SYMBOL
DESCRIPTION
E-RV12-26 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-RV12-26 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 stage to shift, opening port 1 to port 2.
The cartridge offers smooth transition in response to load changes in demanding hydraulic circuits.
NOTE: the E-RV12-26 valve cannot be used in cross-over relief applications.
SPECIFICATIONS:
Operating Pressure: 241 bar (3500 psi)
Proof Pressure: 420 bar (6090 psi)
Flow: 189.3 L/min (50 gpm) see performance chart
Internal Leakage: 115ml/min. (7 cu.in/min) max. at to 85% of nominal setting
Crack Pressure Defined: pressure evident at 7.6 lpm (2.0 gpm) attained
Reseat Pressure: Nominal 90% of crack pressure
Standard Spring Ranges:
6.9 to 27.6 bar (100 to 400 psi);
13.8 to 110.3 bar (200 to 1600 psi);
31.0 to 206.9 bar (450 to 3000 psi);
34.5 to 241.4 bar (500 to 3500 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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