227
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
17
Remove the O-ring (44) from the rod guide (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.
18
Place the rod guide (17) in the eyebolt flange (14).
19
Assemble the eyebolt flange (14) with the cover (3).
20
Insert and fix the screws of the upper section (27) according to the following tightening torque:
• DN 1”: tab. 9.107
• DN 2”: tab. 9.108
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
21
Insert the indicator rod (18) into the rod guide (17).
22
Unscrew and remove the balancing stem guide (11).
NOTICE!
Hold the diaphragm assembly in place by positioning the spanner in the holes in the upper dia
-
phragm support (13).
23
Remove the balancing piston (15) from the balancing stem guide (11).
24
Remove and replace the O-rings (36, 43) from the balancing stem guide (11), lubricating them with synthetic
grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
25
Place the balancing piston (15) in the piston guide (11).
26
Take out the diaphragm unit (10, 12, 13, 21, 29, 45, 50, 62)
27
Unscrew and remove the screws (29) from the lower diaphragm support (10).
28
Remove the diaphragm support (10) and the lower diaphragm protection disc (12).
29
Remove the diaphragm (50) together with the oil seal (62).
30
Remove the lower diaphragm protection disc (12) from the upper diaphragm holder (13).
31
Remove and replace the O-ring (45) from the upper diaphragm support (13), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
32
Place the upper diaphragm protection disc (12) in the upper diaphragm holder (13).
NOTICE!
Check that the hole on the nozzle (21) is free from dirt or foreign bodies.
33
Position the oil seal (62).
Содержание REVAL 182
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