ITT Engineered Valves BioviZion, Инструкция по установке, эксплуатации и обслуживанию, Страница: 27 / 32

NOTICE:
Inspect diaphragm for any foreign substance prior to installation. Clean as required.
NOTICE:
Ensure that the backing cushion darts are securely inserted into the diaphragm.
8. Press the compressor ring until it is flush with the bonnet.
9. Position the compressor.
If the topworks is Then
Manual Turn the handwheel to a position where the compressor ends are flush
with the bonnet.
Actuated Fully extend the spindle to the over-travel position. This may require ac-
tuator pressure depending on the actuator mode.
10. Orient the diaphragm assembly so the tabs are in-line with the long axis of the compressor.
NOTICE:
Backing cushion darts must be inserted through the diaphragm tabs prior to installation
11. Press the diaphragm assembly into the compressor.
1 2
Diaphragm installation
Figure 26: Diaphragm Installation
12. Rotate the diaphragm assembly 90° until the backing cushion tabs fit into the bonnet recesses.
NOTICE:
The diaphragm assembly should turn freely with minimal resistance. If resistance is felt reverse
diaphragm installation and remove the diaphragm from the compressor slot. Ensure pressure
ring is flush with bonnet flange. Locate the small tab on the side marked EnviZion so that orien-
tation can be maintained if reassembled.
13. Lightly pull the diaphragm away from the compressor to confirm a secure installation.
14. Adjust the diaphragm position until the flange is flush with the bonnet, not deformed, and with the
backing cushion tabs securely engaged into the bonnet recesses.
6.7 Replace the EnviZion Valve Diaphragm
EnviZion and BioviZion Valves Installation, Operation, and Maintenance Manual 25