METRIC Cartridge - 350 bar
Direct acting with anti-cavitation - Poppet Type
The IRA valve combines in one compact insert cartridge the
typical function of shock relief valve and anticavitation through the
check valve. In the pressure relief function it’s a side-in
nose-exhaust valve, with very low pressure rise thanks to the smart
When the pressure at the high pressure inlet (1) reaches the valve
setting, the valve starts to open to tank (2).
In the free reverse flow function a very light bias spring allows for
ease of flow passage from nose to side (2 to 1).
High precision machining guarantees quick response to load
changes, limited hysteresis and reduced internal and external
All external surfaces are zinc plated and corrosion-proof.
All valve parts are made of high strength steel. Both internal and
external poppets are hardened and ground to guarantee minimal
wear and to extend service life.
Pressure setting is pre-adjusted by the factory and cannot be
Optional spring ranges to 350 bar (5000 psi)
Back pressure on the tank port (port 2) is directly additive to the
valve setting at a 1:1 ratio.
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|Maximum operating pressure||350 bar|
|Maximum flow||40 l/min|
|Maximum internal leakage||1.00 cc/min to 80% of nominal set point|
|Factory pressure settings||established @10 l/min|
|Reseat pressure||nominal 90% of crack pressure|
|Anti-cav cracking pressure||< 0.5 bar|
|temperature||-30°C to 110°C|
|fluids||Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt|
|installation torque||25-30 Nm|
|seal kit code||SK.008|
NOTE: The performance chart illustrates flow handling capacity at maximum setting for each spring range option. P/Q curves are recorded at TOil = 40°C and 46 cSt