295
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
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REV. 00
EN
Step Action
1
Unscrew and remove the cap (24).
2
Remove the O-ring (60) from the cap (24) and replace it, taking care to lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
3
Undo and remove the screws (42).
4
Remove the upper cover (17).
5
Remove the diaphragm (16).
6
Unscrew the screw (44), holding the diaphragm holder (61) in place.
7
Remove the diaphragm holder (61).
8
Remove the diaphragm protection disc (55) from the flange (15).
9
Remove and replace the O-ring (56) from the diaphragm protection disc (55), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
10
Unscrew and remove the slam-shut device guide (18).
11
Remove the flange (15).
12
Remove the O-ring (50) and replace it, taking care to lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
13
Remove the O-ring (53) from the bush (18) and replace it, taking care to lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
14
Remove the U-shaped ring (47) from the bush (18) and replace it, taking care to lubricate it with synthetic
grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
15
Fit the flange (15).
16
Insert and secure the slam-shut device guide (18) according to the tightening torque:
• Pressure switch SA 93: tab. 9.122
17
Insert the diaphragm protection disc (55) into the flange (15).
18
Position the diaphragm holder (61).
19
Insert and fasten the screw (44) while holding the diaphragm holder (61) in place, according to the tightening
torque:
• Pressure switch SA 93: tab. 9.122
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
Summary of Contents for REVAL 182
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