173
ASX 176
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
32
Undo the screws (32) together with the washers (61).
33
Remove the downstream mouthpiece (70).
34
Remove the reinforced gasket assembly (4, 5, 6, 7, 8, 33, 43) from the mouthpiece (70).
35
Unscrew and remove the screws (33) together with the locking ring (6) from the gasket support (5).
36
Remove and replace gasket ring support (8), gasket ring (7) and O-ring (43) from gasket support (5).
37
Replace the O-ring (43) and lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
38
Remove and replace the gasket ring (7) from the gasket ring holder (8).
39
Place the gasket ring holder (8) and the gasket ring (7) in the gasket holder (5).
40
Insert and fasten the screws (33) together with the locking ring (6) according to the tightening torque:
• DN 2”: tab. 9.75;
• DN 3”: tab. 9.76;
• DN 4”: tab. 9.77;
• DN 6”: tab. 9.78.
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
41
Remove and replace the O-ring (41) from the downstream cover (3), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
42
Place the reinforced gasket assembly (4, 5, 6, 7, 8, 33, 43) in the mouthpiece (70).
43
Place the downstream cover (3) in the mouthpiece (70).
44
Insert and fasten the screws (32) together with the washers (61) according to the tightening torque:
• DN 2”: tab. 9.75;
• DN 3”: tab. 9.76;
• DN 4”: tab. 9.77;
• DN 6”: tab. 9.78.
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
45
Insert the diaphragm plug assembly (9, 10, 11, 50) into the downstream cover (3).
NOTICE!
Take care not to damage the O-ring (48), the I/DWR (52) and the plug profile (9).
46
Fit the spring (54).
47
Place the upstream cover (2) and the upstream mouthpiece (1) in the plug (9).
NOTICE!
Take care not to damage the O-ring (48) and the I/DWR (52).
Summary of Contents for ASX 176
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