ITT Engineered Valves BioviZion, Инструкция по установке, эксплуатации и обслуживанию, Страница: 16 / 32

Figure 19: Mount and Turn Positions
9. Rotate the cover clockwise until the studs are snugly engaged with the bonnet.
10. Inspect the orientation of the bonnet, body, backing cushion and diaphragm to ensure they are
aligned. If required, loosen the cover and reorient components before tightening.
11. Tighten the cover clockwise by hand until the red indication decal is covered or nearly covered and
the torque requirement increases rapidly.
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.
12. Tighten the cover screw until fully seated. The cover may need to be turned counter-clockwise
slightly if interference with the lock screw is incurred.
4.3 Assemble the EnviZion Valve
WARNING:
Valve shipped with thermal compensation system dis-engaged. Tighten valve bonnet per in-
struction manual prior to pressurizing the valve. For additional information go to www.eng-
valves/envizion.html or contact ITT at 717-509-2200.
4.3 Assemble the EnviZion Valve
14 EnviZion and BioviZion Valves Installation, Operation, and Maintenance Manual