Directional Valves

EP12-S35 — Piloted, Spool-Type, Directional Element
   Selection guide - similar valves.
   PDF file of this page.
   STP file for EP12-S35.
   Request a quote.

EP12-S35 Valve

SYMBOL:
EP12-S35 Valve symbol

 

DESCRIPTION
A spool-type, screw-in, cartridge-style, hydraulic directional element, with multifunction
potential when used with other directional, pressure, or flow control devices.

OPERATION
The EP12-S35 is a spring-biased blocking valve which will shift to allow full flow from 1 to 2
only when pressure at 1 exceeds the cumulative pressure of 3, plus the bias spring pressure value.
EP12-35 is a pilot-to-close directional valve. With no pressure at 3, flow will be allowed from 1 to 2
once the bias spring force is overcome with pressure at 1.

FEATURES
• Multiple function/application potential.
• Low pressure drop.
• Industry-common cavity.
• Manual override option available with 80 psi spring.

RATINGS
Operating Pressure: Cartridge only: 345 bar (5000 psi) with polyurethane seals;
   Aluminum housing: 207 bar (3000 psi); Ductile iron housing: 345 bar (5000 psi)
Flow: Up to 151 lpm (40 gpm)
Internal Leakage: 131 cc/minute (8 cu. in. per minute) max. at 350 bar (5000 psi)
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°F 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: VC12-S3; See page 9.112.1_3w
Cavity Tool: CT12-S3xx; See page 8.600.1
Seal Kit: SK12-S3x-MM; See page 8.650.1



 

 

PERFORMANCE:

EP12-S35 Valve Performance Chart

 

DIMENSIONS:

EP12-S35 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.23 kg (0.5 lb)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces. Buna N
O-rings and polyester elastomer back-ups standard.

Ported Body: Weight: 1.13 kg
(2.5 lb) Anodized high-strength 6061
T6 aluminum alloy, rated to 207 bar
(3000 psi). Ductile iron bodies are
available for pressures up to 350 bar
(5000 psi); Weight and dimensions
may differ. See page 8.012.1_3w

 

ORDERING CHART:

EP12-S35 Ordering Chart