Replacing The Operating Diaphragm - Samson 45-9 Mounting And Operating Instructions

Assembly
1. Screw in the seat (2) using a seat
wrench. Observe the tightening torques
specified in section 7.5.
2. Renew the seal (3.6) and insert it into the
body.
3. DN 15 to 25: insert and screw in the
guide nipple of the plug (3) using a sock-
et wrench. Observe the tightening
torques specified in section 7.5.
DN 32 to 50: insert the the guide nipple
of the plug (3) and screw in the plug nip-
ple (3.5). Observe the tightening torques
specified in section 7.5.
4. Check the facings of the diaphragm case
(7) and the valve body (1) for dirt and
clean them, if necessary.
5. Place the operating diaphragm (6.1)
with diaphragm case (7) onto the valve
body (1).
6. Tighten the screws (15) in a crisscross
pattern. Observe the tightening torques
specified in section 7.5.
7. Screw on the control line (11). Observe
the tightening torques specified in sec-
tion 7.5.
8. Install the regulator into the pipeline.
9. Put the regulator into operation (see sec-
tion 6.1).
EB 3128 EN
7.3 Replacing the operating di-
aphragm
NOTICE
!
Risk of regulator damage due to excessively
high or low tightening torques.
Observe the specified torques on tightening
regulator components. Excessively tightened
torques lead to parts wearing out quicker.
Parts that are too loose may cause leakage.
Observe the specified tightening torques.
Note
SAMSON's After-sales Service department
can support you concerning lubricant,
tightening torques and tools approved by
SAMSON.
Note
The operating diaphragm can only be re-
placed together with the diaphragm plates.
See Fig. 3 and Fig. 4.
Removal
1. Put the regulator out of operation (see
section 9.1).
2. Unscrew the control line (11).
3. Unscrew the screws (15) and lift the dia-
phragm case (7) with operating dia-
phragm (6.1) off the valve body (1).
Maintenance
33