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
VC10-4
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