Directional Valves

PD42-M40 — Piloted, 3-Way, Spool Valve, External Vent
  Selection guide - similar valves.
  PDF file of this page.
  STP file for PD42-M42.
  Request a quote.

PD42-M41 Valve

PD42-M40 Valve symbol

A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve
for three-way circuits requiring remote pilot actuation.

In neutral (unpiloted), the PD42-M40 allows flow from 3 to 2 bidirectionally while flow is blocked at 4.
V is a spring chamber vent-to-atmosphere, which is internally O-ring sealed from the cartridge flow paths.
On remote pilot signal at 1, the valve shifts to allow flow between 3 and 4 while blocking at 2.
Because of the vented spring chamber, the cartridge may be fully pressurized at any port without
affecting required pilot pressure.

Hardened spool and cage for long life.
Optional sealed pilot
Industry-common ISO cavity.

Operating Pressure: 345 bar (5000 psi) with Polyurethane seals
Flow: up to 265 lpm (70 gpm)
Maximum Internal Leakage at 345 bar (5000 psi): 246 cc/minute (15 cu. in./minute)
Pilot Pressure Required:
   To Spool Crossover: 11.6 bar (172 psi)
   To Full Spool Shift: 17.0 bar (245 psi)
Temperature: -40 to 100C (-40 to 212F) with Buna seals;
   -26 to 204C (-15 to 400F) with Fluorocarbon seals;
   -54 to 107C (-65F to 225F) with Polyurethane seals
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: VC42-M4; See page 9.142.1_4w
Cavity Tool: CT42-M4xx; See page 8.600.1
Seal Kit: SK42-4x-MMM; See page 8.650.1
Cap Vent Seal: 6003131

Note: This valve is designed with a dynamic oil-to-atmosphere seal in the vent
section. Ambient conditions will cause this vent seal to degrade which will reduce
the valves cycle life. If this could cause a problem, we suggest that a non-vented
model be selected, or special seal be used. Consult factory for assistance.


PD42-M40 Valve Performance Chart
PD12-40 Valve Dimensions


Cartridge: Weight: 0.52 kg. (1.15 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer
back-ups standard.

Standard Ported Body: Weight:
2.8 kg. (6.2 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.
See page 8.042.1_4w

PD42-M40 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for PD42-M40 Request a quote.