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A poppet-type, screw-in, cartridge-style, hydraulic directional element, with multi-function potential when used with other directional, pressure, or flow control devices.
The EP20-S38 is a spring-biased poppet valve which will block ➀ to ➁ or ➁ to ➀ until pressure at ➀ or ➁ exceeds the cumulative pressure at ➂ and bias spring. With no pressure at ➂, flow will be allowed from ➀ to ➁ or ➁ to ➀ once the bias spring force is overcome with pressure at ➀ or ➁. When the element is in the closed state, the ratio of areas ➀ and ➁ is 1:1, and the ratio of areas ➀ or ➁ to ➂ is 1:2.
• Multiple function/application potential.
• Low pressure drop.
• Industry common cavity.
Maximum Operating Pressure: Cartridge Only: Ports ➀ & ➁, 241 bar (3500 psi)
Flow: See Performance Chart
Internal Leakage: 0.6 cc/minute (12 drops/minute) max. at 241 bar (3500 psi)
Bias Spring Pressure Options: 2.8 bar (40 psi); 11.0 bar (160 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: VC20-S3; See page 9.120.1
Cavity Tool: CT20-S3xx; See page 8.600.1
Seal Kit: SK20-S3x-MM; See page 8.650.1
