ITT Engineered Valves BioviZion, Инструкция по установке, эксплуатации и обслуживанию, Страница: 20 / 32

If the valve is Then
Manual or Actuated 0.50" Tighten the cover clockwise by hand until the red indi-
cation decal is no longer visible and the torque re-
quirement increases rapidly.
Manual 0.75-2.00" Turn the cover clockwise by hand until the lock-pin
fully seats at the weep hole position.
Actuated 0.75-2.00" Turn the cover clockwise by hand until the lock-pin
fully seats at the weep hole position.
NOTICE:
Maintain the handwheel position at partially open while tightening the cover.
NOTICE:
Do not apply excessive force or use leveraging tools to turn the cover or handwheel.
NOTICE:
The lock-pin will rachet as the cover is tightened.
WARNING:
Ensure the lock pin is in the in-board position. This prevents external valve leaks by ensuring
the cover cannot be loosened.
15. Orient air ports for piping.
NOTICE:
The 0.5 inch actuator air port orientation does not swivel.
CAUTION:
Prior to orienting air ports: Fail Closed actuators require instrument air before rotating the ac-
tuator can assembly. Fail Open and Double Acting actuators require instrument air to be re-
moved before rotating the actuator can assembly.
If the valve has a Then
Fail Closed actuator Must apply instrument air before rotating the actuator
can assembly.
Fail Open or Double Acting actuator Must remove instrument air before rotating the actua-
tor can assembly.
4.4 Set the travel stop (hand wheel operated only)
1. Secure the valve body in an upright orientation.
2. Set up a test fixture.
a) Supply air pressure to the system operating pressure to one side of the valve.
b) Cap the other side of the valve and install a venting rubber or plastic tube.
c) Hold the tube in a container of water.
3. Lightly tighten the handwheel.
4. Turn the handwheel screw counter clockwise until the handwheel can be removed.
4.4 Set the travel stop (hand wheel operated only)
18 EnviZion and BioviZion Valves Installation, Operation, and Maintenance Manual