Installation
Identify the valves with the packing list and applicable
documents against the name plate for proper identification.
Check the total equipment weight and use suitable handling
devices to safely install the valves.
Prior to installation, ensure the valve drain and bleed plugs are
installed and tightened securely and the valve is in the full open
position.
Valves shall be installed in a manner that will not support the
weight of the line and line expansion and strain is isolated
external to the valve. Install the valve with the preferred inlet,
marked by the red flange and marking on the valve body,
toward the pump or pressure source. Position the valve in
piping to allow clearance and access to the operator. The valve
should be installed that the drain and bleed plugs are
accessible and cartridge removal is possible for in-line service
and maintenance. The preferred orientation is with the drain
plug to be at the lowest point of the valve.
Flanged valves should be installed using the proper gasket (not
supplied) and procedure recommended by National and
International Standards/Codes specified for the installation.
Butt Weld ends shall be welded in accordance to proper
Standard Code welding procedures.
Piping should be thoroughly flushed with the valve in the open
position prior to valve operation and the body drained after
testing to remove test fluid and debris that may have
accumulated in the body during testing.
Install the valve operator according to the manufacturer’s
guidelines. Refer to pneumatic, hydraulic or electric actuators
section for setting or adjusting the open and close stops for the
operator.
Operate (dry run) the valve by cycling from open to closed
position several times to test and ensure the proper operation
of the valve.
Operations
Prior to valve operation, make sure that the valve has been
installed in the pipeline with the preferred inlet upstream in the
normal flow direction. The valve is bi-directional and will seal in
either direction. Operating the valve in a preferred or normal
flow direction will provide optimum sealing performance and
seal life, especially in dirty or contaminated fluids.
The valve operates 90° from the full open to full closed
position. The valve is a torque seated valve with the maximum
closing torque for the appropriate pressure is applied at the
end of the close cycle. Under high differential pressures, the
un-seating torque may be as high as the seated torque.
Pneumatic, Hydraulic or Electric Actuators
In the case when the actuator has been installed prior to
receipt or installation, check that air, hydraulic and electrical
supply lines are connected per the manufacturer’s
specifications and instructions. Using the manual override,
place the valve in the mid open position. Verify that the
actuator mounting bolts are securely tightened. Activate the
OPEN button or switch and make sure that the actuator travel
counterclockwise towards the open position. If it does not,
make the appropriate piping or wiring changes and/or
adjustments.
In the case when an actuator has not been previously installed
on the valve, mount the actuator and tighten the nuts on the
studs securely to the proper torque specification per Table 1.
Install the pneumatic or electrical wiring and cable to the
actuator according to the manufacturer’s instructions. After
installation of the operator on to the valve, rotate the position of
the ball approximately 1⁄4 turn to determine if the ball moves to
the closed position. If the ball does not completely close the
port, adjust the actuator stop to reposition the valve’s closed
position. Turn the actuator to the open position and observe if
the Hemi moves completely to the open position. A full port
opening should be visible. If the Hemi does not completely
move to the open position, adjust the actuator stop to
reposition the valve’s open position. The Hemi should be in the
full open position at zero degrees.
Maintenance
The valve does not require periodic lubrication or maintenance
to provide continuous trouble-free service. The valve is a
torque seated valve and maximum rated torque must be
applied in the closed position. If the valve does not seal
properly, or if there are difficulties opening or closing the valve,
it may be due to foreign material deposits within the cartridge
of the valve body. Cleaning may be required in order to remove
the debris or foreign objects.
HCV
Valve
CAUTION:
Do not attempt to operate the valve past the full open
and closed position. Adjust the operator stops to engage prior to
the valve integral stops, as the integral stops in the valve are not
intended to be used as the operator stops.
NOTE:
Do not over torque in the closed position. Over torque
may cause damage to the valve and void the warranty.
2 IOM HCV 001 09-2019A
