PIETRO FIORENTINI REVAL 182, Use And Maintenance Instructions

Page: 265 / 404

265
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR | MAINTENANCE AND FUNCTIONAL CHECKS | REV. 00
EN
Step Action
26
Remove and replace the lower diaphragm (16), taking care to lubricate the lanyards with synthetic grease.
NOTICE!
Before inserting the replacement diaphragm, clean the retaining slots with a cleaning solution.
27 Fit the lower protection disc (15).
28
Fix the nut (25) according to the following tightening torque:
• Pilot 204/A: tab. 9.115
29 Fit the plug (17) and then the spring (21).
30 Fit the upper protection disc (15).
31
Fix the pilot nut (2) according to the following tightening torque:
• Pilot 204/A: tab. 9.115
32
Insert assembly “ A ” (plug) from the top downwards into the valve body (4)
NOTICE!
• Take care not to damage the diaphragms (16) during this step
• Make sure the marking on the lower section of the headframe is parallel to the axis of the hole
for inserting the seat (3) into the valve body (4).
33
Insert assembly “ B ” (valve) into the valve body (4).
NOTICE!
Take care not to damage the O-rings (28, 29) and the valve seat (3).
34
Fix the nut (26) according to the following tightening torque:
• Pilot 204/A: tab. 9.115
35 Fit the spring (20).
36 Fit the cover (1).
37
Insert and fix the screws of the upper section (24) according to the following tightening torque:
• Pilot 204/A: tab. 9.115
38 Fit the sleeve (6) and the bracket (14).
39
Insert and fix the screws of the lower section (24) according to the following tightening torque:
• Pilot 204/A: tab. 9.115
40 Fit the spring (22) and the spring supports (7).
41 Unscrew the cap (8).
42
Remove and replace the O-ring (11) in the nut (9).
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
43 Fit the adjusting screw (10) together with the cap (9).
Tab. 9.157.
WARNING!
Ensure that all parts have been fitted correctly.