VAL
S
TEAM
ADCA
Produced in accordance with Sound Engineering Practices of the European PED - Pressure Equipment Directive.
IMI PS130.08 E 00.22
8
RISK OF INJURY DUE TO IMPROPER HANDLING
Manual handling (e.g. lifting, carrying, pushing, pulling) of large and/or heavy
products may result in personal injury.
• Assess the risk associated with the handling task.
• Use adequate handling methods and appropriate auxiliary handling equipment.
CAUTION
RISK OF PRODUCT DAMAGE DUE TO EXCESSIVELY HIGH
TIGHTENING TORQUES
High tightening torques may lead to premature wearing of product components.
•
Observe the specified tightening torques on these Installation and Maintenance
Instructions. If the relevant torque value is not mentioned contact VALSTEAM
ADCA.
NOTICE
The ADCAPure PS130 is a direct acting, diaphragm sensing pressure sustaining valve.
This spring-loaded regulator is designed for use with clean air, nitrogen, carbon dioxide,
oxygen, argon and other gases or liquids compatible with the construction materials and
valve design. This model is available with ASME BPE, DIN and ISO clamp ferrules or
tube weld (ETO) ends connections.
2.1. Principle of operation
The function of a pressure sustaining
valve, also commonly referred to as a back
pressure regulator, is to limit and control
upstream pressure of a medium to a specific
adjusted set point. The regulator will open in
case of excessive upstream pressure and
close when the pressure drops below the
set point.
During start-up the upstream pressure
(P1) is immediately supplied to the
sensing chamber. Here it acts below the
diaphragms (15, 16) applying a force Fs
that pushes the plug (5) upwards, opening
the valve and admitting process medium
to the downstream pipework, increasing
P
2
F
S
F
S
F
L
P
1
21
26
15
5
Fig. 1
16
