A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve intended for use as a pressure limiting device for common hydraulic circuit protection.
The RV10-20 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the
spring-opposed poppet from its seat. This valve offers fast response to load changes in typical hydraulic circuits requiring low internal leakage.
Note: The RV10-20 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.
• Adjustments cannot be backed out of the valve.
• Adjustments options A, B, and C: positive stops prevent springs from going solid.
• Hardened poppet and cage for long life.
• Optional spring ranges to 228 bar (3300 psi).
• Rapid response to pressure changes.
• Compact size.
Operating Pressure: 228 bar (3300 psi) maximum
Flow: 38 lpm (10 gpm) maximum; see performance chart for 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. Consult factory for specific flow characteristic values.
Internal Leakage: 0.25 cc per minute (5 drops/minute) max. to 80% of nominal setting
Crack (Set) Pressure Defined: bar (psi) evident at 0.95 lpm (0.25 gpm) attained
Reseat Pressure: Nominal 85% 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.
|Spring Model Code
||Nominal Factory Rating
||Maximum Solid Adjustment
||3.45 – 41.38 bar (50 – 600 psi)
||55.17 bar (800 psi)
||10.34 – 82.76 bar (150 – 1200 psi)
||110.34 bar (1600 psi)
||17.24 – 158.62 bar (250 – 2300 psi)
||200 bar (2900 psi)
||17.24 – 227.59 bar (250 – 3300 psi)
||255.17 bar (3700 psi)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC10-2; See page 9.110_2w
Cavity Tool: CT10-2xx; See page 8.600.1
Seal Kit: SK10-2x-B; or SK10-2x-M (for cross-over relief application); See page 8.650.1
Cartridge: Weight: 0.23 kg. (0.50 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-up standard. Anodized aluminum knobs.
Standard Ported Body: Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions
may differ. See page 8.010_2w.
Adjustment Option Details:
See page 6.003.1