DESCRIPTION
A manual, 2-way, normally closed, pull-to-open, spring-return, screw-in, hydraulic
cartridge, system unloading valve for higher tank pressure applications.
OPERATION
The MP10-22 blocks fl ow 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 fl ow rates, a combination of the differential pressure across the
valve (fl owing
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.
FEATURES
• 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.
RATINGS
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
DIRECTIONAL VALVES
MP10-22 Manual, Spring Return, Pull-to-Open
USASI/ISO:
SYMBOLS
4.615.1
PERFORMANCE (Cartridge Only)
6.9/100
5.5/80
4.1/60
2.7/40
1.4/20
18.9
5
37.9
10
56.8
15
FLOW lpm/gpm
PRESSURE DROP bar/psi
to (fully open)
32 cSt/150 ssu oil at 40°C
➁➀
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Seals
N Buna N (Std.)
V Fluorocarbon
DIMENSIONS
MP10-22 __ - __ __ __ - __
TO ORDERMATERIALS
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.
Plastic knob optional.
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 8.010.1
Option
Threaded Shaft/
Spring Return T
Threaded Shaft/
Lock Position Pin R
Black Plastic Knob/
Spring Return K
Black Plastic Knob/
Lock Position Pin D
Red Plastic Knob/
Spring Return J
Red Plastic Knob/
Lock Position Pin L
MP10-22
4.615.2
Porting
0 CartridgeOnly
6T SAE 6
8T SAE 8
2B 1/4 in. BSP*
3B 3/8 in. BSP*
4B 1/2 in. BSP*
*BSP Body; U.K. Mfr. Only
®
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