The Covers CVC*PR are designed to hold Polyhydron make 2 port slip-in cartridge
valves model CV*** in the cavities machined as per ISO 7368, and are meant
to create a Proportional pilot operated relief function and a relieving function by
incorporating a combination of Electrically operated proportional Relief valve and a
mechanically adjustable Pressure Relief valve in the cover, in conjuction with a Slip-in
Cartridge having a poppet ratio of 1:1 in the Slip-in cavity.
The Relief valve in the cover is intended for additional safety by limiting the maximum
pressure in the line and can be set independently by using the pressure setting screw
on the cartridge.
The electrically pressure proportional valve is not in the scope of supply.
A Polyhydron Group Company
Description
Section
Hydraulic symbol
COVER FOR PROPORTIONAL
RELIEF VALVE
Model : CVC*PRS**
Ref. No. D 09636
Release 02 / 2015
ENGINEERING - 1 of 2
78-80, Machhe Industrial Estate,
Machhe, Belgaum - 590 014. INDIA.
Phone : +91-(0)831- 2411001
Fax : +91-(0)831- 2411002
E-mail : polyhydron@gmail.com
Website : www.polyhydron.com
Mounting interface : As per ISO 7368
Working pressure : 350 bar.
Hydraulic medium : Mineral oil.
Temperature range : -20°C to + 80°C.
Viscosity range : 10 cSt to 380 cSt.
Fluid cleanliness required : ISO 4406 20/18/15 (17/14/11 for long service life) or better.
Technical specifications
TP
X
A
B
C
Y
X
Y
A
B
X
C
P
T