IRV10-B20 Relief Valve Direct-Acting Poppet

IRV10-B20 Hydraulic Main Relief Valve Direct-Acting Poppet
A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve intended for lower flow circuits requiring low internal leakage.

Specifications of IRV10-B20 Relief Valve Direct-Acting Poppet
Operating Pressure 350 bar (5100 psi)
Flow The Performance Chart illustrates the flow handling capacity of different
springs at maximum setting. Pressure rise will vary with setting due
to spring and flow forces. Consult Inno for specific pressure-flow
characteristic values.
Internal Leakage 0.25 ml/min. (5 drops/minute) max.to 80% of nominal setting
Reseat Pressure Nominal 80% of crack pressure
Temperature -40 to 100®C
Fluids Mineral-based or synthetics with lubricating properties at viscosities of 7.4
to 420 cSt (50 to 2000 ssu)
Installation No restrictions
Cavity IVC10-2; See page 300

Material
Cartridge Weight: 0.17 kg. (0.37 lbs.); Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Seal: D type seal rings.
Anodized aluminum knobs and caps.
Standard Ported Body Weight: 0.16 kg. (0.35 lbs.); Anodized high-strength 6061
T6 aluminum alloy, rated to 240 bar (3500 psi).
Ductile iron and steel bodies available; dimensions may differ.
Consult Inno.

Features of IRV10-B20 Relief Valve Direct-Acting Poppet
1. Adjustments cannot be backed out of the valve.
2. Adjustments prohibit springs from going solid.
3. Optional spring ranges to 350 bar (5100 psi).
4. Fast, smooth response to pressure surges.
5. Compact size.

Operation Symbol of IRV10-B20 Relief Valve Direct-Acting Poppet
The IRV10-B20 relieves the pressure to ② from ① once the pre-determined pressure was attained at ①, intended to reduce pressure.

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