ITT Engineered Valves BioviZion, Инструкция по установке, эксплуатации и обслуживанию, Страница: 25 / 32

CAUTION:
Metal surfaces may be hot.
7. Lift the bonnet assembly from the valve body.
6.6 Replace the BioviZion Valve Diaphragm
1. Disassemble the valve.
For more informaiton see
6.4 Disassemble the BioviZion Valve on page 22 .
2. Secure the bonnet in the inverted orientation.
3. Position the topworks to the closed position, extending the valve spindle.
4. Lift the edges of the backing cushion to detach it from the compressor ring.
5. Turn the diaphragm 90° in either direction to disengage from the compressor.
6. Lift the diaphragm and backing cushion up off the bonnet.
7. Replace with a new diaphragm and backing cushion.
NOTICE:
Inspect the diaphragm sealing surface and do not use the diaphragm if the seal surfaces are
defective.
NOTICE:
Inspect diaphragm for any foreign substance prior to installation. Clean as required.
8. Press the compressor ring (1) until it is flush with the bonnet.
9. Center the backing cushion (3) on the stud side of the diaphragm (4).
10. Orient the diaphragm assembly so the short tabs (5) are in-line with the long axis of the extended
compressor.
11. Press the diaphragm assembly into the compressor.
6.6 Replace the BioviZion Valve Diaphragm
EnviZion and BioviZion Valves Installation, Operation, and Maintenance Manual 23