Cartridge Valves - Directional Control Valves - Logic Element - Pilot To Close

EP20-S35

DIRECTIONAL ELEMENT, PILOTED

Overview

Description

The EP20-S35 is a screw-in, cartridge style, pilot to close hydraulic directional element.

Operation

The valve is a spring-biased blocking valve which will shift to allow full flow from port 1 to 2 only when the pressure at port 1 exceeds the cumulative pressure of port 3, plus the bias spring pressure value.

Features

  • Multiple function/application potential.
  • Low pressure drop.
  • Industry common cavity.
Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi)
Flow Ratings
Flow rating:
  • See performance graph
Maximum internal leakage:
  • 197 ml/min (12 in³/min) At 345 bar (5000 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • Gep20-s35 - 960 hour salt spray per ASTM b117
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 20/18/14 per ISO 4406
Unit weight:
  • 0.77 kg (1.7 lb)
Internal wetted surface area:
  • 412 cm² (63.9 in²)
EP20-S35_Perf_Chrt(2022-02-24)
EP20-S35_Dim_Dwg(2022-02-24)
Cavity:
Cartridge installation torque:
  • 88 to 102 N-m (65 to 75 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK20-S3X-MM X = seal option
EP20-S35_Order(2022-02-24)

Model Options

EP20-S35-H-J-R
H Line Body
CODE
DESCRIPTION
0
No Body
16T
Aluminum SAE 16
16TD
Ductile Iron SAE 16
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane
R Spring
CODE
DESCRIPTION
20
20 psi Bias Spring
80
80 psi Bias Spring
160
160 psi Bias Spring