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A high performance, screw-in, cartridge-style, pilot-operated, spool-type, hydraulicdirectional valve for two-way circuits requiring remote pilot actuation and vented spring chamber.
In neutral (unpiloted), the HPD42-M45 allows flow from 3 to 2 bidirectionally. The spring chamber is directed to port 4.
On remote pilot signal at 1, the valve shifts to block 3 to 2 bidirectionally.
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.
• Multiple function/application potential.
• Smooth shift transition.
• Low pressure drop.
• Hardened spool and cage for long life.
• Optional sealed pilot.
• Industry-standard ISO cavity.
• All HyPerformance products are tested to the rigorous standards of NFPA specification T2.6.1.
• All HyPerformance products are tested at a verification level of 90% and an assurance of 99%.
Operating Pressure: 350 bar (5075 psi); 10% cycle life: 420 bar (6090 psi)Note: All HyPerformance products are tested for 900K cycles at 350 bar and 100K at 420 bar
Fatigue Rating: 2 million cycles at 420 bar
Burst Pressure: 1380 bar (20000 psi)
Flow: 265 lpm (70 gpm)
Internal Leakage: 560 ml/min (30 cu. in./minute) max at 350 bar (5075 psi)
Pilot Pressure Required: To Spool Crossover: 5.51 bar (80 psi) with 180 psi bias spring
To Full Spool Shift:
12.4 bar (180 psi) with 180 psi bias spring
Oil Volume Required to Full Shift: 5.07 cu. cm. (0.31 cu. in.)
Temperature: -54°C to 107°C (-65°F to 225°F) with standard PPDI Urethane 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: HVC42-M4 See page 9.142.1
Cavity Tool: HCT42-M4XX; See page 8.600.1
Seal Kit: SK42-4X-MMM; See page 8.650.1
