E-RV08-20 RELIEF VALVE CARTRIDGE DIRECT ACTING POPPET TYPE
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DESCRIPTION
E-RV08-20 is a screw in, cartridge style, direct acting, poppet type, hydraulic relief valve intended for lower flow circuits requiring low internal leakage.
OPERATION
E-RV08-20 blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the spring opposed poppet off its seat.
Note: The E-RV08-20 may be used in cross-over relief applications (back pressure on 2) with the use of the "C" double back-up ring seal option.
FEATURES
* Adjustments can not be backed out of the valve.
* Adjustment options A, B: positive stops prevent springs from going solid.
* Optional spring ranges to 248 bar (3600 psi).
* Rapid response to pressure changes.
* Compact size.
SPECIFICATIONS:
Operating Pressure: 248 bar (3600 psi)
Flow: the Performance Chart illustrates flow handling capacity at max. setting for each spring range option. Pressure rise will vary with spring (range) and with setting within range due to flow forces.
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at to 75% of nominal setting.
Cracking Pressure Defined: pressure evident at 0.95 lpm (0.25 gpm) attained
Reseat Pressure: Nominal 80% of crack pressure
Standard Spring Ranges: Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown below.
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: VC08-2
PERFORMANCE:
DIMENSIONS
ORDER CODE:
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We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.
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