34
REV
AL 182
EN
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
DESCRIPTION AND OPERATION
|
REV. 00
4.1.1 - REGULATOR REACTION MODES
The REVAL 182 equipment is a regulator controlled with a “fail close” reaction (on-closure reaction), that is, it closes in the
event of:
• breakage of main diaphragm:
• breakage of pilot 204/A diaphragm;
• no power supply to the pilot.
4.2 - OPERATION
1
5
6
3
2
4
7
A
E
10
18
11
C
12
F
17
G
15
16
14
D
B
8
9
13
20
19
21
22
U
pstream
pressUre
D
ownstream
pressUre
L
oaDing
pressUre
p
re
-
regULator
pressUre
Fig. 4.2. Operation REVAL 182
Summary of Contents for REVAL 182
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