GROVE API 6D Fabricated Gate Valve IOM

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Installation, Operation and Maintenance Manual

GROVE® API 6D
FABRICATED GATE VALVES

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

TABLE OF CONTENTS
GROVE® API 6D
FABRICATED GATE VALVES
16” – 42” CLASS 150-600 MODEL “G7” .................................................................................... 1
SCOPE ...................................................................................................................................... 2
NAMEPLATE INFORMATION ................................................................................................... 2
SAFETY INFORMATION ........................................................................................................... 3
STORAGE ................................................................................................................................. 3
INSTALLATION ......................................................................................................................... 4
HYDROSTATIC TESTING ......................................................................................................... 6
OPERATION.............................................................................................................................. 7
ROUTINE MAINTENANCE ........................................................................................................ 9
DRAINING AND FLUSHING VALVE.........................................................................................10
LOW TEMPERATURE PRECAUTIONS ...................................................................................12
LUBRICATING HANDWHEEL AND OPERATOR ASSEMBLY .................................................14
LUBRICATING SEATS .............................................................................................................15
RECOMMENDED LUBRICANTS AND SEALANTS ..................................................................15
TROUBLESHOOTING ..............................................................................................................17
APPENDIX................................................................................................................................19

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

16” – 42” CLASS 150-600 MODEL “G7”

*
*
*
*
*
*

*
*
*

ITEM
1.
2A.
2B.
3A.
3B.
4.
5.
6.
7.
8.
9.
9A.
9B.
9C.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
105.
109.
110.
111.
112.
113.
114.
115.

DESCRIPTION
BODY
SEAT LUBE FITTING
STEM BACKSEAT FITTING
DRAIN FITTING
VENT FITTING
SEAT ASSEMBLY
GREASE O-RING
SEAT O-RING
WAVE SPRING
GATE
STEM ASSEMBLY
STEM
STEM HEAD
STEM PIN
BONNET SEAL
BONNET
BONNET STUD
BONNET NUT
PEDESTAL
SLS SEAL
LANTERN RING
PRESSURE RING
UPPER ADAPTER RING
PACKING FITTING
ASSEMBLY
PACKING PLUG
YOKE TUBE
STUD
DRAIN PLUG
GASKET
BOLT
INDICATOR ROD
ROD WIPER
STEM PROTECTOR
STOP RING NUT
SET SCREW
BEVEL GEAR OPERATOR
WITH HANDWHEEL
PLASTIC PLUG

*RECOMMENDED SPARE PARTS

Figure 1 - Grove “G7” Fabricated Gate Valve 16”-42” Class 150-600.

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

SCOPE
This manual covers the Grove Model “G7”
Fabricated Gate Valve product line. Drawings
shown are typical. The design of specific valves
may vary slightly from the drawings.
The Grove “G7” Fabricated Gate Valve is a
through-conduit slab gate valve. It utilizes two
floating seats to provide a complete seal with the
gate. The full bore design has the same
pressure drop as an equivalent length of pipe
and allows passage of all types of scrapers
(pigs). The valve stroke is established by a stop
ring located on the stem and the stem backseat.
The backseat is an added safety feature which
allows for a seal between the stem and bonnet
when in the open position. It also provides a
means of stem retention in the body. The valve
can be repaired while in line (pressure removed
and valve drained).

The valve does not depend on lubricant for a
seal in normal operation. However,
lubricants/sealants can be injected to promote
smooth operation. Seat sealant can also be
injected to affect a seal in an emergency should
the seats become damaged by foreign matter.
Excess body pressure is automatically vented to
the upstream conduit by the self relieving seat.
External body cavity relief systems are not
required.
Grove “G7” Fabricated Gate Valves are
available in sizes, pressure classes, materials,
and coatings to meet industry requirements.
Valves are available with
lubrication/packing/drain extensions and
stem/yoke tube extensions.

The stem is sealed by spring-loaded lip seals. In
an emergency, plastic packing can be injected
into the packing box to affect a temporary seal
while the valve is under pressure.

NAMEPLATE INFORMATION
ITEM
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
()
*

STAMP
Nominal Valve Size
Maximum Cold Working Pressure (psig)
*Serial Number
API Class Designation
Minimum Temperature in °F
Maximum Temperature in °F
*Bill of Material Number
Body Material Designation
End Material Designation
Gate Material Designation
Seat Material Designation
Stem Material Designation
Seal Material Designation
(Maximum Operating Pressure at 250°F – if Applicable)
(API Monogram - if Applicable)
Model Designation
(Marking for Non-Standard End-to-End - if Applicable)
Date of Manufacture
(Impact Test Temperature - if Applicable)

7
2
14

5
6
8
9
10
11
12
13

Description in parenthesis may be left blank in some
cases.
Most important data for obtaining replacement parts.
Nameplate may vary.

Installation, Operation and Maintenance Manual

3
18
17

Figure 2 – Grove Fabricated Gate Valve
Nameplate

IOM-GRO-GATE-FABRICATED-G7

SAFETY INFORMATION
Valves shall be operated and maintained
strictly in accordance with these procedures.
Operation or maintenance outside these
procedures constitutes abuse of the product
and voids all warranty and claims.
When special operation is required, a formal
written request to the company must be
made for approval to operate in this manner
if warranty and product liability is to be
maintained.
The personnel working on the installation shall
always use safety precautions set forth by the
law and any regulations required by the
employer. The maintenance personnel doing the
repairs should be well trained and familiar with
all the information contained in this manual.

The valves shall be appropriately used for the
purpose they are built for. Transport, unpacking,
lifting, and connections to the different types of
systems (electric, pneumatic, hydraulic systems,
etc.) shall be made by expert and qualified
personnel.
Do not carry out any actions when the results
are uncertain. This includes lifting, repairing, or
removing and reapplying pressure.
Do not remove or tamper with protections or
safety devices of any types.
Do not use the valve before the efficiency of all
safety devices has been restored.

STORAGE
After Grove “G7” Fabricated Gate Valves are
assembled and tested, the valves are left in the
open position, seats and bores are greased and
end protectors are installed. These measures
will provide protection for approximately six
months. The following care should be taken
when storing valves:
1. Make sure the valve end connection covers
remain in place during storage.

the stem adapter should be covered to avoid
accumulation of water and debris.
If long-term storage is required, the valve should
be conditioned by following Cameron procedure
X-150771-01.
Ensure adequate end connection covers are in
place. Request a copy of X-150771-01 from the
Cameron Valves & Measurement group.

2. If the valve does not have an operator and the
valve will be stored outside, the exposed stem or

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

INSTALLATION
Grove “G7” Fabricated Gate Valves are bidirectional and have no preferred pressure end.
Overhaul and repair is easier with the valve in
the "stem vertical" position. Before handling the
valve, clearly identify and record the nameplate
information. Check its weight with the packing
list or relevant documents and use suitable
handling equipment. When handling or installing
the valve, keep the valve in the open position
whenever possible to prevent foreign matter
damage to the gate and seat sealing surfaces.
The valve should be lifted in such a way that the
body supports the load. This can be done via
lifting holes on the body ribs as illustrated in
Figure 3. Special rigging will be necessary with
installed automated system.

Butt Weld End Valves should be welded into
the line by qualified welders, using qualified
procedures. Cameron's Valves & Measurement
group recommends that all welding procedures
and welders be qualified per ASME Section IX.

CAUTION: Do not use handwheels or other
protruding parts of the valve, gearbox, or
actuator to lift the valve. During handling,
use care to avoid damaging the end
connection faces, fittings, and accessories.
The end connection necks on the valve body
are suitable places to attach lifting slings, if
lifting holes are not an option.

3. Electric welding equipment is preferred for all
installations. However, if only oxygen-acetylene
welding equipment is available, extreme caution
should be taken regarding excess welding
temperature to prevent damage to sealing
components of the valve.

Flange End Valves may be bolted into line
using two open boxed end wrenches. Power
wrenches may be required for larger valves.

5. Make sure temperature of the body/seat area
does not exceed 250°F. (Check with Tempil®
stick or equivalent).

1. Use solvent to clean grease or rust inhibitor
from the gate and/or bore of the valve.

6. Avoid rapid application of excess welding
material. Weld each end of the valve with a
continuous bead using a 1/8" maximum
diameter electric welding rod.

2. Make sure the line flanges are properly
aligned and will not distort or bind the valve. Use
new flange gaskets.
3. Bolt and nut threads should be lubricated to
obtain proper loading of bolt, as well as the
bearing surface of the nut.

CAUTION: Keep weld end valves open while
installing/welding into the line. Weld slag
created during the welding process could
damage gate sealing surfaces.
1. Use solvent to clean grease or rust inhibitor
from the gate and/or bore of the valve.
2. Make sure the line and valve weld bevels are
properly aligned and will not bind the valve.

4. Weld with the gate in "Full Open" position.

7. Keep the valve in the "Full Open" position
until the line has been thoroughly cleaned of
weld slag in the valve bore and line (by pigging
and/or flushing) before changing the position of
the gate.

4. Finger-tighten all nuts first.
5. Tighten bolts, using the crisscross method,
and torque each bolt to ASME or gasket
manufacturer’s specification.

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

Figure 3 – Various Lifting Techniques

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

HYDROSTATIC TESTING
When Grove “G7” Fabricated Gate Valves are
installed in a piping system that requires
hydrostatic testing of the adjoining pipe, follow
these procedures to minimize any damage that
could occur to the sealing surface and seat
seals inside the valve.

CAUTION: Do not exceed pressures listed on
the table below. The Maximum Allowable
Working Pressure (MAOP) is marked on the
nameplate.
4. Upon completion of hydrostatic testing, the
valve should be returned to the fully open
position before removing the test fluid from the
piping system. The test fluid in the body cavity
can be drained through the body drain port
located in the lower portion of the valve. (See
Draining Valve, Page 10).

CAUTION: Ensure that all test fluids contain
corrosion inhibitors and that they are
compatible with the valve seat and seal
materials.
1. The valve should be in the fully open position
when the injection of test fluids begins. This will
allow any pipeline debris to be flushed through
the valve bore and out of the piping.

5. Once the valve body has been completely
drained, close the body bleed fitting. (See
Draining Valve, Page 10). After securing the
safety cap back on the drain fitting, return the
valve to required operating position, either fully
open or fully closed.

2. Once the piping system has been purged of
debris and the system has been filled completely
with the test fluid, the gate should be placed in
the partially open position to allow test fluid into
the body cavity of the valve.

6. The valve seat pockets should be filled with
an approved valve lubricant to displace any test
fluid from behind the seats.

3. The valve is now ready to be hydrostatically
pressure tested.

Pressure Class

Hydrostatic Shell
psig
(barg)

Hydrostatic Seat
psig
(barg)

150

450

(31)

325

(23)

300

1125

(78)

825

(57)

600

2225

(154)

1650

(114)

900

3350

(231)

2450

(169)

Figure 4 – Test Pressures per ASME B16.34

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

OPERATION
The Grove “G7” Fabricated Gate Valve may be
operated with a handwheel or may be power
actuated. With either mode of actuation, open
and close the valve completely. DO NOT
THROTTLE FLOW.
The valve, in good condition, will seal at low
pressures up to the maximum allowable working
pressures as a block valve, single-block-andbleed valve or a double-block-and-bleed valve.
Valves equipped with handwheels are CLOSED
by turning the handwheel CLOCKWISE until a
stop is felt. The indicator rod at the top of the
valve will move down (towards the valve bore),
as the handwheel is turned CLOCKWISE.

2. Slowly lower the BGO onto the valve stem
until the top of the valve stem makes contact
with the bottom of the stem bushing.
3. Carefully rotate the BGO until the threads
engage.
4. Slowly lower and rotate (counter-clockwise for
Left Hand thread, clockwise for Right Hand
thread) the BGO onto the valve stem until the
base of the BGO rests on the mounting plate.
5. If the orientation of the BGO is incorrect at
this point it is possible to rotate the BGO into the
correct position by turning the hand-wheel/pinion
shaft until the proper orientation is achieved.

The valve is OPENED by turning the handwheel
COUNTER-CLOCKWISE until it contacts the
stop. The indicator rod at the top of the valve will
move up (away from the valve bore), as the
handwheel is turned COUNTER-CLOCKWISE.

6. Install and tighten the BGO mounting bolts.

When valves are equipped with power actuators,
the movement of the indicator rod will indicate if
the valve is being opened or closed. Make sure
all accessories recommended by the actuator
manufacturer are installed before valve actuator
installation. Should any maintenance be
necessary, obtain the part number from the
unit's nameplate and contact Cameron's Valves
& Measurement group or the nearest service
representative.

8. Install the coupling, key or other means to
connect the two shafts.

Actuator Mounting
Actuators should only be installed by trained and
experienced personnel. Follow the actuator
manufacturer's instructions for installation on the
valve and making of electrical connections. The
following outlines basic procedures when not
provided by the actuator manufacturer:
Side Mounted Actuator on a Bevel Gear
Operator (BGO)
1. Suspend the BGO above the valve with a
strap or chain in such a way that the base of the
BGO is parallel with the mounting plate on the
valve yoke.

Installation, Operation and Maintenance Manual

7. Suspend the actuator so that the output shaft
is in-line and parallel to the bevel gear operator
pinion shaft.

9. Slide the actuator onto the BGO and install
the bolts.
10. Ensure that the valve is not seated in the
down or closed position prior to installing and
tightening actuator mounting bolts.
11. Tighten bolts securely following the actuator
manufacturer’s instructions.
Direct Mounted Actuator with a Removable
Thrust Base
For non-removable stem nut or bushing:
1. Remove the thrust base from the actuator.
Refer to the manufacturer’s instructions or
drawings for guidance.
2. Suspend the THRUST BASE above the valve
with a strap or chain in such a way that the base
of the THRUST BASE is parallel with the
mounting plate on the valve yoke.
3. Slowly lower the THRUST BASE onto the
valve stem until the top of the valve stem makes
contact with the bottom of the stem bushing.

IOM-GRO-GATE-FABRICATED-G7

4. Carefully rotate the THRUST BASE until the
threads engage.
5. Slowly lower and rotate (counter-clockwise for
LH thread, clockwise for RH thread) the
THRUST BASE onto the valve stem until the
base of the THRUST BASE rests on the
mounting plate.
6. Install and tighten the mounting bolts that
attach the Thrust Base to the valve.
7. Reinstall the actuator on the Thrust Base
verifying that the proper orientation is achieved
and tighten the mounting bolts that attach the
actuator to the Thrust Base.

Normal Acting gate (most common)
1. Move the valve to the OPEN position (stem
up).
2. Thread the stop nut onto the stem until the
distance between the bottom of the stop nut and
the top of the stem nut in the actuator is equal to
the total stem travel. The valve Operator
Interface drawing (sometimes called a “Top
Works” drawing), shows the stem travel from the
OPEN to the CLOSED position.
3. Install the set screws and tighten securely.
Reverse Gate (unusual)
1. Move the valve to the OPEN position (stem
down).

For removable stem nut or bushing:

2. Suspend the actuator above the valve with a
strap or chain in such a way that the base of the
actuator is parallel with the mounting plate on
the valve yoke.

2. Thread the stop nut onto the stem and thread
down until it contacts the stem nut in the
actuator. The valve Operator Interface drawing,
sometimes called a “Top Works” drawing, shows
the stem travel from the OPEN to the CLOSED
position. Use this to set the proper opening
limits.

3. Slowly lower the actuator over the valve stem
until the base of the actuator rests on the
mounting plate.

3. Inspect the bore to ensure proper gate to seat
bore alignment. Install the set screws and
tighten securely.

4. Verify that the proper orientation is achieved.

Procedure for Setting Limit Switches

5. Ensure that the valve is not seated in the
down or closed position prior to installing and
tightening actuator mounting bolts6.

Unless otherwise specified, set the electric
actuator switches as follows:

1. Remove the stem nut from the actuator.

6. Install and tighten the actuator mounting bolts.
7. Carefully thread the stem nut onto the valve
stem and rotate the nut until it is engaged with
the drive sleeve.
8. Rotate the actuator hand-wheel in the open
direction until the stem nut is fully engaged in
the drive sleeve.
9. Install and tighten the stem nut locking nut.
10. Use a center punch to stake the threads of
the stem nut locking nut to the actuator drive
sleeve.

Procedure for Setting Down Stop
Install the stem thread stop nut as follows for
gear boxes/operators with no limit switches:

Installation, Operation and Maintenance Manual

Normal Acting gate (most common)
1. OPEN POSITION- Move the valve to the
OPEN (stem up) position. Back off one-quarter
stem turn. Follow the actuator manufacturer's
instructions for setting the limit switch. The limit
should be set so that the stem backseat does
not engage the bonnet landing.
2. If the actuator has a torque switch, set it at no
more than the Block and Bleed Torque value
from the table. However, the limit switch must
stop the valve at the top of the stroke. Do not
use the torque switch to stop the valve in the
open position. Do not let the actuator stall out on
the up or back seated position.
3. CLOSED POSITION-Follow the actuator
manufacturer's instructions for setting the limit
switch so that the actuator stops as the valve
reaches the CLOSED (stem down) position. The
valve Operator Interface drawing (sometimes

IOM-GRO-GATE-FABRICATED-G7

called a “Top Works” drawing), shows the stem
travel from the OPEN to the CLOSED position.
Use this to set the proper closing limits.

the stroke. Do not use the torque switch to stop
the valve in the open position.

4. Keeping the gate in the CLOSED position,
thread the stop nut onto the stem and thread
down until it contacts the stem nut in the
actuator. Back off the stop nut one-quarter (1/4)
turn. Install the set screws and tighten securely.

5. CLOSED POSITION- Move the valve to the
CLOSED (stem up) position. Back off onequarter (1/4) stem turn. Follow the actuator
manufacturer's instructions for setting the limit
switch. The limit should be set so that the stem
backseat does not engage the bonnet landing.

Reverse gate (rare)
1. OPEN POSITION- Follow the actuator
manufacturer's instructions for setting the
limit switch so that the actuator stops as the
valve reaches the OPEN (stem down)
position.

6. The valve Operator Interface drawing
(sometimes called a “Top Works” drawing),
shows the stem travel from the OPEN to the
CLOSED position. Use this to set the
proper closing limits. Do not let the actuator stall
out on the up or back seated position.

2. The valve Operator Interface drawing
(sometimes called a “Top Works” drawing),
shows the stem travel from the OPEN to the
CLOSED position. Use this to set the proper
opening limits. Inspect the bore to
insure proper gate to seat bore alignment.

Verify that the maximum allowable torque switch
setting of the actuator is not exceeded. This
setting may be indicated by the use of a torque
limiter plate on the torque switch. If no limiter
plate is installed on the torque switch then the
maximum torque value will need to be
determined from supporting documentation that
came with the actuator, nameplate information,
or by contacting the actuator manufacturer.

3. Thread the stop nut onto the stem
and thread down until it contacts the stem
nut in the actuator. Back off the stop nut
one-quarter (1/4) turn. Install the set
screws and tighten securely.
4. If the actuator has a torque switch, set it at
no more than the Block and Bleed Torque
value from the table. However, the limit
switch must stop the valve at the bottom of

WARNING: Exceeding a limiter plate setting
can result in reaching or exceeding stall
torque of the actuator motor or maximum
allowable torque for actuator. This can result
in equipment damage and personnel injury.
At no time should a limiter plate be removed
without written approval from the actuator
manufacturer.

ROUTINE MAINTENANCE
The following outlines the minimum scheduled
maintenance required for Grove “G7” Fabricated
Gate Valves to promote trouble-free service and
long life. Some applications may require more
maintenance. Visually inspect every six (6)
months.

Cameron Valves & Measurement service
representative.

See troubleshooting section (Page 17) for a list
of remedies to troubles that may arise. If
remedies are not sufficient, contact local

CAUTION: Verify compatibility of any
sealant, lubricant, or anti-freeze with the trim
of the valve and product in the line.

Installation, Operation and Maintenance Manual

Operate the valve once a month, if practical. A
full open closed cycle is preferable. Operate a
partial cycle as a minimum.

IOM-GRO-GATE-FABRICATED-G7

DRAINING AND FLUSHING VALVE
After lengthy service, there is a possibility of
water, line scale, sediment or other foreign
matter collecting in the lower body cavity. It is
advisable to periodically drain the valve to
discourage development of conditions that can
possibly lead to valve damage or impair the
operation of the valve. If draining is not regularly
scheduled, it is strongly recommended to drain
the valve at these times:

NEVER remove the grease fitting with the
valve under pressure!
1. Carefully remove the vented safety cap of the
lower drain grease fitting, Figure 5. Contact your
local Cameron Valves & Measurement service
representative for further assistance, if needed.
2. Back out the stinger of the pressure releasing
tool until it stops.

1. After hydrostatic testing.
2. After cleaning the line.
3. When valve cannot be fully opened or closed.
(Foreign matter in the bottom of valve can not
only prevent placing valve in a fully closed
position, it can also cause permanent damage to
the internal sealing surfaces).
CAUTION: A safety pressure releasing tool is
required to simplify the procedure of
releasing body pressure or draining the
valve. To release body pressure or to drain
valve, first place the valve in the closed
position.
WARNING: To avoid injury by liquid or
foreign solid matter, individuals should be
safely positioned away from the direction of
the outlet port of the grease fitting. (If the ball
check is not holding pressure, pressure will
blow through the safety holes in the cap.)
Back-up the seat grease fitting using a
wrench so only the safety cap will be
removed from the fitting. Carefully remove
the safety cap from the seat grease fitting.

Installation, Operation and Maintenance Manual

3. Install the pressure releasing tool onto the
uncapped grease fitting. The ball check on the
grease fitting should still be closed, Figure 6.
4. Carefully screw the stinger of the releasing
tool- (until the ball check in the grease fitting is
pushed off its seat, Figure 7). This will allow the
valve to drain or to release body pressure.
5. After completion, back out the stinger of the
pressure releasing tool to allow the ball check in
the grease fitting to reseat and permit easy
removal of the pressure releasing tool.
6. Replace safety cap on the lower drain grease
fitting.
For flushing of body, install a valve on the drain.
Use internal procedures to flush water, antifreeze, etc. from the body.
WARNING: Do not replace yoke tube plastic
plug with a metal plug/fitting. There is a risk
of pressure becoming trapped in the yoke
tube which could cause injury.

IOM-GRO-GATE-FABRICATED-G7

Figure 5 - Grease Fitting

Figure 6 – Pressure Releasing Tool
as Installed (Ball Check Closed).

GREASE FITTING

STINGER

Figure 7 - Pressure Releasing Tool with Stinger
Screwed In (Ball Check Open and Venting).
Part Number K021960 for ½” fittings.
Part Number K032287 for 1” fittings.
Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

LOW TEMPERATURE PRECAUTIONS
Prior to exposure to freezing temperatures it is
highly recommended the valve be drained.

freezing. It is also advisable to inject a sufficient
amount of valve lubricant into the grease fittings
of the valve and operator (if present) prior to
extended cold temperature exposure.

Water that may be trapped in the body cavity
could freeze and impair the operation of the
valve or damage the valve.

Trapped water should be drained from stem
extensions. Some stem extensions in the field
are equipped with plastic plugs that can be
removed to drain trapped water from the piped
extension.

If the valve has a grease fitting in the lower
drain, a sufficient amount of anti-freeze injected
into the body cavity via the lower drain grease
fitting will prevent accumulated water from

Volume of Anti-freeze (Ethylene Glycol) to Prevent Freezing (Gallons)
Minimum
Expected
Temperature
Percent
Anti-Freeze
16”
150
16”
300
16”
600
18”
150
18”
300
18”
600
20”
150
20”
300
20”
600
24”
150
24”
300
24”
600
30”
150
30”
300
30”
600

Body
Volume
in the
Open
Position

Body
Volume
in the
Closed
Position

6.5

8.8

10.4

5.5

6.5

8.9

10.5

5.0

6.0

7.5

10.3

12.3

4.0

5.5

7.0

8.5

11.6

13.7

3.5

4.0

5.5

7.0

8.5

11.7

13.7

3.5

4.5

5.0

7.0

9.0

11.0

14.8

17.8

3.5

4.5

5.5

7.0

9.0

11.0

15.6

18.2

4.0

5.0

6.0

8.0

10.0

12.5

17.5

20.6

5.0

6.0

7.5

9.5

12.5

15.0

21.0

25.1

5.0

6.0

7.5

10.0

12.5

15.5

22.0

25.9

5.5

7.0

8.5

11.0

14.5

17.5

24.8

29.6

7.0

9.0

11.0

14.5

18.5

23.0

31.3

38.2

8.0

10.5

12.5

16.5

21.0

26.0

37.6

43.7

11.0

13.5

16.5

22.0

28.5

34.5

48.7

58.5

13.5

17.0

20.5

27.5

35.5

43.5

59.7

73.1

18°F
(-8°C)

13°F
(-11°C)

7°F
(-14°C)

-8°F
(-22°C)

-28°F
(-33°C)

-55°F
(-48.5°C)

18%

23%

28%

37%

48%

59%

2.0

2.5

3.0

4.0

5.0

2.0

2.5

3.0

4.0

2.5

3.0

3.5

2.5

3.5

2.5

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

LOW TEMPERATURE PRECAUTIONS Continued
Volume of Anti-freeze (Ethylene Glycol) to Prevent Freezing (Gallons)
Minimum
Expected
Temperature
Percent
Anti-Freeze
36”
150
36”
300
36”
600
42”
150
42”
300
42”
600

Body
Volume
in the
Open
Position

Body
Volume
in the
Closed
Position

42.5

60.8

71.4

46.0

56.5

78.4

95.1

45.0

58.5

72.0

98.5

121.3

26.0

34.5

44.5

55.0

70.3

92.4

29.0

35.0

46.5

60.0

73.5

94.2

124.3

36.5

44.0

58.0

75.5

92.5

118.5

156.6

18°F
(-8°C)

13°F
(-11°C)

7°F
(-14°C)

-8°F
(-22°C)

-28°F
(-33°C)

-55°F
(-48.5°C)

18%

23%

28%

37%

48%

59%

13.0

16.5

20.0

26.5

34.5

17.5

22.0

27.0

35.5

22.0

28.0

34.0

17.0

21.5

22.5
28.5

Volume of Anti-freeze (Ethylene Glycol) to Prevent Freezing (Liters)
Minimum
Expected
Temperature
Percent
Anti-Freeze
16”
150
16”
300
16”
600
18”
150
18”
300
18”
600
20”
150
20”
300
20”
600
24”
150
24”
300
24”
600

Body
Volume
in the
Open
Position

Body
Volume
in the
Closed
Position

33.4

39.4

33.9

39.9

39.1

46.7

44.1

51.8

44.2

51.9

56.2

67.4

59.2

68.8

66.3

78.1

79.5

94.9

83.2

98.1

93.7

112.2

118.7

144.7

18°F
(-8°C)

13°F
(-11°C)

7°F
(-14°C)

-8°F
(-22°C)

-28°F
(-33°C)

-55°F
(-48.5°C)

18%

23%

28%

37%

48%

59%

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

LOW TEMPERATURE PRECAUTIONS Continued
Volume of Anti-freeze (Ethylene Glycol) to Prevent Freezing (Liters)
Minimum
Expected
Temperature
Percent
Anti-Freeze
30”
150
30”
300
30”
600
36”
150
36”
300
36”
600
42”
150
42”
300
42”
600

Body
Volume
in the
Open
Position

Body
Volume
in the
Closed
Position

142.5

165.6

107

131

184.5

221.3

103

133

164

226.1

276.7

100

130

160

230.0

270.2

101

134

173

213

296.6

360.0

106

129

170

221

271

372.8

459.3

130

168

207

266.2

349.9

109

132

175

226

278

356.7

470.6

107

137

166

220

285

350

448.7

592.8

18°F
(-8°C)

13°F
(-11°C)

7°F
(-14°C)

-8°F
(-22°C)

-28°F
(-33°C)

-55°F
(-48.5°C)

18%

23%

28%

37%

48%

59%

LUBRICATING HANDWHEEL AND OPERATOR ASSEMBLY
Handwheel Operated ValvesConnect a grease gun containing NLGI grade 2
petroleum base grease to the 1/8" Alemite type
grease fitting on the bearing housing. Pump in a
small amount of grease. DO NOT OVERFILL.
Bevel Gear OperatorsBevel gear operators are supplied by other
manufacturers. Consult particular manufacturer's
instructions. If these are not available, lubricate
the same as Handwheel Operated Valves
above.
Motor Operated ValvesMotor operators are supplied by other
manufacturers. Consult particular manufacturer's
instructions.

Installation, Operation and Maintenance Manual

Lubricating Stem
1. Remove the stem protector and inspect the
stem thread for any damage.
2. Clean any visible debris prior to applying
grease to the stem thread, see Recommended
Lubricants and Sealants.
3. Cycle the valve to distribute the grease
throughout the threading and stem nut in the
operator.
4. If operation is smooth, remove any debris
build-up on the stem protector and reinstall onto
the operator.

IOM-GRO-GATE-FABRICATED-G7

LUBRICATING SEATS
Grove “G7” Fabricated Gate Valves are
equipped with seat injection ports. For dry/gas
service, lubricate once a year.

5. Connect the grease gun to the seat lubrication
fitting(s). (Both sets may be lubricated at the
same time).

1. Only use grease guns that are equipped with
a pressure gage.

6. Pump the sealant into the seat. Once the
pressure rises above the valve rated pressure,
hold for three (3) minutes to promote filling of the
grease grooves.

2. Some seat sealants become very stiff or
viscous in cold weather. It may be difficult to
pump some sealants under these conditions.
It is recommended that the grease gun be kept
in a heated area until it is ready to be used. If
this is not possible, contact the local Cameron
Valves & Measurement service representative
for low temperature sealant recommendations.

Note: Grease guns can develop pressures far
in excess of the valve working pressure. Use
only grease guns, which are equipped with
pressure gages. Do not exceed the valve
maximum allowable working pressure.
7. Stroke the valve to spread the sealant on the
seat surfaces. (Indicator rod should move
approximated 1" or 25 mm).

3. Move the valve to the closed position.
4. Carefully, remove the safety caps on the seat
lubrication fitting using a wrench.

8. Release the pressure in the grease gun and
remove it from the grease fitting. The fitting ball
check should prevent the release of the valve
grease pressure.

WARNING: Back up the seat grease fitting
using a wrench so only the safety cap will be
removed from the fitting. Carefully remove
the safety cap from the seat grease fitting.
NEVER remove the grease fitting with the
valve under pressure!

9. Install the fitting safety cap and tighten
securely.
10. Repeat for the other seat. Both seats may be
lubricated at the same time, if desired.

RECOMMENDED LUBRICANTS AND SEALANTS
TRIM

NORMAL SEAT
LUBRICANT

STEM/BEARING
LUBRICANT

EMERGENCY
SEAT SEALANT

EMERGENCY
STEM PACKING

G-20
(Aromatic Hydrocarbons and
refined products, non-sour)

WKM #58G or
Val-Tex 700

NLGI Grade 2
Bearing Grease

WKM #58G

WKM #113 or Jim
Ray Tiger Pak "FF"

G-21
(Aromatic Hydrocarbons and
refined products, sour)

Val-Tex 700

NLGI Grade 2
Bearing Grease

WKM #102

WKM #109

G-23
(Low temperature produced
hydrocarbons, sour)

Val-Tex 50

WKM #1

WKM #103

WKM #109

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

RECOMMENDED LUBRICANTS AND SEALANTS

Continued

PRODUCT

MANUFACTURER

WKM #1
WKM #58G
WKM #102
WKM #103
WKM #109
WKM #113
WKM #115

Cameron Valves & Measurement
Operation Services
8820 Meldrum Ln
Houston, TX 77075
713-946-2122
Fax: 713-331-5813

Val-Tex 700
Val-Tex 50

Val-Tex
10600 Fallstone Road
Houston, TX 77009
800-627-9771
281-530-4848
Fax: 281-530-5225

Jim Ray Tiger Pak FF

Jim Ray
10645 Richmond Ave. #130
Houston, TX 77042
713-785-5055
Fax: 713-785-5534

Figure 10 – Adapter Fitting,
Part Number K296434.

Figure 8 – Screw/Prime Hand
Gun, Part Number 2122495-01.
Exact configuration may vary
from illustration.

Figure 9 – Bucket-Type Gun,
Part Number K065189. Exact
configuration may vary from
illustration.

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

TROUBLESHOOTING
Trouble

Probable Cause

Remedy

The stem seal is leaking due to a
contaminated stem.

Cycle the valve several times.

The stem seal is leaking due to
damage or abnormal wear.

Close the valve to energize stem
backseat.

The stem seal is leaking due to
damage or abnormal wear.

Inject plastic packing as follows:
Remove the packing fitting screw
and install a packing injection gun1
loaded with the proper plastic
injectable. Refer to the
"Recommended Lubricants and
Sealants" table.
Using the packing gun, pump plastic
to energize the packing set. 40005000 psig (275-345 barg) is usually
sufficient. DO NOT EXCEED 10,000
psig (690 barg).
WARNING: THE INJECTION
PRESSURE IS TWICE THE
HYDRAULIC GAUGE PRESSURE.
Hold for at least 3 minutes. Repressurize, as needed.
Remove the packing gun.
Lubricate the packing fitting screw
thread with a good grade of bearing
grease and thread it into the fitting.
Tighten securely but do not exceed 7
ft-lbf (9.5 N-m) of torque.
See “Appendix” for more information.

The safety cap or bleed plug screw is
loose.

Tighten the safety cap or bleed plug
screw.

The bonnet seal is leaking.

Ensure that the bonnet nuts are
tightened properly. Contact local
Cameron Valves & Measurement
service representative if leakage
persists.

Leakage is occurring around the
stem, yoke tube drain, or yoke tube
to bonnet joint.

The grease fitting or bleed plug is
leaking.
The valve is leaking around the
bonnet to body joint.

A restriction is present in the valve
bore.

The valve is hard to operate.

The gate is not properly aligned with
the seats.

The lubrication is not sufficient.

HANDWHEEL OR BEVEL GEAR
OPERATED VALVES:
Open the valve fully by turning the
handwheel counter-clockwise.
Tighten securely.
MOTOR OPERATED VALVES:
Make sure the operator limit switches
are set correctly. Do not exceed
Maximum Allowable Stem Torque
and Thrust.
Lubricate the seats per the
“Lubricating Seats” section.
Remove the stem protector to clean
and grease the stem.
Increase torque within allowable
limit.

Contact local Cameron Valves & Measurement Service Representative for current part number.

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

TROUBLESHOOTING continued
Trouble

(continued)
The valve is hard to operate.

The valve will not fully close.

Probable Cause

Remedy

Ice is present in the yoke tube,
handwheel unit, or operator.

Apply heat to melt ice. (Do not
exceed 250°F)

Line bind is present. (Pipeline
bending moments distorting the
valve body).

Relieve the bind or moment on the
valve.

Excessive stem packing pressure
causing drag.

Relieve the excess packing pressure
through the injection fitting using
stinger tool.

Debris build up in the body.

Return valve to the open position.
Flush the body cavity through the
drain. See “Draining Valve” section.

Debris build up in the seats.

Flush the seat pockets with lubricant
per “Lubricating Seats” section.

Excessive stem packing pressure
causing drag.

Relieve the excess packing pressure
through the injection fitting using
stinger tool.

Improperly sized motor operator.

Replace with properly sized motor
operator.

Improperly wired electric operator.

Verify wiring following instructions
and schematics provided by the
operator manufacturer.

The bearings need lubrication.

Lubricate the operator per the
manufacturer’s instructions.

The stem, bearing or gear unit is
broken or damaged.

Replace broken or damaged parts.

Valve is not fully closed.

Fully close the valve. Turn the
handwheel CLOCKWISE.

Seat or seat seals are damaged.

Inject Seat Sealant per the
“Lubricating Seats” section. Replace
parts.

Motor operator will not actuate the
valve.

Valve operation is erratic.

The valve seats will not seal.

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

APPENDIX
INJECTING PACKING
1. Grove “G7” Fabricated Gate Valves use a
self-adjusting stem seal identified by the
following tag on the packing fitting. These
require only periodic inspection.

discoloration around the bonnet-yoke tube
joint. If there is no evidence of leakage, no
maintenance is required.
3. If leakage is evident, inject plastic packing
as follows:

2. Inspect the valve for evidence of stem
leakage. This might be determined by paint

STICK METHOD
GUN METHOD
Note: Packing is not damaged by cold. However, keep plastic packing in a warm place (like a heated room
or vehicle cab) until ready for use to keep pliable.
•

•

Remove the
injection stinger
from the packing
fitting
CAUTION:
Pressure may be
trapped in the
packing box
Apply a good grade
of earing grease to
the threads

•

Remove the injection stinger from the packing
fitting. CAUTION: Pressure may be trapped in the
packing box

•

Assemble the packing
gun with the appropriate
plastic packing

•

Connect the gun to the
packing fitting

•

Apply 4000-5000 psig (275345 barg) to the packing gun.
Thick packing may require
8000-9000 psi (551-620 bar).
CAUTION: The WKM style
packing gun applies twice the
hand pump pressure

•

Place a stick of packing into the fitting and
screw in the stinger until it seats.

•

Repeat as necessary. Use screw torques
as follows:

•

Hold for several minutes

▪

•

Add more plastic if the pressure drops

•

Repeat until the packing pressure holds steady

•

Do not exceed 10,000 psi (689 bar)

•

Remove the packing gun

•

Dig out any excess packing
from the packing fitting

•

Apply a small amount of
bearing grease to the packing
fitting screw

•

Install the packing fitting screw
and tighten

•

3-4 ft-lb (40-50 in-lb, 4-5.5 N-m) for
WKM packings

▪

4-5 ft-lb (50-60 in-lb, 5.5-7 N-m) for
thick packings

▪

Do not exceed 7 ft-lb (60 in-lb, 9.5 Nm) as this may exceed the 10,000 psig
(689 barg) rating of the fitting

Back out the screw until the threads show,
this allows the bail check to seat

CAUTION: Apply only enough packing to stop
the leak

Installation, Operation and Maintenance Manual

IOM-GRO-GATE-FABRICATED-G7

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