303
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
24
Undo the screws (35).
25
Take out the pressure switch unit.
NOTICE!
For the maintenance procedure of the pressure switch assembly, please refer to par. 9.4.13.
26
Remove the cup (15).
27
Remove the O-ring (42) from the cup (15) 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.
28
Undo and remove the screws (34).
29
Remove the intermediate body (13) from the flange (9).
30
Extract the stem (6) taking care not to damage it.
31
Remove the seeger ring (28) from the flange (9).
32
Remove the bush (10).
33
Remove the O-ring (41) from the bush (10) 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.
34
Remove the I/DWR ring (25) from the bush (10) and replace it, taking care to lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement I/DWR ring, clean the retaining slots with a cleaning solution.
35
Fit the bush (10).
NOTICE!
Take care not to damage the O-ring (41).
36
Fit the seeger ring (28).
37
Fit the stem (6).
NOTICE!
Lubricate the stem surface with silicone grease.
38
Fit the intermediate body (13).
39
Fit the cup (15).
40
Fit the pressure switch unit.
41
Insert and fix the screws (35) according to the following tightening torque:
• DN 1”: tab. 9.122
42
Insert and fix the side screws (39) into the pressure switch according to the following tightening torque:
• DN 1”: tab. 9.122
43
Fit the gasket (29) and the cover (119).
44
Insert and fix the screws (22).
45
Put the spring (48) and spring support (4) in place.
Summary of Contents for REVAL 182
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