Valves - Directional Controls - Logic Element - Pilot to Close - Double Blocking

EP10-S38

DIRECTIONAL ELEMENT, PILOTED

Overview

Description

The EP10-S38 is a screw-in, cartridge style hydraulic directional element.

Operation

It is a spring biased poppet valve, which will block port 1 to port 2 or port 2 to port 1 until pressure at port 1 or port 2 exceeds the cumulative pressure at port 3 and bias spring, with no pressure at port 3 flow will be allowed from port 1 to port 2 or port 2 to port 1 once the bias spring force is overcome with pressure at port 1 or port 2. When the element is in closed state the ratio of areas port 1 and port 2 is 1:1 and port 1 or port 2 to port 3 is 1:2.

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:
  • 0.2 ml/min (0.012 in³/min) At 241 bar (3500 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:
  • 960 hr salt spray per ASTM b117 (gep10-s38)
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:
  • 0.15 kg (0.32 lb)
Internal wetted surface area:
  • 116 cm² (18.0 in²)
EP10-S38_Perf_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 32.5 to 35.3 N-m (24 to 26 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK10-S3X-MM X = seal option
EP10-S38_Order(2022-02-24)

Model Options

EP10-S38-H-J-R
H Line Body
CODE
DESCRIPTION
0
No Body
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane
R Spring
CODE
DESCRIPTION
80
80 psi Bias Spring
160
160 psi Bias Spring