54
REV
AL 182
EN
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
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DESCRIPTION AND OPERATION
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REV. 00
4.5.4 - SLAM-SHUT VALVE PRESSURE SWITCHES
The pressure switch is a control device consisting of (see Fig. 4.14):
Pos. Description
1
Control element.
NOTICE!
The control element can be a diaphragm or a piston.
2
Stem.
3-4
Adjustment feeler gauges
5
Spring for maximum pressure tripping.
6
Spring for minimum pressure tripping.
7
UPSO minimum spring adjustment ring nut (6).
8
OPSO maximum pressure spring adjustment ring nut (5).
10
Manual release button.
Tab. 4.29.
8
7
5
6
4
3
2
1
10
D
ownstream
pressUre
Fig. 4.14.
Slam-shut device pressure switch
Summary of Contents for REVAL 182
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