PD08-35
hydraforce.com
PILOTED DIRECTIONAL VALVE
Overview
Symbol
Description
The PD08-35 is a screw-in, cartridge style, pilot-operated, spool type,
normally open, hydraulic directional valve
Operation
In neutral position the valve allows flow from port 2 to 3. The spring bias
chamber is internally vented to port 3. On remote pilot signal at port 1,
the valve's spool shifts to block flow from port 2 to 3. Pressure on port 3
will directly (1:1) affect the pilot pressure required and must be added to
the bias spring value
Features
External vent-to-atmosphere.
❍
Range of bias springs available.
❍
Sealed spool option for bias spring options 110.
❍
Hardened spool and cage for long life.
❍
Industry common cavity.
❍
Ratings
Pressure Ratings
Pressure rating
241 bar (3500 psi)
Flow Ratings
Flow rating
8.9 lpm (5 gpm)
Maximum internal leakage
65 ml/min (4 in³/min) - Note: At 241 bar (3500 psi)
0 lpm (0 gpm) - Note: From port 1 to 2 with sealed spool
Temperature Ratings
Maximum operating fluid
temperature
-40 to 100 °C (-40 to 212 °F) - Note: With buna N seals
-26 to 204 °C (-15 to 400 °F) - Note: With fluorocarbon seals
-54 to 107 °C (-65 to 225 °F) - Note: With polyurethane seals
Storage temperature
-40 to 70 °C (-40 to 160 °F)
Ambient temperature
-40 to 90 °C (-40 to 194 °F)
Properties
hydraforce.com
10/7/2020
PD08-35
PD08-35
hydraforce.com
PILOTED DIRECTIONAL VALVE
Cartridge weight
0.10 kg (0.22 lb)
Internal wetted surface area
103 cm²; (16.0 in²;)
Dimensions
Materials
Materials
Cartridge: Weight: 0.10 kg (0.22 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N seals
standard.
Standard Ported Body : Weight: 0.36 kg (0.80 lb); Anodized high-strength aluminum alloy, rated to 207 bar (3000
psi). Ductile iron bodies available; dimensions may differ.
Installation Specifications
hydraforce.com
10/7/2020
PD08-35
PD08-35
hydraforce.com
PILOTED DIRECTIONAL VALVE
Cavity
VC08-3
Cartridge installation torque
25.8 to 28.5 N-m (19 to 21 ft-lb)
Maximum allowable torque
47.6 N-m (35 ft-lb)
Orientation restriction
None
Accessories
Seal kit
SK08-3X-MM - Note: X = seal option
Housings
Order code
hydraforce.com
10/7/2020
PD08-35
