
DRAIN PIPE
A

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Push-fit connection into pipes with nominal 100mm
bore. External use only.
size(mm)

A

L

32/40/50

8

40

Code

Col

Pk/bx

4DW200

B

5/60

£15.17

Note: As a Terrain Underground product different
discount structure applies.

L

ADAPTOR TO METAL PIPE

Supplied with seal ring.

A
B

size(mm)

A

B

Z

Code

Col

Pk/bx

50

70

42

358

226.2

G

5/55

Code

Col

Pk/bx

232

G

10/350 £3.81

Code

Col

Pk/bx

218.125
218.15

W
W

10/300 £3.63
10/250 £3.63

Code

Col

Pk/bx

212.125
212.15
212.2

G
G
G

10/270 £2.84
10/220 £2.84
5/140 £4.10

Code

Col

Pk/bx

216.125
216.15
216.2

G
G
G

5/400 £2.73
5/320 £3.21
5/200 £4.59

£8.75

Z

CAULKING BUSH

For connecting MuPVC waste pipe to 50mm socket of
other material. Solvent-weld to pipe.

A

size(mm)
32/40/50

A

B

C

D

43

36

56

70



B
C
D

REVERSE NUT ADAPTOR
Z A

For solvent-weld connection of MuPVC waste pipe (or
waste fitting) to BSP male threaded fitting or pipe.
size(mm)

A

L

Z

32/32
40/40

15
15

50
53

11
11




L

200 WASTE TO MALE IRON
Z

A

For solvent-weld connection of MuPVC waste pipe or
fitting to BSP threaded male pipe or fitting.
Socket and threaded socket.
size(mm)

A

L

Z

32/32
40/40
50/50

23
23
23

51
54
57

3
3
3

L

Z

A





Spigot and threaded socket.
size(mm)

A

Z

32/32
40/40
50/50

23
23
23

3
3
3





G - Grey B - Black W - White R - Rustic Brown

25

200-Solvent

Terrain
Systems
TerrainWaste
Waste Systems

200 WASTE TO FEMALE IRON
Z A

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

For solvent-weld connection of MuPVC waste pipe or
fitting to BSP threaded female pipe or fitting.
Socket and threaded socket.
size(mm)

A

L

Z

32/32
40/40
50/50

19
19
19

48
51
54

3
3
3





Code

Col

Pk/bx

213.125
213.15
213.2

G
GW
GW

10/320 £2.42
10/240 £2.84
5/140 £4.10

Code

Col

Pk/bx

217.125
217.15
217.2

G
G
GW

5/300 £2.73
5/240 £3.21
5/160 £4.32

L
Z A

Spigot and threaded socket.
size(mm)

A

Z

32/32
40/40
50/50

19
19
19

6
6
6





Innovative
Products
Innovative Products
Universal Soil Manifold

New Strap-on Boss

■ Assembled using mirror
welding technology –
providing a consistent,
stronger and more durable
weld

■ Detachable rear strap
provides back to back
connection of common or
different diameters
■ 32mm, 40mm and 50mm
boss diameters

■ The most compact four
entry manifold available
■ Terrain branded waste
plugs, easily removable for
installation flexibility

■ Same diameter of stack
opening for all boss sizes
119P.4.15

■ Now available with solvent weld inlets
■ See pages 10 and 18 for further details

New Pipe Marking Template

■ Unrivalled installation
flexibility – branch and boss
pipe incorporated in a single
adjustable fitting

■ Marking template for access
doors and associated Terrain
waste bosses

■ Joint design assures vertical
alignment during installation
and operation

112P.4.2

■ See page 17 for further details

Single Equal Branch – Variable Boss

■ With the aid of a spirit level
it is a tool for measuring
gradients of fall between
0.5, 1.0 and 2.5 degrees

■ Direct pipe connection (x2)
for 50mm waste runs – no
additional fitting required

26

■ Increased contact area for
greater installation security

104.412.92

■ Can be used to mark angles
of rotation 0, 15, 45, 90,
135 and 165 degrees

9105.500

■ Anti-tamper proof joint means that major product
parts can no longer be separated

■ Made from polypropylene, the template is tough,
durable and will not be affected by solvent cement

■ See page 4 for further details

■ See page 31 for further details

G - Grey B - Black W - White R - Rustic Brown

Terrain
Systems
TerrainWaste
Waste Systems

300-PushFit

WASTE PIPE

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Plain-ended.
size(mm)

L

T

Code

Col

Pk/bx

300.125.30
300.15.30
300.2.30

GBW
GBW
G

10
10
10

(min)
L

32
40
50

3m
3m
3m

1.8
1.9
2

£1.23
£1.52
£2.53

£4.12
£5.10
£8.50

size(mm)

L

Z1

Code

Col

Pk/bx

32
40
50

80
80
70

2
2
2

310.125
310.15
310.2

GBW
GBW
G

10/350 £1.31
10/300 £1.31
10/200 £2.26

Z1

Code

Col

Pk/bx

55
55
65

301.125.91
301.15.91
301.2.91

GBW
GBW
G

10/240 £1.31
10/200 £1.31
10/90 £2.26

Z1

Code

Col

Pk/bx

10
11
14

301.125.135 GBW
301.15.135 GBW
301.2.135
G

10/300 £1.31
10/280 £1.31
10/100 £2.26

Z1

Code

Col

Pk/bx

20
23
28

302.125.90
302.15.90
302.2.90

GBW
GBW
G

10/160 £1.31
10/220 £1.31
10/100 £2.25

T

STRAIGHT COUPLER
DOUBLE SOCKET

L

Z1

SWEPT BEND
DOUBLE SOCKET

911/4° and 135° as standard.
For 911/4° swept bend
size(mm) angle°

Z1

911/4°

32
40
50

911/4
911/4
911/4

Z1

For 135° swept bend
size(mm) angle°

Z1

Z1

KNUCKLE BEND 90°
DOUBLE SOCKET

32
40
50

135
135
135

size(mm) angle°
32
40
50

90
90
90

90°

Z1

Z1

SWIVEL ELBOW BEND 90°
SINGLE SOCKET/SPIGOT

Z1

size(mm) angle°
32
40

90
90

Z1

Z2

Code

Col

Pk/bx

30
25

60
60

307.125.90
307.15.90

GW
GW

10/170 £1.31
10/110 £1.31

Z1

Z2

Z3

Code

Col

Pk/bx

25
30
35

30
33
40

35
40
46

304.125.91
304.15.91
304.2.91

GBW
GBW
G

10/160 £1.44
10/120 £1.44
10/70 £2.43

90°

Z2

SWEPT TEE 911/4°

size(mm) angle°
32
40
50

Z1
Z3

911/4
911/4
911/4

911/4°

Z2

*£ per metre is for estimating purposes only.

G - Grey B - Black W - White R - Rustic Brown

27

Terrain
Systems
TerrainWaste
Waste Systems

300-PushFit

SOCKET REDUCER

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

To reduce waste socket to accept smaller diameter
waste pipe.

Z1

PIPE AND FITTING CLIP

size(mm)

Z1

Code

Col

Pk/bx

40/32
50/32
50/40

35
35
35

323.15.125
323.2.125
323.2.15

GBW
G
G

10/400 £1.41
10/180 £1.41
10/150 £2.43

size(mm)

L1

C1

C2

Code

Col

Pk/bx

32
40

70
77

34
37

54
61

340.125
340.15

GBW
GBW

20/800 £0.46
20/800 £0.46

size(mm)

L1

C1

C2

Code

Col

Pk/bx

50

60

51

22

343.2

G

10/600 £1.11

size(mm)

L1

Z1

Code

Col

Pk/bx

32
40
50

55
49
59

17
17
10

337.125
337.15
337.2

GBW
GBW
G

10/500 £1.31
10/500 £1.31
10/200 £2.26

C1

C2
L1

C1

C2
L1

ACCESS PLUG
L1
Z1

TANK CONNECTOR

For connecting push-fit polypropylene pipe to water
tank. Supplied with 2 sealing washers.
size(mm)

L1

Z1

Code

Col

Pk/bx

32
40
50

24
24
25

7
7
7

311.125
311.15
311.2

GW
GW
G

10/300 £1.31
10/300 £1.31
10/200 £2.26

L1
Z1

28

G - Grey B - Black W - White R - Rustic Brown

Terrain
Terrain Overflow
Overflow

500-Over flow

OVERFLOW PIPE

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Plain-ended.
size(mm)

L

T

Code

Col

Pk/bx

500.75.40

W

20

(min)

19

L

4m

1.1

£1.44

£6.46

size(mm)

L

Z

Code

Col

Pk/bx

19

40

2

510.75

W

50/1000 £1.72

T

STRAIGHT COUPLER
DOUBLE SOCKET
Z

L

BEND DOUBLE SOCKET

911/4° and 135° as standard.
size(mm) angle°
Z2

19
19

911/4
135

Z1

Z2

Code

Col

Pk/bx

12
6

12
6

501.75.91
501.75.135

W
W

50/750 £2.03
50/1100 £2.04

Z1

BRANCH

911/4° as standard.
size(mm) angle°
Z3

Z1

Z2

Z3

Code

Col

Pk/bx

19

911/4

13

13

13

504.75.91

W

10/500 £2.21

size(mm)

A
centre

Z

Code

Col

Pk/bx

19/32

5

5

524.75

W

10/1000 £2.41

size(mm)

A

Code

Col

Pk/bx

19

20

540.75

W

50/2500 £0.63

Z1

Z2

SOCKET REDUCER
A

Z

PIPE FIXING CLIP (PLASTIC)

A

*£ per metre is for estimating purposes only.

G - Grey B - Black W - White R - Rustic Brown

29

Terrain
Terrain Overflow
Overflow

500-Over flow

STRAIGHT TANK CONNECTOR

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

To connect cistern/tank to overflow pipe.
size(mm)

A

L

19

48

69

Code

Col

Pk/bx

511.75

W

10/250 £2.67

A
L

BENT TANK CONNECTOR 90°

size(mm) angle°
19

90

A

Z1

Z2

Code

Col

Pk/bx

48

13

32

502.75.90

W

10/200 £3.17

Code

Col

Pk/bx

512.75

W

10/750 £2.93

Z1

A

Z2

BSP ADAPTOR
SOLVENT-WELD SOCKET
AND 3/4" BSP SOCKET

To connect PVC-u overflow pipe to threaded
components. Solvent-weld socket to receive overflow
pipe. Threaded socket to receive 3/4" BSP male
threaded pipe end.
size(mm)

A

L

19

14

39

A
L

REVERSE NUT CONNECTOR
Z1

To connect PVC-u overflow pipe to threaded
components. Threaded loose nut to receive 3/4" BSP
male threaded pipe end.
size(mm)

A

L

Z1

Code

Col

Pk/bx

19

35

54

25

519.75

W

20/300 £0.80

Code

Col

Pk/bx

590.75

W

5/100 £42.83

A
L

size(mm)

L

19

117

L

TUNDISH

30

G - Grey B - Black W - White R - Rustic Brown

Terrain
Traps
Terrain Traps

600-Traps

BOTTLE ‘P’ TRAP

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

75mm water seal.
Z2

Z1

size(mm)

L

Z1

Z2

32
40

166
170

47
50

62
59




Code

Col

Pk/bx

611.125
611.15

W
W

5/60
5/60

Code

Col

Pk/bx

615.125
615.15

W
W

5/60
5/50

Code

Col

Pk/bx

631.125
631.15

W
W

5/80
5/65

Code

Col

Pk/bx

632.125
632.15

W
W

5/60
5/50

£8.15
£9.72

L

BOTTLE ‘P’ TRAP
SELF RE-SEALING

Supplied with insert to create an air by-pass to protect
water seal.
75mm water seal.

Z2

Z1
L

TUBULAR ‘P’ TRAP
Z2

size(mm)

L

Z1

Z2

32
40

166
170

47
50

62
59




£10.14
£11.85

Mid-point release nut to allow adjustment.
75mm water seal.

Z3

Z1

L

TUBULAR ‘S’ TRAP

size(mm)

L

Z1

Z2

Z3

32
40

136
148

11
11

66
72

29
31




£7.32
£8.45

Mid-point release nut to allow adjustment.
75mm water seal.
size(mm)

L
Z1

Z2

32
40

C

C

(max)

(min)

132
144

48
55

L

Z1

Z2

Z3

136
148

95
107

66
72

66
72




£9.27
£10.84

Z3
C

TUBULAR RUNNING ‘P’ TRAP
Z3

Z2

Universal compression inlet and outlet to suit copper
and plastic pipes.
75mm water seal.

Z1

L

SPIGOT/SOCKET BEND

Z1

WASHING MACHINE TRAP
Z4

Z2
Z3

L

L

Z1

Z2

Z3

32
40

135
145

28
31

66
72

28
31

Code

Col

Pk/bx




645.125
645.15

W
W

5/60
5/45

Code

Col

Pk/bx




607.125.90
607.15.90

W
W

5/135 £2.89
5/110 £3.07

Code

Col

Pk/bx

633.15

W

5/40

£11.21
£12.30

To convert tubular or bottle ‘P’ traps to ‘S’ traps.

Z2

Z5

size(mm)

Z1

size(mm)

Z1

Z2

32
40

27
31

61
65

Ramped entry for washing machine connection to
prevent splash back through waste outlet. Multi-joint
connection for washing machine e.g. plain hose or
reverse nut thread for 19mm and 25mm connection.
size(mm)

L

Z1

Z2

Z3

Z4

Z5

40

177

37

72

31

132

28



£14.65

G - Grey B - Black W - White R - Rustic Brown

31

Terrain
Traps
Terrain Traps

600-Traps

WASHING MACHINE
STANDPIPE

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

To accept flexible waste pipes from domestic washing
machines and dishwashers. Providing necessary air
break to prevent continuous syphoning.

L

size(mm)

A

L

BSP
thread

40

19

501

40



Code

Col

Pk/bx

9250

W

5/75

Code

Col

Pk/bx

651.15

W

5/30

£11.10

A

TUBULAR ‘P’ BATH TRAPS
Z2 Z3
Z1

L

TUBULAR LOWLINE ‘P’
BATH TRAPS

Supplied with flexible overflow hose.
75mm water seal.
Install with 690, 691, 692 or 693 overflow outlets.
size(mm)

L

Z1

Z2

Z3

40

143

2

72

31



£15.66

Supplied with blanking plug-cleaning eye.
50mm water seal.

A
Z2

Z3

size(mm)

A

L

Z1

Z2

Z3

40

172

93

32

141

31



Code

Col

Pk/bx

657.15

W

5/50

Code

Col

Pk/bx

659.15

W

5/25

Code

Col

Pk/bx

690.075

W

5/100 £9.78

£10.15

Z1
L

TUBULAR LOWLINE ‘P’
BATH TRAP WITH OVERFLOW
A
Z3

50mm water seal.
Install with 690 or 691 overflow outlets.
size(mm)

A

B

L

Z1

Z2

Z3

40

172

77

93

32

141

31



£15.72

Z2
Z1
L

Z1

B

BATH OVERFLOW OUTLET
B

Spigot outlet accepts flexible overflow tube.
Supplied with plug and chain.
Plastic

A

A

B

42

57



Chrome-plated

32

A

B

Code

Col

Pk/bx

42

57

691.075

W*

5/100 £10.96

G - Grey B - Black W - White R - Rustic Brown

Accessories

Accessories/Ancillaries
Accessories/Ancillaries

INTUMESCENT PIPE COLLAR

FIXING BOLTS

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

An intumescent sleeve is designed to prevent the
spread of fire and smoke where PVC-u pipes penetrate
a fire rated compartment wall or floor.
size(mm)

weight(g)

50
82
110
160

472
778
1016
2534

fire
rating
2
2
2
2

hrs
hrs
hrs
hrs

Code

Col

Pk/bx

1725.2
1725.3
1725.4
1725.6

S/Steel
S/Steel
S/Steel
S/Steel

5/50
5/50
5/25
5/10

Code

Col

Bx

Heavy duty expanding fixing bolts – pack of 4.

1726

TOGGLE BOLT

PACKING PIECE

1/100 £2.32

To clamp 112 and 115 Boss Connectors while solventwelding.
Code

Col

Pk/bx

9115

Self

1/50

Code

Col

Pk/bx

9104.3
9104.4
9104.6

G
GB
G

1
£3.25
10/200 £3.01
1/100 £5.85

Code

Col

Pk/bx

9105.500

Blue

1/–

£26.60

For use with 140 and 142 Pipe Brackets and 191
Intermediate Support Brackets.
size(mm)
82
110
160

PIPE MARKING TEMPLATE

£41.24
£49.36
£55.60
£106.25

Marking guide for Terrain Soil Systems, access and boss
connection
size(mm)
110

£12.04

G - Grey B - Black W - White R - Rustic Brown

33

Accessories

Accessories/Ancillaries
Accessories/Ancillaries

WC PAN SEAL (SOIL)

SPARE SEAL RINGS (SOIL)

size(mm)

Code

Col

Pk/bx

110

9124

B

1/100 £8.05

Code

Col

Pk/bx

B
B
B
B

1
1
1
1

Code

Col

Pk/bx

9149

Red

1

Code

Col

Pk/bx

9132.125
9132.15
9132.2

B
B
B

1
1
1

size(mm)

Code

Col

Pk/bx

40

9113

B

1

size(mm)

Code

Col

Pk/bx

40

9114

G

1

Code

Col

Pk/bx

Material: EPDM
Suitable for:
– soil system expansion sockets and soil pipe
– use with 126 Adaptors to Cast Iron
– soil fittings (as listed).
size(mm)
110
160
82
110

For fittings
Push Fit Soil (P) range
Push Fit Soil (P) range
109/111/111.S/126/132
103/105/109/111/111.S/126/132/137

Material: EPDM
Allows soil fittings to accept metric copper pipe to BS
2871.
size(mm)
110

SPARE SEAL RING (WASTE)

32
40
50

MANIFOLD PLUG (SPARE)

CLEANING FLUID

£0.47
£0.52
£0.69

£0.96

£1.08

Material: Acetone.
For cleaning PVC-u pipe and fittings before applying
Liquid Weld.
Screw top cans.

9101.125
9101.250

12/24 £6.48
12/24 £8.30

Material: Silicone grease Soluble lubricant.
For lubricating seal rings on expansion fittings.
size(ml)
50
250
500

Code
Tube (silicone)
Tub (silicone)
Tub (soluble)

Col

9136.50
9136.250
9136.500

Pk/bx
10/150 £10.12
10/40 £34.91
10/20 £6.14

For solvent jointing of PVC-u pipes and fittings cap
incorporates integral brush.
size(ml)
125
250
500

34

£5.98

Material: Polypropylene.

125
250

LIQUID WELD

£1.66
£3.14
£2.43
£2.77

Material: EPDM.

size(ml)

LUBRICANT

9116.4
9116.6
9120
9119.B

Suitable for:
– 200 Waste System Fittings to accept pipe
manufactured to BS 5255 and BS 5254.
Acceptable for:
– copper pipe to BS 659 and BS 2781.
size(mm)

SEALING INSERT (SPARE)

COLOUR CODES IN BOLD
AVAILABLE AS SINGLE ITEMS

Material: EPDM
Replacement seal for pan outlet diameter 951/4–121mm.

Code
9100.125
9100.250
9100.500

Col

Pk/bx
12/24 £8.83
12/24 £12.13
12
£22.42

G - Grey B - Black W - White R - Rustic Brown

Design
DesignConsiderations
Considerations
Building Regulations
Requirements
All sanitary pipework and drainage
installations must satisfy the relevant
requirements of Part H1 of the
approved documents to the
England, Wales and Northern
Ireland Building Regulations 1990
and the Building Standards
(Scotland) amendment regulations
1982.
Installations in accordance with BS
EN 12056:2
Code of practice for sanitary
pipework will also meet Building
Regulations requirements.
Ventilation
The discharge stack must be
ventilated in order to prevent
pressure building up within the
system and drawing the water seals
in the traps.
Separate ventilation of branch pipes
is required only if the length and
slope of the branch exceeds the
following dimensions:
Maximum length:
(32mm) 1.7 metres
(40mm) 3 metres
(50mm) 4 metres
Slope: 18-90mm per metre
In such cases, the branch pipe
should be ventilated by a branch
ventilating pipe or an anti-syphon
trap should be fitted.
The Automatic Air Admittance Valve
reduces the number of stack
ventilating pipes required to
penetrate the roof in multiinstallations, without affecting
performance of the drainage
system.
Thermal expansion
Within a solvent-weld system it is
important to make adequate
allowance for thermal movement.
This is most easily achieved by
fitting an expansion ring seal joint
between two fixed solvent-weld
joints.
The expansion gap should be
created by pushing the spigot fully
into the ring seal socket, and
marking the position at the socket
face. Then withdraw the spigot by
10mm.

Check subsequently to ensure that
the expansion gap is not lost during
further installation work.

Branch connections
The distance between the centreline
of the lowest branch connection to
the discharge stack and the invert of
the bend at the foot of the stack
should be in accordance with the
following:

≤ 3 storeys

450mm min.

≤ 5 storeys

750mm min.

5 storeys +

Ground floor
connections
should discharge
direct to drain or
into their own
stack

20 storeys + Ground and
first floor
connections
should discharge
into their own
stack
A branch pipe should not discharge
into a stack in a way which could
cause crossflow into any other
branch pipe.

Access
Sufficient and suitable access must
be provided to enable all pipework
to be tested and maintained
effectively. Access covers, plugs or
caps should be installed in positions
to facilitate use of testing
equipment and removal of
blockages.

Fire Spread
In large commercial or housing
developments, compartmentation
may be required by the Building
Regulations 1991 (Part B 3(2)
Schedule 1). In such cases, any
penetrations by sanitary pipework
must be suitably fire stopped.
Suitable measures include the
containment of pipes from floor to
ceiling in a fire resistant enclosure
(with appropriate fire rating).
In addition, the Terrain Firebrake
Intumescent Sleeve has been
designed to meet the highest fire
stopping requirements.

Pipe support
Pipes must be adequately supported
when installed vertically or
horizontally (to falls).

Working temperatures
Terrain Soil and Waste systems may
be used to convey liquids with a
maximum temperature of 76°C
when subjected to continuous flow.
Intermittent discharges of up to
100°C may occur provided they are
of less than 2 minutes duration.

Chemical discharges
Terrain Soil and Waste systems are
generally resistant to most
commonly used acids and those
that may be discharged to the
public sewer system. The rubber
seals, however, are less resistant and
it is advised that before any
chemicals are conveyed through the
systems, checks are made to
establish their effects on the
product. Refer to BS CP 312 Part 1
Code of Practice for Plastic Pipework
for further information.

35

Fabrication
Service
Fabrication Service
Fabricated specials
Our Fabrication Service is able to
help you by producing Specials
to overcome those tricky
problems that arise in the design
process and on site.

Custom specials
■ These are designed and
fabricated specifically to
meet the unique design
requirements created by
special architectural features.
They can be made not only
on a one-off or small batch
basis, but also in their
hundreds, subject to the
demands of your particular
project.

Raked angle gutter outlet with builtin overshoot guard.

■ They can be produced to
your precise specification in
virtually any size or shape.
Our experienced fabricators are able
to satisfy the requirements of any
project.

Standard specials
■ These are produced by
making slight modifications
to existing Terrain products
to suit frequently occurring
design problems e.g. special
gutter angles for bay
windows, conservatories etc.
■ These products tend to be
required regularly, but in
small quantities.
■ Delivery lead time is usually
the same as for standard
catalogue items.
■ Standard Specials have an F
prefix added to the standard
number and can be found in
our price list.

Multi entry branch designed to suit
customer’s unique requirements.

Gutter offset unit bespoke to fit
individual building dimensions.

36

■ Custom Specials provide
solutions to otherwise
unsolvable design problems.
■ Delivery time depends upon
the complexity of the design
and number required.
■ Examples of situations in
which Custom Specials have
provided solutions include a
PVC drain outlet filter
designed to catch tiny pieces
of gold fillings positioned
beneath the operating area
in a dental surgery; and
specially designed silt traps
to deal with drainage needs
at football grounds.

Pre-fabricated stacks
With increased labour shortages,
the more aspects of the
construction process that can be
dealt with in the factory rather
than on-site, the greater the
benefits for everyone.
Solving problems at the design
and manufacturing stage
ensures ‘right first time’ quality,
increased predictability of
construction time and cost, and
improvements to both site
productivity and health and
safety.
Prefab Stacks consist of soil and
waste pipes and fittings preassembled at the factory to predetermined lengths to provide a
modular soil and vent stack.

Double branches can be made to any
size and angle.

These offer a number of
benefits:
■ Time and labour costs on
site are reduced by minimising the joints to be
made.
■ Highly efficient for
commercial, leisure and
housing projects where
identical plumbing
arrangements are repeated a
number of times.
■ Can be quickly installed,
reducing the need to relocate residents, making
them ideal for refurbishment
work.
Taking a typical house as an
example, stacks are pre-welded
and supplied in four sections:
■ Drain socket to kitchen
connection.
■ Intermediate section
including bathroom
connection.
■ Top section through roof.
■ Connection to W.C.
They are available in four
colours: grey, white, black and
rustic brown. Delivery time is
dependent on quantities
required.
You provide us with architect
drawings and, ideally the
sanitaryware schedule, and we
do the rest.

Fabrication
Service
Fabrication Service
Specials
There are occasions on which
even the most comprehensive
standard product system won’t
meet up to the demands of a
particularly complex design or
installation.
And at times like this, the Terrain
Fabrication Service is uniquely
placed to help you.

TERRAIN FABRICATION
SERVICE
Specialists in
fabrication
The Terrain Fabrication team
works closely with our Technical
Services Department, employing
the latest design and
manufacturing technologies.
Together, they produce high
quality Pre-fabricated Stacks and
Specials, either by making
modifications to existing
products from the Terrain range,
or by conceiving components
from scratch to deal with
particularly awkward problems.
Where fittings are designed
specially, CAD technology is used
to provide accurate drawings,
along with indications of all
relevant dimensions.
Our fabrication team provides
services in two key areas.

Pre-fabrication
Shortage of skilled labour is just
one reason for the growth of
pre-fabrication within
construction. Moving significant
elements of the process from site
to factory provides improvements
in quality, cost and time
predictability, productivity and
safety.
With unrivalled expertise in PVC
and HDPE fabrication systems,
our Fabrication Service has been
helping specifiers and
contractors overcome problems,
both at the design stage and on
site, for over 30 years.

Three easy steps for
our Special Fabrication
Service
It couldn’t be simpler to order
Specials or have a Pre-fabricated
Stack manufactured for you.

2. We will then advise you on
design possibilities and send
you back CAD diagrams, if
necessary, complete with a
part number and price for
your approval.
If the special is being
incorporated into the design
stage of a drainage layout,
be sure to include the
unique part number with
any plans to be passed to
the contractor.
3. You place the order through
your local merchant, stating
the unique product number
and price.
Whether at the design stage or
on site, should you come up
against a problem related to
plumbing and drainage, look no
further than the Terrain Special
Fabrication Service.

1. Send a dimensioned sketch
and specification by email,
fax or post to our Technical
Services Department.

37

Design
Data
Design Data
Table A: Discharge units (DU) Values
Appliance

System III DU l/s

Example

Wash basin, bidet

0.3

10 storey building with

Shower without plug

0.4

4 WC

Shower with plug

1.3

2 WHB

Single urinal with cistern

0.4

2 Baths

Urinal with flushing valve

–

2 Showers
2 Sinks

]

On each floor

Slab urinal

0.2*

Bath

1.3

Kitchen sink

1.3

Dishwasher (household)

0.2

Washing machine up to 6 kg

0.6

2 x 0.4 = 0.8

Washing machine up to 12 kg

1.2

2 x 1.3 = 2.6

WC with 4.0 L cistern

**

WC with 6.0 L cistern

1.2 to 1.7***

2 x 0.6 = 1.2
–––
13.8 x 10 = 138 DU

WC with 7.5 L cistern

1.4 to 1.8***

Domestic Building Use K = 0.5

WC with 9.0 L cistern

1.6 to 2.0***

0.5

Floor gully DN 50

–

Floor gully DN 70

–

Floor gully DN 100

–

2 W/MC

4 x 1.5 = 6.0
2 x 0.3 = 0.6
2 x 1.3 = 2.6

√138

= 5.87 l/s

See Table C and D for capacities
of pipes.

* Per person.
** Not permitted.
*** Depending upon type (valid for WC’s with siphon flush cistern only).
– Not used or no data.

Table B: Typical frequency factors (K)
Usage of appliances

38

K

Frequency factor (K)

Intermittent use, e.g. in
dwelling, guesthouse, office

0.5

Typical frequency factors associated
with different usage of appliances
Table B.

Frequent use, e.g. in hospital,
school, restaurant, hotel

0.7

Calculation of flowrate
Waste water flowrate (Qww)

Congested use, e.g. in toilets
and/or showers open to public

1.0

Special use, e.g. laboratory

1.2

Qww is the expected flowrate of
waste water in a part or in the whole
drainage system where only domestic
sanitary appliances are connected to
the system
Qww = K√∑DU
where:
Qww = Waste water
flowrate (l/s)
K
= Frequency factor
∑DU = Sum of discharge
units.

NB Under no
circumstances
should pipe of
a larger
diameter be
connected to
pipe of a
smaller
diameter in
the direction
of flow.

Design
Data
Design Data
Table C: Stack with only Primary Vent
Stack and
stack vent
DN
60
70
80*
90
100**
125
150
200
*
**

Table D: Stack with Secondary Venting

System I, II, III, IV
Qmax (L/s)
Square #entries Swept entries
0.7
0.5
2.0
1.5
2.6
2.0
3.5
2.7
5.2
4.0
7.6
5.8
12.4
9.5
21.0
16.0

Minimum size where WC’s are connected in system II.
Minimum size where WC’s are connected in system I, III,
IV.

Stack and
stack vent
DN
60
70
80*
90
100**
125
150
200
*
**

Secondary
vent
DN
50
50
50
50
50
70
80
100

System I, II, III, IV
Qmax (L/s)
Square #entries Swept entries
0.9
0.7
2.6
2.0
3.4
2.6
4.6
3.5
7.3
5.6
10.0
7.6
18.3
12.4
27.3
21.0

Minimum size where WC’s are connected in system II.
Minimum size where WC’s are connected in system I,
III, IV.

#Equal branch junctions that are more than 45°, or has a centre line radius less than the internal pipe diameter.
For branch pipe sizing based on System III the following sizing charts should be used.
Limitations for unventilated branch discharge pipes, system III
Appliance

Washbasin, bidet
(30mm diameter trap)

Diameter Min. trap Max length
Pipe
Max.
seal
(L) of pipe gradient number of
depth
from trap
bends
outlet to
stack
m
mm
DN
0
30
75
1.7
2.21)

m
0

Washbasin, bidet
(30mm diameter trap)

30

75

1.1

4.41)

0

0

Washbasin, bidet
(30mm diameter trap)

30

75

0.7

8.71)

0

0

Washbasin, bidet
(30mm diameter trap)

40

Shower, bath

40

50

No Limit2)

1.8 to 9.0

No Limit

Bowl urinal

40

75

3.03)

1.8 to 9.0

Trough urinal

50

75

3.03)

Slab urinal3)

60

50

3.03)

75

3.0

Limitations for ventilated branch discharge pipes, system III

Max.
drop
(H)

Appliance

Washbasin, bidet
(30mm diameter trap)

Diameter Min. trap Max length
Pipe
Max.
seal
(L) of pipe gradient number of
depth
from trap
bends
outlet to
stack
m
mm
DN
30
75
3.0
1.8 Min.
2

Washbasin, bidet
(30mm diameter trap)

40

75

3.0

1.8 Min.

Max.
drop
(H)
m
3.0

No Limit

3.0

Shower, bath

40

50

No Limit2)

1.8 Min.

No Limit

No Limit

Bowl urinal

40

75

3.03)

1.8 Min.

No Limit4)

3.0

Trough urinal

50

75

3.03)

1.8 Min.

No Limit4)

3.0

1.5

Slab urinal3)

60

50

3.03)

1.8 Min.

No Limit4)

3.0

No Limit4)

1.5

40

75

No Limit2)

1.8 Min.

No Limit

No Limit

1.8 to 9.0

No Limit4)

1.5

Kitchen sink
(40mm diameter trap)

No Limit4)

75

No Limit3)

1.8 Min.

No Limit

No Limit

1.5

Household dishwasher or
washing machine

40

1.8 to 9.0

1.8 to 4.4

2

0

Limit2)

1.8 Min.

No

Limit4)

1.8 to 9.0

No Limit

1.5

WC with outlet up to
80mm6) & 14)

75

50

No Limit

1.5

100

50

No Limit

1.8 Min.

No Limit4)

1.5

Kitchen sink
(40mm diameter trap)

40

75

Household dishwasher or
washing machine

40

75

3.0

1.8 to 4.4

No Limit

1.5

WC with outlet greater
than 80mm6) & 14)

WC with outlet up to
80mm6)

75

50

No Limit

1.8 Min.

No Limit4)

1.5

Food waste disposal7)

40 Min.

758)

3.03)

13.5 Min.

No Limit4)

3.0

WC with outlet greater
than 80mm6)

100

50

No Limit

1.8 Min.

No Limit4)

1.5

Sanitary towel
disposal unit

40 Min.

758)

3.03)

5.4 Min.

No Limit4)

3.0

Food waste disposal7)

40 Min.

758)

3.03)

13.5 Min.

No Limit4)

1.5

Sanitary towel
disposal unit

40 Min.

758)

3.03)

5.4 Min.

No Limit4)

1.5

No

Bath drain, Floor drain

50

50

No Limit3)

1.8 Min.

No Limit

No Limit

Floor drain

70

50

No Limit3)

1.8 Min.

No Limit

No Limit

Floor drain

100

50

No Limit3)

1.8 Min.

No Limit

No Limit
0

Floor drain

50

50

No Limit3)

1.8 Min.

No Limit

1.5

5 basins9)

50

75

7.0

1.8 to 4.4

2)

Floor drain

70

50

No Limit3)

1.8 Min.

No Limit

1.5

10 basins9) & 10)

50

75

10.0

1.8 to 4.4

No Limit

0

Floor drain

100

50

No Limit3)

1.8 Min.

No Limit

1.5

Bowl urinals9) & 11)

50

70

No Limit3)

1.8 Min.

No Limit4)

No Limit

4 basins

50

75

4.0

1.8 to 4.4

0

0

More than 8 WC’s6)

Bowl urinals3)

50

75

No Limit3)

1.8 to 1.9

No Limit4)

1.5

Maximum of 8 WC’s6)

100

50

15.0

0.9 to 9.0

2

1.5

30 Max.

50

4.53)

1.8 to 4.4

No Limit4)

0

Up to 5 spray tap
basins9)
1)
2)
3)
4)
5)
6)
7)
8)
9)

Steeper gradient permitted if pipe is less than maximum permitted length.
If length is greater than 3m noisy discharge may result with an increased risk of blockage.
Should be as short as possible to limit problems with deposition.
Sharp throated bends should be avoided.
For slab urinal for up to 7 persons. Longer slabs to have more than one outlet.
Swept-entry branches serving WC’s.
Includes small potato-peeling machines.
Tubular not bottle or resealing traps.
Spray tap basins shall have flush-grated wastes without plugs.

Ventilated discharge branches
Sizes and limitations upon the use of ventilated discharge branches are
given in the tables above. Limitations given in the second table are
simplifications, for further information see national and local regulations
and practice.

Up to 5 spray tap
basins12)

100

50

No Limit

0.9 Min.

No Limit

No Limit

30 Max.

50

No Limit3)

1.8 to 4.4

No Limit4)

0

1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)

For maximum distances from trap to vent (see Figure 8 of BS EN 1205-2:2000).
If length is greater than 3m noisy discharge may result with an increased risk of blockage.
Should be as short as possible to limit problems with deposition.
Sharp throated bends should be avoided.
For slab urinal for up to 7 persons. Longer slabs to have more than one outlet.
Swept-entry branches serving WC’s.
Includes small potato-peeling machines.
Tubular not bottle or resealing traps.
See Figure 9 of BS EN 12056-2:2000).
Every basin shall be individually ventilated.
Any number.
Spray tap basins shall have flush-grated wastes without plugs.
The size of ventilating pipes to branches from appliances can be DN 25 but, if they are
longer than 15m or contain more than five bends, a DN 30 pipe shall be used.
14) If the connection of the ventilating pipe is liable to blockage due to repeated splashing or
submergence, it should be DN 50, up to 50mm above the spill-over of the appliance.

39

Socket
Socket Dimensions
Dimensions
*

100 SOIL SYSTEM – PVC-u (SOLVENT-WELDED)
82, 110 and 160mm pipe and fittings (Fig. 1)
A
82
110
160

B
95
122
175

C
51
51
76

T1

T2

(min)

(min)

3.2
3.2
3.3

3.2
3.2
3.5

AB

Solventwelded

T1

Fig. 1

T2

C

*

100P SOIL SYSTEM – PVC-u (PUSH-FIT)

D

82, 110 and 160mm pipe and fittings (Fig. 2)
A

A(Fig. 2)

D

E

T2

82
110
160

100
132
189

50
58
70

3.2
3.4
4.1

E

Push-fit

Fig. 2

T1

T2

200 WASTE SYSTEM – MuPVC (SOLVENT-WELDED)
32, 40 and 50mm pipe and fittings (Fig. 3)
Nom.
32mm
40mm
50mm

A
36
43
56

B
42
49
62

C

D

24
27
30

53
60
75

E
44
44
44

T1

T2

(min)

(min)

1.8
1.9
2.0

1.8
1.9
2.0

A

B

T2

T2
C

Fig. 3 Solvent-weld jointing

300 WASTE SYSTEM – POLYPROPYLENE (PUSH-FIT)
32, 40 and 50mm pipe and fittings (Fig. 4)
Nom.

A

D

E

T2 T1

32mm
40mm
50mm

35
41
54

41
47
61

20
23
29

1.8
1.9
2.0

A

D

T1

E

T2

Fig. 4 Seal ring jointing

500 OVERFLOW SYSTEM
For cold, non-pressure water. Sockets are for solvent-weld jointing
A

19mm pipe and fittings (Fig. 5)
A
21

B
19

T1

T2

(min)

(min)

1.1

2.0

Fig. 5

T1

B

T2

600 TRAPS SYSTEM
32, 40 and 50mm sockets (Fig. 6)
size

A

B

B
(min)

32mm
40mm

55
65

42
49

Tubular ‘S’ traps limits (Fig. 7)
C maximum C minimum
(trap folded)
Part no.
632.125
632.15

40

C

C

(max)

(min)

136
150

50
60

A

Fig. 6

C minimum
(trap
folded)

Fig. 7

All dimensions in mm unless otherwise stated.

Quality
Quality
Materials
100 and 100P Terrain Soil System
PVC-u
200 Terrain Waste System
MuPVC
300 Terrain Waste System
Polypropylene
500 Terrain Overflow System
PVC-u

BS 6209. Solvent Cement: 125, 250
and 500ml tins.
Terrain systems also comply with
many of the requirements of DIN
and ISO.

Availability
For details of local stockists, please
contact Sales Support on 01622
717811.

600 Terrain Traps
Polypropylene

Further information
and assistance

Quality assurance

Terrain products are backed by a
comprehensive technical advisory
service, available to provide advice
and design guidance on all aspects
of above and below ground
drainage.

Terrain is accredited to BS EN ISO
9001:2000 Quality Management
Systems.

Certifications
The Terrain Automatic Air
Admittance Valve is covered by
British Board of Agrément
Certificate 97/3421.

Standards compliance

Technical services include:
■

Soil and waste schematics and
applicable details.

■

Specification, product
scheduling and estimating.

■

CAD drawings, including
products and application details
on disk.

Terrain systems comply with the
appropriate British and European
Standard and, where applicable,
bear the Kitemark:

Many products are also
available in CAD form for ready
incorporation into design
drawings (Products marked in
the listings). To obtain a disk or
CD Rom in the appropriate
format, simply contact Technical
Services.

BS 4514:2001. PVC-u Soil Systems,
82, 110 and 160mm soil pipes and
fittings (partially replaced with BS
EN 1329-1:2000)
BS 4514 is an Internal Claim only.
Products migrated from BS 4514 to
the new BS EN 1329 standard still
comply fully to BS 4514 but can
only be licensed to BS EN 1329
BS 5254:1976. Polypropylene waste
systems, 32, 40 and 50mm waste
pipe and fitting
BS 5255:1989. MuPVC waste
systems 32, 40 and 50mm waste
pipes and fittings (partially replaced
with BS EN 1329-1:2000)

■

On site advice and problem
solving.

■

Prefabrication and fabrication
design service.

For prompt assistance, please
contact the Terrain Technical
Services Department:
Tel: 01622 717811
Fax: 01622 791049
Tel: 01509 615100
Fax: 08452 760076

G - Grey B - Black W - White R - Rustic Brown

41

Commercial Piping and
Sanitary Systems

Polypipe Terrain
New Hythe Business Park
College Road
Aylesford
Kent ME20 7PJ
Tel: 01622 795200
Fax: 01622 716796

commercialenquiries@polypipe.com
www.polypipe.com
www.terraindrainage.com
Printed on material sourced from sustainable and well managed forests



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