QRV08-20B

  Pressure Control Valve
  Relief Valve, Poppet-Type

QRV08-20B  = Direct-acting pressure relief valve =

SYMBOLS:
ISO:

 

DESCRIPTION:
A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valveintended for lower flow circuits requiring low internal leakage.
The QRV08-20 blocks flow from ① to ② until sufficient pressure is present at ① to force the spring-opposed poppet from its seat.
Note: The QRV08-20 may be used in cross-over relief applications (back pressure on ②) with the use of the “C” double back-up ring seal option. See ordering options below.

 

Operating
Pressure (bar)
Proof Pressure (bar) Flow Internal Leakage
(cc/min)
User Temperature(0C) Operation Voltage
 248 350  22 lpm/6 gpm 0.15 cc/min
(First remove inside air)
 -400~ 120  ± 15% voltage

FEATURES
.100% full inspection for all products.
.Standard product life tested for million cycles.
.1000-hour salt-spray anti-corrosion protection tested.
.Raw material, oil, electroplating, etc. in manufacturing process with RoHS compliance.
.All coils tested by third party notarization inspection & CE certified.
.Heat Treatment on spool, poppet, cage for long life and low leakage.
.Coil rated for continuous duty
.Customized coil voltages and terminations
.Cartridges are customized.
.Manual override option.
.Multi industrial applications.
.Compact size.
.Coil mold design with sufficient demands

 

RATINGS
Operating Pressure: 248 bar (3600 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: 22 lpm (6 gpm)
Internal Leakage: 0.15 cc/minute
User Temperature: -40° to 120°C (-40° to 248°F) with Buna seals;
User Temperature: -26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Filtration: With S: 100 mesh (149 micron)
Operation Voltage: ±15% voltage
Cavity: Q08-2; See page Q08-2

 

 


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