Amtrol Pre Pressurized Water System Tanks Well X Trol Users Manual AMT 627_WXT Brochure #56935.qxp

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WELL-X-TROL PROFESSIONAL
Pre-Pressurized

Water System
Tanks

WELL-X-TROL Professional
®

revolutionizes
the industry
WELL-X-TROL® Professional redefined the industry with its advanced engineering and
innovative product design including the pre-pressurized well tank, sealed-in air charge,
and unique water chamber design. With proven performance since 1963, WELL-X-TROL
Professional continues to deliver unparalleled results making it the most trusted choice
of professionals in today’s market.WELL-X-TROL Professional offers many unique features
that result in consistent, reliable performance, including design elements that prevent tank
corrosion and reduce wear and tear on the well pump.

Features and Benefits

Exclusive butyl diaphragm, along with the 100% corrosion resistant virgin polypropylene
liner, are secured by a positive hoop ring seal for added strength and reliability. This
totally integrated system outperforms other types of water chamber designs.
The stainless steel air valve is welded rather than threaded to prevent loss of air pressure.

The finest quality, custom mill steel is used in the deep drawn dome
for extra strength while keeping tank weight to a minimum.

More choices mean more flexibility

WELL-X-TROL Professional offers more options and sizes
than any other well tank manufacturer, including both
vertical and horizontal designs, and sizes ranging
from 2 gallons to 119 gallons so you can
configure a system that’s right for any
application.

First on Industry Safety
Standards

WELL-X-TROL Professional tanks were the
first to meet all industry standards for quality
and safety. The butyl diaphragm in all models
meets EPA requirements for potable water as
defined in the Safe Drinking Water Act of
1986. The entire tank which includes the
virgin polypropylene liner, butyl diaphragm,
and acceptance fittings for a 100% corrosion
resistant water reservoir is listed by NSF
International Standard 61.

Advanced

design features

continue to set industry standards
■ Stainless steel air valve is welded in position rather than mechanically
threaded to prevent loss of air pressure and to minimize stress on the well’s
pump system. It also carries a tamper-evident warning label.
■ Deep-drawn steel domes offer twice the strength of rolled steel while
minimizing weight.
■ Unique positive hoop ring seal secures diaphragm and liner for added
strength and reliability.
■ Heavy duty butyl diaphragm features seamless construction for uniform
strength and flexibility. It conforms exactly to the shell configuration without
stretching, creasing, or forming bubbles or corners that could trap water or
sediment. Butyl is the best known elastomer to prevent air loss.

Dome
Hoop

Diaphragm

■ Heavy duty butyl diaphragm is extremely resistant to bacterial growth and
meets FDA requirements for potable water supply.
■ Virgin polypropylene liner provides a 100% corrosion resistant, non-metallic
rigid water reservoir that is listed by NSF International Standard 61.
■ Stainless-steel system connection withstands aggressive water.

Liner

■ Exclusive welding process eliminates interior rough spots and sharp edges
which prevent damage to the diaphragm and liner.
■ Each finished tank is pressure tested for safety.
■ Each finished tank is pre-pressurized to the most common pump cut-in
pressure.
■ Exterior appliance-like finish looks attractive while protecting the tank from
the elements.

Dome
Stainless-steel
System
Connection

Stand

esp

(Effective System Protection):

maximum system output with
minimal pump starts
The ESP sizing procedure covers modern residential water-use habits, increased off-peak
demands and the general increase in water use that have occurred over the past twenty-five years.

ESP sizing is designed to reduce pump wear and tear, and reduce energy consumption by keeping
pump starts to a minimum.

Choose the amount of protection you need.
ESP I: Tank selection is based on approximately one minute minimum pump running time.
This is recommended for pumps up to 3/4 H.P.
ESP II: Tank selection is based on approximately two minute minimum pump running time.
This is recommended for 3/4 H.P. or larger pumps.

ESP Sizing Table
OPERATING PRESSURE - PSIG
PUMP DISCHARGE
RATE GPM (Approx.)
5

20/40

ESP I
30/50

40/60

20/40

ESP II
30/50

40/60

WX-202

WX-202

WX-202

WX-202XL

WX-205

WX-205

7

WX-202

WX-202

WX-202XL

WX-205

WX-250

WX-251

10

WX-202XL

WX-205

WX-205

WX-251

WX-251

WX-255

12

WX-205

WX-250

WX-250

WX-251

WX-255

WX-255

15

WX-250

WX-250

WX-251

WX-255

WX-302

WX-350

20

WX-251

WX-251

WX-255

WX-350

WX-350

(2) WX-255

25

WX-251

WX-255

WX-302

(2) WX-251

(2) WX-255

(2) WX-302

30

WX-255

WX-302

WX-350

(2) WX-255

(2) WX-302

(2) WX-350

35

WX-302

WX-350

WX-350

(2) WX-302

(2) WX-350

(2) WX-350

40

WX-350

WX-350

(2) WX-255

(2) WX-350

(2) WX-350

(3) WX-302

WELL-X-TROL Professional

tank
operation
time-tested design

1

WELL-X-TROL Professional has a sealed in air chamber that is pre-pressurized
before it leaves our factory. Air and water do not mix.

2

When the pump starts, water enters the
WELL-X-TROL Professional. Only usable
water is stored.

3

When the pressure in the chamber
reaches cut-out pressure, the pump
stops. The WELL-X-TROL Professional
is filled.

When water is demanded, pressure
in the air chamber forces water into
the system. Since WELL-X-TROL
Professional consistently delivers the
maximum usable water, minimum
pump starts are assured.

4

WELL-X-TROL Professional

residential
models
In-Line Models
Model
No.

Dimensions
Diameter
Height
(ins)
(ins)

Total
Volume
(gals)

Max.
Accept.
Factor

System Drawdown
20/40 30/50
40/60
(gals)
(gals)
(gals)

Shipping
Wt. (Vol.)
lbs (cu ft)

WX-101

8

12 5/8

2.0

0.45

.8

.7

.6

5 (0.6)

WX-102

11

15

4.4

0.55

1.8

1.5

1.3

9 (1.2)

WX-103

11

22 1/4

7.6

0.42

3.1

2.6

2.2

15 (1.8)

WX-104

15 3/8

17 3/4

10.3

1.00

4.1

3.5

3.0

20 (2.6)

WX-200

15 3/8

22

14.0

0.81

5.6

4.8

4.1

22 (3.3)

Precharge Pressure for WX-101 & WX-102 is 20 PSIG and Sys. Conn. is 3/4" NPTM.
Precharge Pressure for WX-103 is 30 PSIG and Sys. Conn. is 3/4" NPTM.
Precharge Pressure for WX-104 and WX-200 is 30 PSIG and Sys. Conn. is 1" NPTM.
Maximum Working Pressure is 125 PSIG and Maximum Working Temperature is 200° F.
WX-101 and WX-102 models available with Ultra TUF-KOTETM exterior coating option.

Stand Models
Model
No.

Dimensions
Diameter
Height
(ins)
(ins)

Total
Volume
(gals)

Max.
Accept.
Factor

System Drawdown
20/40 30/50 40/60
(gals)
(gals)
(gals)

Shipping
Wt. (Vol.)
lbs (cu ft)

WX-104-S

15 3/8

19 1/4

10.3

1.00

4.1

3.5

3.0

23

WX-201

15 3/8

23 7/8

14.0

0.81

5.6

4.8

4.1

25

WX-202

15 3/8

31 5/8

20.0

0.57

8.0

6.8

5.9

33

WX-202XL

15 3/8

38 1/4

26.0

0.44

10.5

8.8

7.6

36

WX-203

15 3/8

46 1/2

32.0

0.35

—-

10.9

9.4

43

WX-205

22

29 5/8

34.0

1.00

13.7

11.6

10.0

61

WX-250

22

36

44.0

0.77

17.7

15.0

12.9

69

WX-251

22

46 3/4

62.0

0.55

24.9

21.1

18.2

92

WX-255

22

56 3/8

81.0

0.41

32.6

27.5

23.8

103

WX-252

22

62 1/4

86.0

0.39

34.6

29.2

25.3

114

WX-302

26

47 1/4

86.0

0.54

34.6

29.2

25.3

123

WX-350

26

61 7/8

119.0

0.39

47.8

40.5

35

166

Precharge Pressure for WX-104-S thru WX-203 is 30 PSIG and Sys. Conn. is 1" NPTF.
Precharge Pressure for WX-205 thru WX-350 is 38 PSIG and Sys. Conn. is 1 1/4" NPTF.
Maximum Working Temperature is 200° F. Maximum Working Pressure for all models except WX-252 is 125 PSIG.
Maximum Working Pressure for WX-252 is100 PSIG.
All models available with Ultra TUF-KOTETM except WX-104-S, WX-201, and WX-252.
All models except, WX-104S, WX-201, WX-252 are available with Pro-Access.

Underground Models
Model
No.

Dimensions
Height
Diameter
(ins)
(ins)

Total
Volume
(gals)

Max.
Accept.
Factor

System Drawdown
20/40 30/50 40/60
(gals)
(gals) (gals)

Shipping
Wt. (Vol.)
lbs (cu ft)

WX-200-UG

15 3/8

22

14.0

0.81

5.6

4.8

4.1

22

WX-202-UG

15 3/8

30

20.0

0.57

8.0

6.8

5.9

30 (4.9)

WX-250-UG

22

33 3/8

44.0

0.77

17.7

15.0

13.0

60 (9.8)

WX-251-UG

22

44 1/8

62.0

0.55

24.9

21.1

15.3

83 (13.9)

Precharge Pressure for WX-202-UG is 30 PSIG and Sys. Conn. is 1" NPTF Coupling.
Precharge Pressure for WX-205-UG and WX-251-UG is 38 PSIG and Sys. Conn. is 1 1/4" NPTF Coupling.
Maximum Working Pressure is 125 PSIG and Maximum Working Temperature is 200° F.

WELL-X-TROL Professional

specialty residential
models
Pump Stand Models
Height
(ins)

Model
No.

Dimensions
Width
Length
(ins)
(ins)

Total
Volume
(gals)

Max.
Accept.
Factor

System Drawdown
20/40 30/50 40/60
(gals) (gals) (gals)

Shipping
Wt. (Vol.)
lbs (cu ft)

WX-105-PS

11

10 9/16 18 1/4

5.3

0.80

2.1

1.8

1.6

13

WX-200-PS

16

15 3/8

14.0

0.81

5.6

4.8

4.1

29

20 7/8

Precharge Pressure is 30 PSIG and Sys. Conn. is 3/4" NPTM Fitting for 103-PS and 105-PS; and 1" NPTF Coupling for 200-PS.
Maximum Working Pressure is 125 PSIG and Maximum Working Temperature is 200° F.

Offset Connector Models
Dimensions
Diameter Height
(ins)
(ins)

Model
No.

WX-202-OC

15 3/8

29

Total
Volume
(gals)

Max.
Accept.
Factor

20.0

.57

System Drawdown
20/40
30/50 40/60
(gals)
(gals)
(gals)

8.0

6.8

5.9

Shipping
Wt. (Vol.)
lbs (cu ft)

32 (5.0)

1” Barb Connection. 30 PSIG Precharge Pressure. 100 PSI Maximum Working Pressure. 200° (F) Maximum Working Temperature

Space Saver Model
Model
No.

Height
(ins)

WX-202-H 28 5/8

Dimensions
Width
Length
(ins)
(ins)

15 3/8

15 1/4

Total
Volume
(gals)

Max.
Accept.
Factor

20.0

0.57

System Drawdown
20/40 30/50 40/60
(gals) (gals) (gals)

8.0

6.8

5.9

Shipping
Wt. (Vol.)
lbs (cu ft)

33 (4.9)

Precharge Pressure is 30 PSIG. System connection is 1" NPTF (straight coupling connection).
Maximum Working Pressure is 125 PSIG. Maximum Working Temperature is 200° F.

Specialty Options
A new improved paint finish available only on WELL-X-TROL tanks.
This new paint has been re-formulated for outdoor applications where acids, salts
and moisture can harm regular paint. It is crack proof and impermeable to moisture.

PRO Access Stainless Steel System Connection piped through the stand is available
on most WELL-X-TROL models. Indicate PRO Access when ordering.

AMTROL has

innovative ways
to help you grow your business

Water Treatment Technologies

®

Hydrogen Sulfide Removal System

Arsenic Removal System

Iron Removal System

Water Softening and Filtration

®

Hydronic Technologies

Boiler Expansion Tanks

Water Heater Expansion Tanks

Indirect-Fired Water Heaters

Ask for Quality. Ask for AMTROL®.

w w w . a m t r o l . c o m

Corporate Headquarters
1400 Division Road
West Warwick, RI 02893
Telephone: 401-884-6300
Fax: 401-884-5276

Part# 9015-516 MC# 4380 (7/04) © 2004 AMTROL Inc.

AMTROL Canada, Ltd.
275 Shoemaker Street
Kitchener, Ontario N2E 3B3
Telephone: 519-748-1138
Fax: 519-748-4231

®

WELL-X-TROL is a registered trademark of AMTROL Inc.



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