40
ASX 176
EN
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR
|
DESCRIPTION AND OPERATION
|
REV. 00
4.5.2 - MONITOR
The PM/176 monitor (1) is installed upstream of the main pressure regulator (2) in a fully open position during normal
operation.
The PM/176 (1) monitor is used to keep the pressure value downstream of the main regulator within the pre-set limits in
case of failure.
The PM/176 (1) monitor can be:
• incorporated in the regulator (2);
• installed in line with the regulator (2).
2
1
U
pstream
press
.
D
ownstream
press
.
L
oaDing
press
.
p
re
-
regULator
press
.
m
onitor
LoaDing
press
.
Fig. 4.4. ASX 176 with built-in monitor PM/176
4.5.2.1 - BUILT-IN MONITOR
The PM/176 monitor (1) is mounted in series directly on the service regulator housing (2). The PM/176 (1) monitor is nor-
mally in stand-by position, fully open, and in the event of a fault in the main regulator, it comes into operation, ensuring
correct pressure regulation.
Monitor PM/176 (1) and the main regulator are controlled by:
• two separate pilots;
• independent servomotors.
Содержание ASX 176
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