Valves - Directional Controls - Piloted Directional Valve - 2-position 3-way - Atmospheric Vent

PD42-M40

PILOTED DIRECTIONAL VALVE

Overview

Description

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

Operation

In neutral (unpiloted) position the PD42-M40X allows flow passage from port 3 to port 2 bidirectionally, while flow is blocked at port 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 port 1, the valve shifts to open port 3 to port 4, while blocking port 2. The vented aping chamber allows PD42-M40X to be fully pressurized at any port without affecting required pilot pressure

Features

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

Ratings

Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi)
Flow Ratings
Flow rating:
  • 265 lpm (70 gpm)
Maximum internal leakage:
  • 245 ml/min (15 in³/min) At 345 bar (5000 psi)
  • 0 lpm (0 gpm) From port 1 and 2 with sealed spool
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
  • -54 to 107 °C (-65 to 225 °F) With polyurethane and urethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 90 °C (-40 to 194 °F)

Operating Parameters

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

Properties

Unit weight:
  • 1.8 kg (4.0 lb)
Internal wetted surface area:
  • 817 cm² (126.7 in²)

Performance

PD42-M40_Perf_Chrt

Dimensions

PD42-M40_Dim_Dwg

Materials

Materials

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.

Installation Specifications

Cavity:
Cartridge installation torque:
  • 89 to 102 N-m (65 to 75 ft-lb)
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK42-4N-MMM Buna N
  • SK42-4V-MMM Fluorocarbon
  • SK42-4P-MMM Polyurethane
  • SK42-4U-000 Urethane

Order Code

POSITION
CODE
DESCRIPTION
PD42-M40B-H-J-R
B
Spool Option
B
BLANK
Standard
B
N
Normally Open in Transition
H
Line Body
H
0
No Body
H
16T
Aluminum SAE 16
H
20T
Aluminum SAE 20
J
Seal
J
N
Buna-N
J
NS
Buna-N with a Sealed Spool
J
V
Fluorocarbon
J
VS
Fluorocarbon with a Sealed Spool
J
P
Polyurethane
J
PS
Polyurethane with a Sealed Spool
J
U
PPDI Urethane
J
US
PPDI Urethane with a Sealed Spool
R
Spring
R
160
160 psi Bias Spring
PD42-M40_Order