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

PD42-M42

PILOTED DIRECTIONAL VALVE

Overview

Description

A 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-M42 allows flow from port 3 to 2, bidirectionally, while flow is blocked at 4. On remote pilot signal at 1, the valve shifts open from 3 to 4, while blocking flow at 2. Note that 4 is common to the spring chamber and the pressure at 4 will directly (1:1) affect required pilot pressure and must always be added to the bias spring value

Features

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

Ratings

Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi) Ports 1, 2 and 3
  • 210 bar (3000 psi) Port 4
Pilot pressure required:
  • 11.86 bar (172 psi) To begin spool movement
  • 14.48 bar (210 psi) To bring the spool to cross-over point between flow patterns
  • 17.00 bar (245 psi) To fully shift the spool
Flow Ratings
Flow performance:
  • See performance chart
Flow rating:
  • See performance chart below
Maximum internal leakage:
  • 246 ml/min (15 in³/min) On all ports at maximum operating pressure, except for the sealed pilot version, that exhibits no leakage at 1 at the maximum operating pressure

Performance

PD42-M40_Perf_Chrt

Dimensions

PD42-M40_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.52 kg 1.15 lb); 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 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.

Installation Specifications

Order Code

POSITION
CODE
DESCRIPTION
PD42-M42B-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-M42_Order