Valves - Directional Controls - Piloted Directional Valve - 2-position 2-way - External Vent - Normally Closed

PD10-44

PILOTED DIRECTIONAL VALVE

Overview

Description

The PD10-44 is a screw-in, cartridge style, pilot-operated, spool type, hydraulic directional valve

Operation

In neutral position the valve blocks flow from port 2 to 3. On remote pilot signal at port 1, the valve's spool shifts to allow flow from port 2 to 3 bidirectionally. The spring chamber is vented to port 4 which is internally o-ring sealed from the cartridge flow paths. Pressure on port 4 will directly (1:1) affect the pilot pressure required and must be added to the bias spring value

Features

  • Hardened spool and cage for long life.
  • Industry common cavity.

Ratings

Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Flow Ratings
Maximum internal leakage:
  • 82 ml/min (5 in³/min) From port 1 to 2 or port 2 to 3 (when shifted) at 207 bar (3000 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 160 °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 seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 90 °C (-40 to 194 °F)
Other Ratings
Corrosion protection:
  • Gpd10-44 - 960 hr salt spray per ASTM b117

Operating Parameters

Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406

Properties

Unit weight:
  • 0.20 kg (0.43 lb)
Internal wetted surface area:
  • 192 cm² (29.77 in²)

Performance

PD10-44_Perf_Chrt

Dimensions

PD10-44_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.16 kg. (0.35 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body : Weight: 0.34 kg. (0.75 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:
  • 32.6 to 35.4 N-m (24 to 26 ft-lb)
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK10-4N-MMM Buna N
  • SK10-4V-MMM Fluorocarbon
  • SK10-4P-MMM Polyurethane
  • Installation specifications

Order Code

POSITION
CODE
DESCRIPTION
PD10-44-H-J-R
H
Line Body
H
0
No Body
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
H
6TD
Ductile Iron SAE 6
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
60
60 psi Bias Spring
R
110
110 psi Bias Spring
R
130
130 psi Bias Spring
R
170
170 psi Bias Spring
PD10-44_Order