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A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve for three-way circuits requiring remote pilot actuation.
In neutral (unpiloted), the PD42-M45 allows flow from ➂ to ➁ bidirectionally. The spring chamber is directed to port ➃On remote pilot signal at ➀, the valve shifts to block ➂ to ➁ bidirectionally.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.
• Hardened spool and cage for long life.
• Optional sealed pilot.
• Industry-standard ISO cavity.
Maximum Operating Pressure: With Polyurethane Seals: Ports ➀, ➁ & ➂: 344 bar (5000 psi); Port ➃: 210 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage: 246 ml/minute (15 cu. in./minute) max. at 344 bar (5000 psi)
Pilot Pressure Required: To Spool Crossover: 13 bar (188 psi)
To Full Spool Shift:
17.2 to 27.6 bar (250 to 400 psi)
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
