DIRECTIONAL VALVES
PD42-M41 Piloted 3-Way Spool, Internal Vent
USASI: ISO:
SYMBOLS
4.348.1
PERFORMANCE (Cartridge Only)
13.8/200
10.3/150
6.9/100
3.4/50
37.8
10
75.7
20
113.6
30
151.4
40
FLOW lpm/gpm
PRESSURE DROP bar/psi
189.3
50
227.1
60
265.0
70
to or to
32 cSt/150 ssu oil at 40°C
➂➂➃➁
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 fl ow from ➂ to ➃ while ➁ is blocked.
On remote pilot signal at
➀, the valve shifts to open from the ➂ to ➁ fl ow path, while
blocking fl ow to
➃.
Note that
➃ is common to the spring chamber. Pressure on ➃ 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 fl ow 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-standard ISO cavity.
RATINGS
Maximum Operating Pressure: With Polyurethane Seals: Ports ➀, ➁, & ➂: 345 bar
(5000 psi); Port
➃: 210 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage at Maximum Operating Pressure:
Ports
➁, ➂, & ➃: 246 cc/minute (15 cu. in./minute);
Port
➀: 524 cc/minute (32 cu. in./minute)
With the sealed pilot there is no leakage at
➀ 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 120°C with standard Buna 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
Cavity Tool: CT42-M4XX; See page 8.600.1
Seal Kit: SK42-4X-MMM; See page 8.650.1
OPEN TRANSITION:
HYDRAFORCE
.com
®
Blue rectangles are links to other catalog pages.