HEP42-S38 HyPerformance (HEP42-S38)
A high-pressure poppet-type, screw-in, cartridge-style, spring-biased, bi-directional blocking-type hydraulic directional element with multi-function potential when used with other directional, pressure, or flow control devices.
Product Operation
The HEP42-S38 is a spring-biased poppet valve which will block 1 to 2 or 2 to 1 until pressure at 1 or 2 exceeds the cumulative pressure at 3 and bias spring. With no pressure at 3, flow will be allowed from 1 to 2 or 2 to 1 once the bias spring force is overcome with pressure at 1 or 2. When the element is in the closed state, the ratio of areas 1 and 2 is 1:1, and the ratio of areas 1 or 2 to 3 is 1:2.
Product Features
• Multiple function/application potential.
• Low pressure drop.• 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%.
Product Ratings
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 (6090 psi)
Proof Pressure: 690 bar (10,000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow: Up to 284 lpm (75 gpm)
Internal Leakage: 12 drops/minute max. at 350 bar (5075 psi)
Operating Temperature: -54 to 107°C (-65 to 225°F) with Urethane seals
Ambient Temperature: -40 to 90°C (-40 to 194°F)
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-S3; See page 9.142.1
Cavity Tool: HCT42-S3XX; See page 8.600.1
Seal Kit: SK42-S3U-OO with Urethane seals; See page 8.650.1
