PIETRO FIORENTINI ASX 176, Перевод оригинальной инструкции

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34
ASX 176
EN
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR | DESCRIPTION AND OPERATION | REV. 00
4.1.1 - REGULATOR REACTION MODES
The ASX 176 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 the pilot diaphragm;
• no power supply in the pilot.
4.2 - OPERATION
B 9
E
12
14
11
7
13
6
A
4
2
3
5
1
8
C
10
15
17
18
16
U
pstream pressUre
D
ownstream pressUre
L
oaDing pressUre
p
re
-
regULator pressUre
Fig. 4.2. Operation ASX 176
NOTICE!
To check the position of the plug (5), look at the position of the stroke indicator rod (17) referring to the
glass cover (18):
• fully open 100%;
• closed 0%.