Directional Valves

EP20-S39 — Vented Poppet–Type Logic Element
   Selection guide - similar valves.
   PDF file of this page.
   STP file for EP20-S39.
   Request a quote.

EP20-S39 Valve

EP20-S39 Valve symbol

A poppet-type, screw-in, cartridge-style, spring-biased, bi-directional blocking-type hydr
ulic valve with two built-in checks. When used in conjunction with a small pilot solenoid valve,
the EP20-S39 is ideal for either high-flow double-blocking circuits or selector circuits. The
integral two-check system prevents leakage, maintaining the pilot signal regardless of the
transition or the work-port pressure changes.

The EP20-S39 will allow flow from 1 to 2 or 2 to 1 only when 3 is vented to create a pressure
drop across the internal orifice which exceeds the pressure value of the bias spring. When the
element is in the neutral (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.

• Multiple function/application potential.
• Low pressure drop.
• Industry common cavity.

Max. Operating Pressure: Cartridge Only: Ports 1 & 2: 241 bar (3500 psi);
Flow: Up to 285 lpm (75 gpm)
Internal Leakage: 0.6 cc/minute (12 drops/minute) max. at 241 bar (3500 psi)
Operating Temperature: -40 to 100°C (-40 to 212°F) with Buna seals;
   -26 to 204°C (-15 to 400°F) with fluorocarbon seals;
   -54 to 107°C (-65 to 225°F) with polyurethane 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_3w
Cavity Tool: CT20-S3xx; See page 8.600.1
Seal Kit: SK20-S3x-MM; See page 8.650.1


EP20-S39 Performance
EP20-S39 Valve Dimensions


Cartridge: Weight: 0.84 kg (1.85 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces. Buna N
O-rings and polyester elastomer back-ups standard.

Ported Body: Weight: 1.65 kg (3.65 lb)
Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar
(3000 psi). Ductile iron bodies available; dimensions may differ.
See page 8.020.1_3w.

EP20-S39 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP File for EP20-S39 Request a quote.