Samson 45-6, Монтаж и эксплуатация

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9-10 EB 3226 EN
Servicing
9.3.3 Replacing the set point
springs
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.
SAMSON's After-sales Service can support
you concerning lubricant, tightening torques
and tools approved by SAMSON.
The stem surface is roller-burnished. Do not
reface the stem.
After replacing the diaphragm stem, the nip-
ple (guide bushing) in the actuator case must
be replaced as well.
Change the nameplate and material number
after changing the set point range.
Î
See Fig. 9-2 and Fig. 9-1
NOTICE
!
NOTICE
!
Note
Note
Note
Disassembling the Type 45-6 with external
set point spring
1. Put the regulator out of operation (see
the 'Decommissioning' section).
2. Completely relieve the tension from the
set point spring (8) by turning the set
point adjuster (10) counterclockwise (

).
3. Remove the device from the pipeline
4. Unscrew the control line (11).
5. Use the SAMSON disassembly tool to
unscrew the set point adjuster (10) from
the diaphragm stem (7).
6. Lift off the spring plate (9) and the set
point spring (8). Replace. the set point
spring
7. Examine the diaphragm stem (6.3) for
score marks. Replace, if necessary.
Assembling the Type 45-6 with external set
point spring
8. Use the SAMSON disassembly tool to
screw the valve body (1) together with
spring plate (9) and the new set point
spring (8).
9. Screw the set point adjuster (10) onto the
diaphragm stem (6.3).
10. Screw on the control line (11). Observe
the specified tightening torques (see
'Tightening torques' in Annex).
11. Put the regulator back into operation (see
the 'Start-up' section).
Type 45-6 with spring housing
Do not replace the set point spring in
Type 45-6 with spring housing.