| Pressure Control Valve
Relief Valve, Pilot Operated, Spool
QRV50-26 = Pilot Relief =
A screw-in, cartridge-style, pilot-operated, two-stage, spool-type hydraulic relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis at high operating pressures.
The QRV50-26 blocks flow from ① to ② until sufficient pressure is present at ① to force the pilot relief off its seat, allowing the main stage to shift, opening ① to ②. The cartridge offers smooth transition in response to load changes in demanding hydraulic circuits
Note: The QRV50-26 cannot be used in cross-over relief applications
|Proof Pressure (bar)||Flow||Internal Leakage
|User Temperature(0C)||Operation Voltage|
|240||350||113 lpm/30 gpm||0.15 cc/min
(First remove inside air)
|-400~ 120||± 15% voltage|
．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.
．Coil mold design with sufficient demands.
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: 113 lpm (30 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: Q10-2; See page Q10-2