Replacing The Seat And Plug - Samson 45-9 Mounting And Operating Instructions

Maintenance
7.2 Replacing the seat and
plug
See Fig. 3 and Fig. 4.
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.
NOTICE
!
Risk of damage to the facing of the seat and
plug due to incorrect service or repair.
Always replace both the seat and plug.
Note
The socket wrench for DN 15 to 25 can also
be made, for example from a GEDORE
screwdriver bit (IN 19-19) by drilling a
17-mm-deep hole (Ø17) into a 17 mm
hexagon bit.
SAMSON order no. 1280-3001
32
17
SW 19
Note
SAMSON's After-sales Service department
can support you concerning lubricant,
tightening torques and tools approved by
SAMSON.
Disassembly
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).
4. DN 15 to 25: unscrew and pull out the
guide nipple of the plug (3) using a sock-
et wrench.
DN 32 to 50: unscrew the plug nipple
(3.5) and pull out the guide nipple of the
plug (3).
5. Remove the seal (3.6).
6. Thoroughly clean the seat (2), plug (3)
and balancing mechanism (3.1). Replace
damaged parts with new ones. If the
plug is damaged, replace the entire plug
with a new one.
7. Check the control line (11) for any block-
ages.
8. Unscrew the seat (2) using a seat wrench
if the seat facing is damaged.
EB 3128 EN