SYMBOL
DESCRIPTION
E-RV50-26 is a screw in, cartridge style, pilot operated (two stage), spool type relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis.
OPERATION
The E-RV50-26 blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the pilot relief off its seat, allowing the main (second stage) spool to shift, opening port 1 to port 2.
The cartridge offers smooth transition in response to load changes in demanding hydraulic circuits.
NOTE: this valve may not be used in cross-over relief applications (back pressure on 2).
FEATURES
* Adjustments cannot be backed out of the valve.
* Adjustments prohibit springs from going solid.
* Hardened spool and cage for long life.
* Fast, smooth response to pressure surges.
* Industry common cavity.
SPECIFICATIONS:
Operating Pressure: 345 bar (5000 psi)
Flow: 113.6 L/min (30 gpm) The Performance Chart illustrates flow handling capacity at maximum setting. Pressure rise will vary with setting due to flow forces.
Internal Leakage: 115ml/min. (7 cu.in./min) max. at to 85% of nominal setting
Cracking Pressure Defined: pressure evident at 7.6 lpm (2.0 gpm) attained
Reseat Pressure: Nominal 90% of crack pressure
Standard Spring Ranges: 27.6 to 345 bar (400 to 5000 psi)
Temperature: - 40°C ~ + 120 °C (with Standard Buna N seals)
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus)
Cavity: VC12-2
PERFORMANCE (Cartridge Only):
DIMENSIONS
ORDER CODE:
AAK Hydraulic Valve is a top manufacturer for Hydraulic Screw-in Cartridge Valves in Ningbo China since 2009.
We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.
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