Directional Valves — HyPerformance

HPE42-S51 — Piloted, Proportional, Spool-Type Valve
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HPE42-S51 Valve

HPE42-S51 Valve symbol

A proportional, pilot-operated, screw-in, cartridge-style, spool-type, hydraulic directional valve for
use in high pressure applications.

When in neutral, the HPE42-S51 allows flow between ports 2, 3 and 4. On remote pilot signal at 1, the valves
spool shifts proportionally to the applied pilot pressure to gradually close flow paths until the spool is fully shifted,
blocking all ports. The spring chamber is vented to the tank through port 5. Pressure at port 5 will directly (1:1)
affect the pilot pressure required and must be added to the bias spring value.

• 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.
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow: 170 lpm (45 gpm)
Internal Leakage: 740 ml/minute (45 cu. in./minute) at 350 bar (5075 psi)
Cycle Life: One million cycles.
Operating Temperature: -54° to 107°C (-65° 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


HPE42-S51 Valve Performance Charts


HPE42-S51 Dimensions


Cartridge: Weight: 2.0 kg. (4.4 lbs.) Steel with hardened work surfaces. Zinc-plated exposed surfaces. PPDI Urethane seals without back-up rings standard.

Ported Body: Weight: 14.12 kg. (31.14 lbs.);
H-series ductile iron standard. Rated to
345 bar (5000 psi). See page 8.042.1_5w.

HPE42-S51 Ordering Chart

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