PIETRO FIORENTINI REVAL 182, Use And Maintenance Instructions

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281
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR | MAINTENANCE AND FUNCTIONAL CHECKS | REV. 00
EN
Step Action
1 Loosen the nut (27).
2
Completely release the spring (22) by turning the adjusting screw (28).
3 Remove the adjusting screw (28) together with the nut (27).
4 Remove the cap (17).
5
Remove the O-ring (40) from the cap (17) 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.
6 Remove the lower spring support (16) together with the ring (55).
7 Remove the spring (22).
8 Remove the upper spring support (14).
9 Undo and remove the screws of the lower section (33).
10
Remove the bracket (53) from the sleeve (15).
11 Remove the sleeve (15).
12
Remove and replace the I/DWR ring (52) from the sleeve (15).
NOTICE!
Before inserting the replacement I/DWR ring, clean the retaining slots with a cleaning solution.
13 Take out the diaphragm/plug unit (8, 11, 12, 25, 29, 31).
14 Unscrew and remove the nut (31).
15 Remove the diaphragm protection disc (12).
16
Remove and replace the diaphragm (25).
NOTICE!
Before inserting the replacement diaphragm, clean the retaining slots with a cleaning solution.
17 Put the diaphragm protection disc (12) back in place.
18 Position and secure the nut (31).
19
Remove the O-ring (44) from the plug (8) 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.
20 Unscrew and remove the gasket support (1).
21
Remove the O-rings (41, 45) from the gasket support (1) and replace them, taking care to lubricate them with
synthetic grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
22 Take out the plug guide (9).
23 Remove and replace the reinforced gasket (7) from the plug guide (9).