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 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with Fluorocarbon seals;
   -54 to 107°C (-65°F to 225°F) 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 valve’s 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.