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A manual, 2-way, normally closed, pull-to-open, spring-return, screw-in, hydraulic cartridge, system unloading valve for higher tank pressure applications.
The MP10-22 blocks flow from ➁ to ➀ until an operator pulls the shaft outward.The bias spring allows for up to 27.6 bar (400 psi) back-pressure at ➀ before the valve will open.
When passing high flow rates, a combination of the differential pressure across the
valve (flowing ➁ to ➀) and ➁ downstream back-pressure may require the operator to push the shaft to close.
Note: Pressure at port ➀ will directly act on the spool and spring. Port ➀ is intended to be a tank port only.
A unique 90° rotational lock is optional for positive “open” position holding. The valve
resets to spring return-to-close with a 90° turn from the locked-open position.
• Hardened seat for long life and low leakage.
• Remains closed to 27.6 bar (400 psi) back-pressure.
• Optional rotational lock position.
• Industry common cavity.
Operating Pressure: 207 bar (3000 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: See Performance Chart
Internal Leakage ➁
to ➀
: 0.25 cc/minute (5 drops/minute) max. at 207 bar (3000 psi)
Mechanical Pull Effort Required: 14.1 kg. (31 lbs.) installed; 16.3 kg. (36 lbs.) to travel 3.18 mm (0.125 in.); 17.3 kg. (39 lbs.) to detent
Temperature: -40 to 120°C
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 9.110.1
Cavity Tool: CT10-2XX; See page 8.600.1
Seal Kit: SK10-2X-T; See page 8.650.1
