Directional Valves

PD08-41 — Piloted, Spool Valve
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PD10-41 Valve

SYMBOL:
PD10-41 Valve symbol

OPEN TRANSITION OPTION:

HPD16-S60 Valve symbol
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve.

OPERATION
In neutral (unpiloted), the PD08-41allows flow from 3 to 4 bidirectionally, while
port 2 is blocked. On remote pilot signal at 1, the valve shifts to open from 3 to 2,
while blocking flow to 4. Since 4 is common to the spring chamber, pressure on 4
will directly (1:1) affect the pilot pressure required, and must always be added to
the bias spring value.

FEATURES
• Bidirectional operation.
• Open transition spool option.
• Sealed spool option for zero leakage.
• Corrosion-resistant, 960-salt spray plating option.
• Hardened spool and cage for long life.
• Industry common cavity.

RATINGS
Operating Pressure: 241 bar (3500 psi)
Flow: See Performance Chart
Maximum Internal Leakage at 207 bar (3000 psi): 82 cc/minute (5 cu. in./minute)
   from port 1 to 2 or port 2 to 3; zero leakage from port 1 to 2 with sealed spool.
Temperature: -40 to 100°C (-40 to 212°F) with Buna seals;
   -26 to 204°C (-15 to 400°F) with fluorocarbon seals;
   -54 to 107°C (-65 to 225°F) with polyurethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC08-4; See page 9.108.1_4w
Cavity Tool: CT08-4xx; See page 8.600.1
Seal Kit: SK08-4x-MMM (X = Seal Option); See page 8.650.1

 

 

 

 

PERFORMANCE:

HPD16-S60 Flow vs Pressure

 

DIMENSIONS:

HPD16-S60 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.11 kg (0.24 lb)
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 lb) Anodized high-strength aluminum
alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.008.1_4w.

 

ORDERING CHART:

HPD16-S60 Ordering Chart