Valves - Directional Controls - Manual - Pull to Shift - Spring Return

MP08-40

MANUAL CARTRIDGE VALVE 2 POSITION, 4-WAY

Overview

Description

The MP08-40X is a 4-way, manual, 2-position, pull to shift, spring return, directional hydraulic cartridge valve with locking feature.

Operation

In its neutral position the valve directs flow from port 3 to port 2 and from port 4 to port 1. In the actuated (pulled) position it directs flow from port 3 to port 4 and from port 2 to port 1t. All ports are open in transition. the spring chamber is vented at port 1. When released the valve returns to its neutral position.

A 90° turn is required to lock the valve in the actuated (pulled) position. the valve resets to spring return (neutral) position with a slight pull and a 90° turn from the locked actuated position.

NOTE: pressure at port 1 will directly act on spool and spring. port 1 is intended to be a tank port only.

Features

  • Hardened spool and cage for long life.
  • Remains closed to 14 bar (200 psi) back-pressure.
  • Optional rotational lock position.
  • Industry-common cavity.
Pressure Ratings
Pressure rating:
  • 207 bar (3000 psi) Ports 2, 3, and 4
  • 14 bar (200 psi) Port 1
Flow Ratings
Flow rating:
  • See performance graph
Maximum internal leakage:
  • 164 ml/min (10 in³/min) At 207 bar (3000 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 90 °C (-40 to 194 °F)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 20/18/14 per ISO 4406
Mechanical pull effort required:
  • 7.7 kg (17 lb) Installed
  • 9.1 kg (20 lb) To open port 3 to port 4 and port 2 to port 1
  • 10.4 kg (23 lb) To detent
Unit weight:
  • 0.27 kg (0.6 lb)
Internal wetted surface area:
  • 165 cm² (25.5 in²)
MP08-40_Perf
MP08-40_Dim

Materials

Cartridge: Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard. Plastic knob optional.

Standard Ported Body: Weight: 0.34 kg (0.75 lb) Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.

Cavity:
Cartridge installation torque:
  • 25.8 to 28.5 N-m (19 to 21 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-4X-MMT X = seal option
MP10-40_Order
POSITION
CODE
DESCRIPTION
MP08-40F-H-J
F
Adjustment
F
D
Black Plastic Knob with Lock Position Pin
F
J
Red Plastic Knob with Spring Return
F
K
Black Plastic Knob with Spring Return
F
L
Red Plastic Knob with Lock Position Pin
F
R
Threaded Shaft with Lock Position Pin
F
T
Threaded Shaft with Spring Return
H
Line Body
H
0
No Body
H
6TD
Ductile Iron SAE 6
H
3B
Aluminum BSPP 3/8" (3)
H
3BD
Ductile Iron BSPP 3/8" (3)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane