157
ASX 176
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
34
Remove the reinforced gasket assembly (4, 5, 6, 7, 8, 33, 43) together with the LDB/176 grid (70) from the
downstream mouthpiece (4).
35
Remove and replace the O-rings (49) from the downstream cover (3) by lubricating them with synthetic grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
36
Unscrew and remove the screws (33) together with the locking ring (6) from the gasket support (5).
37
Remove the ring (8), reinforced gasket (7) and O-ring (43) from the gasket support (5).
38
Remove grid LDB/176 (70).
39
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.
40
Remove and replace the gasket ring (7) from the gasket ring holder (8).
41
Position grid LDB/176 (70).
42
Place the gasket ring holder (8) and the gasket ring (7) in the gasket holder (5).
43
Insert and fasten the screws (33) together with the locking ring (6) according to the tightening torque:
• DN 2”: tab. 9.70;
• DN 3”: tab. 9.71;
• DN 4”: tab. 9.72;
• DN 6”: tab. 9.73.
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
44
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.
45
Place the reinforced gasket assembly in the downstream cover (3).
46
Place the downstream mouthpiece (4) in the downstream cover (3).
47
Insert and fasten the screws (32) together with the washers (61) according to the tightening torque:
• DN 2”: tab. 9.70;
• DN 3”: tab. 9.71;
• DN 4”: tab. 9.72;
• DN 6”: tab. 9.73.
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
48
Turn the downstream cover assembly (3) and the downstream mouthpiece (4) upside down, placing the down-
stream mouthpiece on an impact-resistant surface.
49
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).
Summary of Contents for ASX 176
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