Directional Valves — HyPerformance

HPD42-S50 — Piloted, 3-Way, Spool Valve
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HPD42-S50 Valve

HPD42-S50 Valve symbol

A high pressure, screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve
for three-way circuits requiring remote pilot actuation.

When in neutral, the HPD42-S50 allows flow from 3 to 2 bidirectionally while flow is blocked at 4.
On remote pilot signal at 1, the valve's spool shifts to allow flow between 3 and 4 while blocking at 2.
The spring chamber is vented to the tank through port 5.The vented spring chamber allows the valve to
be fully pressurized at 1, 2, 3, and 4 without affecting required pilot pressure at 5. Pressure at port 5
will increase the required pilot pressure at a 1:1 ratio.

• Hardened spool and cage for long life.
• All HyPerformance products are tested to the rigorous standards of the NFPA specification T2.6.1.
• All HyPerformance valves 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.
Flow: up to 265 lpm (70 gpm) with seal option N, V and U.
   246 lpm (65 gpm) with seal options NS, VS and US.
Fatigue Rating: 2 million cycles at 420 bar
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Maximum Internal Leakage at 350 bar (5075 psi) at 32 cSt.
   Ports 3-4: 328 ml/min. (20
   Ports 3-2: 492 ml/min. (30 Pilot Pressure 350 bar (5075 psi)
   Ports 3-4: 410 ml/min. (25
   Ports 3-2: 655 ml/min. (40 Pilot Pressure 350 bar (5075 psi)
Temperature: -54° to 107°C (-65°F to 225°F) with 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-S5; See page 9.142.1_5w
Cavity Tool: HCT42-S5xx; See page 8.600.1
Seal Kit: HSK42-S5U-0000 (Urethane); See page 8.650.1


HPD42-S50 Performance Chart

HPD42-S50 Performance Chart


Cartridge: Weight: 1.9 kg. (4.2 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces. PPDI
Urethane seals and no back-up rings standard.

Ported Body: Weight: 14.0 kg. (30.9 lbs.); H-series ductile iron standard. Rated to 345 bar (5000 psi). See page 8.042_5w.

HPD42-S50 Ordering Chart

Selection guide - similar valves.
PDF file of this page. Request a quote.