Exchanging The Operating Diaphragm - Samson 44-2 Mounting And Operating Instructions

DN 32 to 50: insert the the guide nipple
(2.6) and screw in the plug nipple (27).
Observe the tightening torques specified
in Chapter 8.4.
4. Check the facings of the actuator hous-
ing (112) for dirt and clean them, if nec-
essary.
5. Place the actuator housing (112) on the
valve body (30) and screw tight the body
screws (130). Observe the tightening
torques specified in Chapter 8.4.
6. Screw on the control line (116). Observe
the tightening torques specified in Chap-
ter 8.4.
7. Put the regulator into operation (see
Chapter 6).
8.2 Exchanging the operating
diaphragm
DANGER
!
Risk of personal injury due to preloaded
springs.
Regulators in combination with preloaded
set point springs are under tension. These
regulators can be identified by the red warn-
ing label on the actuator's set point springs.
− Before starting any work on the springs,
relieve the compression from the preloaded
springs.
− Only use the SAMSON disassembly tool
(1280-4052).
EB 2623-1 EN
NOTICE
!
Risk of regulator damage due to over- or
under-torquing.
Observe the specified torques when
tightening regulator components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are too loose may
cause leakage.
Observe the specified tightening torques.
NOTICE
!
Risk of TÜV approval (based on AGFW
worksheet FW 504) for Types 44-3 and
44-9 becoming void.
Consult SAMSON's After-sales Service be-
fore you change parts or perform service or
repair work on TÜV-tested Type 44-3 and
Type 44-9 Regulators.
Note
SAMSON's After-sales Service can support
you concerning lubricant, tightening torques
and tools approved by SAMSON.
Note
The stem surface is roller-burnished. Do not
reface the stem.
After replacing the diaphragm stem, the
nipple (guide bushing) in the actuator case
must be replaced as well.
Servicing
31