KEYSTONE FIGURE V11 BUTTERFLY VALVE
InstallatIon, operatIon and MaIntenance Manual
Please read these instructions carefully
CAUTION - indicates that it may lead to injuries
or damages on the properties.
WARNING - indicates that it may lead human
body to serious injuries.
DANGER - indicates that it may lead human
body to death.
TECHNICAL DATA
PIPE FLANGE BOLT TIGHTENING TORQUE
Recommended torque
Bolt size Nm
M12 x 1.75 17
M16 x 2 41
M20 x 2.5 81
M24 x 3 139
M27 x 3 194
M30 x 3.5 281
M33 x 3.5 358
M36 x 4 481
Bolt size Recommended torque
U.N.C Ft-lbs
⅝ 30
¾ 50
⅞ 80
1 123
1⅛ 195
1. Torques based on 100 Mpa induced stress
infastener threads.
2. Values are based on steel bolting well
lubricated with a heavy graphite and oil
mixture.
3. For cadmium plated fasteners multiply
torque x0.75.
4. For zinc plated fasteners multiply torque
x1.40.
5. Recommended torques are a minimum.
Formaximum torque multiply torque x 1.05.
INSTALLATION
The valves are shipped with flange surface
protection. Before installing the valve, remove
the protection.
CAUTION
The valve should be installed in the slight opened
position whether the gap between disc edge and
body flange face is about 10 mm to insure that the
seat and disc are not damaged during installation.
Particular care should be taken with valves
equipped with "single acting" actuators.
Failure to insure proper handling may result in
damage to the valve.
If the pipe is lined, confirm that the disc rotation
does not contact the lining during the opening
stroke. Failure to confirm that the disc rotation
dose not contact the lining may result in damage
to the valve.
The Figure V11 valves are bi-directional and will
control flow equally well in either direction.
Flange accommodation: The Figure V11
is designed by
JIS5K/10K code
Pressure rating: 5 kg/cm
2
, 10 kg/cm
Temperature range: -40°C - 120°C
CARRIAGE AND STORAGE
2
1. Carriage
The valve shall be carried safely not to be
impacted or affected by other object. Especially,
Figure 1
the wheel of operator and disc edge shall be
protected by any means.
2. Storage
The valve shall be stored in the higher place
which is able to prevent from being submerged
in water and keep off from penetration of
rainwater or cover it with waterproof cloth,
which Keystone valve LLC. does not provide, to
avoid being wetted.
When worker installs the valve, remove
the dust and extraneous substances after
disassembling the pallet and protective cover.
www.valves.emerson.com © 2017 Emerson. All rights reserved.
VCIOM-02830-EN 14/05
KEYSTONE FIGURE V11 BUTTERFLY VALVE
InstallatIon, operatIon and MaIntenance Manual
Installation in new construction using welding
type flanges
1. With the disc in the slight opened position,
align and center the companion flange bolt
holes to the body alignment holes.
2. Assemble the body and flanges with the
flange bolting and make-up the bolting.
3. Using the flange-body-flange assembly for
fit-up and centering to the pipe.
4. Tack weld the flanges to the pipe.
5. Remove the flange bolting and valve
assembly from between the flanges.
CAUTION
Do not finish weld the flanges to the pipe with the
valve bolted between the flanges as this will result
in serious heat damage to the valve seat.
6. Finish welding the flanges to the pipe and
allow the flanges to cool completely before
proceeding.
MAINTENANCE
Routine maintenance or lubrication is not
required.
Be sure to be familiar with following facts
before installing valves.
Tie up with rope when handling the butterfly
valve assembly for Figure V11.
Dismantling the valve from pipe (Figure 5)
1. Be sure that the fluid and pressure in
valve and pipe must be removed before
dismantling.
2. Close the valve.
3. Cut off the supply of the electric power,
hydraulic or pneumatic pressure depending
on the kinds of operators attached and
disconnect the electric cable, hydraulic or
pneumatic hoses.
4. Release the flange bolt in order to
disassemble the valve assembly.
Disassemble the operator ahead when
necessary.
5. Dismantle the valve after open the flanges
sufficiently using tools.
6. Disassembly the operator in the condition of
fastening the valve assembly on vise.
WARNING
Make sure that the fluid and hydraulic or
pneumatic pressures in valve, operator and pipe
are removed, and then dismantle the disc in the
position of full close after taking safety measures.
Figure 2
Figure 3
1. Tie up feature with rope when handling the
valve assembly vertically. (Figure 2) Lift the
valve in the condition of tying upper neck
with ropes. Tie up the front and rear side of
valve with two ropes, because the rope may
be removed when useone rope.
2. Tie up feature with rope when handling the
valve assembly horizontally. (Figure 3, 4) Lift
the valve in the condition of tying upper and
lower neck with ropes. Beware that the rope
on the lower neck may not be removed or
valve assembly may not be tilted.
DANGER
Use the rope made by synthetic fiber only
taking into account of valve weight and safety
andpayattention that paint on the valve does not
peel. When worker lifts the valve assembly, which
isequipped hand wheel including gear box, in the
condition of tying hand wheel with rope, he(she)
shall comply with the specific method which
manufacturer provides because the stem may be
distorted orthe cover may be damaged.
Figure 4
Figure 5
2
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