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DIRECTIONAL VALVES

MR10-31 Manual Rotary 3-Way, 2-Pos. Directional Valve

SYMBOLS

4.774.1

USASI/ISO:

TRANSITION:

PERFORMANCE (Cartridge Only)

6.9/100

5.5/80

4.1/60

2.8/40

1.4/20

7.5

15.1

22.7

FLOW lpm/gpm

PRESSURE DROP bar/psi

➁ to ➀ — (e); ➂ to ➀ - - - (d)

32 cSt/150 ssu oil at 40°C

30.2

37.9

DESCRIPTION

A manually-operated three-way, two-position directional valve with adaptability to a

variety of adjustment operators (ordered separately).

OPERATION

Rotation of 90°, 2-position. In extreme counterclockwise position, ports ➀ and ➁ are

open while port

➂ is closed. In extreme clockwise position, ports ➀ and ➂ are open

while port

➁ is closed. All ports are closed in transition.

FEATURES

• Two-position detent or inﬁ nite friction lock ordered separately.

• May be fully pressurized at all ports.

• Optional lock-down bracket.

• Heavy-duty construction.

• Industry common cavity.

RATINGS

Operating Pressure: 240 bar (3500 psi)

Max. Flow: See Performance Chart

Internal Leakage: 164 cc/min. (10 cu. in./min.) at 240 bar (3500 psi)

Temperature: -40 to 120°C with standard Buna N seals

Spring Return Option: Returns clockwise

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 position restrictions; See page 9.020.1

See page 4.990.2 for operator handles/knobs installation;

See page 4.990.1 for lock-down bracket installation.

Cavity: VC10-3; See page 9.110.1

Cavity Tool: CT10-3XX; See page 8.600.1

Seal Kit: SK10-3X-MM; See page 8.650.1

Lock-Down Bracket Kit: Part Number 5399000

HYDRAFORCE

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Blue rectangles are links to other catalog pages.

Cartridge: Weight: 0.12 kg. (0.27 lbs.)

Steel with hardened work surfaces.

Zinc-plated exposed surfaces.

Buna N O-rings and Fluorocarbon

back-ups standard.

Standard Ported Body: Weight:

0.27 kg. (0.60 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

Lever-Type Handle: (Sold Separately)

Weight: 0.18 kg. (0.38 lbs.) Steel with

hardened work surfaces. Zinc-plated

exposed surfaces. Plastic lever arm.

DIMENSIONS

MATERIALS

TO ORDER

Seals

N Buna N (Std.)

V Fluorocarbon

MR10-31 __ - __ __ __ - __

Option

None

(Blank)

MR10-31

4.774.2

Porting

Cartridge Only 0

SAE 6 6T

SAE 8 8T

SAE 8 with

Lock-Down Bracket 8TL

1/4 in. BSP* 2B

3/8 in. BSP* 3B

*BSP Body;

U.K. Mfr. Only

NOTE: To order standard

operator kits, refer to pages

4.770.1 and 4.770.2

3.33

84.6

1.69

42.9

1.21

30.7

2.01

51.1

2.42

61.5

2.87

72.9

2.26

57.4

2.13

54.1

HYDRAFORCE

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Blue rectangles are links to other catalog pages.