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Figure 1: setting inspection port
Operating pressure,
Motorization pressure,
Atmospheric pressure
Posit.
Noun
(A)
Pilot chamber
(B)
Main chamber
(C)
Pilot chamber
(D)
Pilot chamber
(1) Connection pipe
(2) Pilot filter
(3) nozzle
(4) diaphragm
(5) setting spring
(6) valve plug
(7) positioning spring
(8) pilot plug
(9) discharge connection
(10)
connection pipe
(11)
spring
(12)
ring nut
(13)
safety diaphragm
(14)
rod
(15)
spring
1.2 VALVE CONTROL
The PVS 782 valve is a pilot-operated valve therefore the valve opening and closing
operations are controlled by a pilot device.
The below listed pilot devices are available:
Pilot P 15/A field of intervention1,5 – 43 bar ( see figure 2 );
Pilot P 16/A field of intervention11,5 – 43 bar (see figure 2 );
Pilot P 17/A field of intervention140 – 70 bar ( see figure 2 );
5
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