Samson 2357-11, Монтаж и эксплуатация

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10 EB 2560 EN
Maintenance
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
0
5
10
15
20
25
30
35
40
1...8 bar
5...2 5 bar
8...40 bar
Fig. 2: Adjustment diagram
5.3 Decommissioning
Close first the shut-off valve on the upstream
side of the valve and then on the down-
stream side of the valve.
Turns of the set point adjuster

: to increase the set point

: to reduce the set point
Set point
[bar]
6 Maintenance
The regulators do not require any mainte-
nance. Nevertheless, they are subject to nat -
ural wear, particularly at the seat, plug and
operating diaphragm.
Depending on the operating conditions,
check the regulator at regular intervals to
avoid possible malfunctions.
WARNING!
Process medium can escape uncon-
trolled on dismantling the regulator.
Risk of cold burns!
Allow the regulator to defrost before
depressurizing and draining it and re-
move it from the pipeline.
If faults or malfunctions cannot be remedied,
contact SAMSON (see section 7).
6.1 Exchanging the seat and
plug
See Fig. 1 on page 7.
1. Loosen the lock nut (11) and turn the set
point adjuster (10) counterclockwise

to
fully relieve the internal set point springs
(8).
2. Unscrew the body screws (14) using an
open-end wrench (size 19 mm). Lift off
the valve body (1).
3. Unscrew the seat (15) using a seat
wrench (size 30 mm socket). Remove the
plug (2.1).
Set point ranges