Directional Valves

PD42-M41 — Piloted, 3-Way, Spool Valve, Internal Vent
  Selection guide - similar valves.
  PDF file of this page
  STP file for PD42-M41
  Request a quote

PD42-M41 Valve

SYMBOL:
PD42-M41 Valve symbol
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve
for three-way circuits requiring remote pilot actuation.

OPERATION
In neutral (unpiloted), the PD42-M41 allows flow from 3 to 4 while 2 is blocked.
On remote pilot signal at 1, the valve shifts to open from the 3 to 2 flow path,
while blocking flow from 4. Note that 4 is common to the spring chamber.
Pressure on 4 will directly (1:1) affect required pilot pressure and must always
be added to the bias spring value.
Note: Consult factory for applications where bi-directional flow is required when
the valve is in the normal or spring-offset position.

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

RATINGS
Operating Pressure: with Polyurethane seals: Ports 1, 2, & 3: 345 bar (5000 psi);
   Port 4: 210 bar (3000 psi)
Flow: up to 265 lpm (70 gpm)
Internal Leakage at maximum operating pressure: Ports 2, 3, & 4: 246 cc/minute (15 cu. in./minute);
   Port 1: 524 cc/minute (32 cu. in./minute);
   With the sealed pilot there is no leakage at 1 at maximum operating pressure
Pilot Pressure Required:
   To Begin Spool Movement: 11 bar (160 psi)
   To Bring Spool to Cross-Over Point: 16.2 bar (235 psi)
   To Fully Shift the Spool: 18.3 bar (265 psi)
Oil Volume Required to Full Shift: 2.5 cc (0.15 cu. in.)
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: VC42-M4; See page 9.142.1_4w
Cavity Tool: CT42-M4xx; See page 8.600.1
Seal Kit: SK42-4x-MMM; See page 8.650.1

 


PERFORMANCE:

SV20-S39 Valve Performance Graph


DIMENSIONS:

SV12-34 Valve Dimensions

 


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. See page 8.042.1_4w

 

ORDERING CHART:

PD42-M41 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for PD42-M41. Request a quote.