Valves - Directional Controls - Logic Element - Vent to open

EV20-S34

DIRECTIONAL ELEMENT, VENTED

Overview

Description

The EV20-S34 is a screw-in, cartridge style, hydraulic directional element. It is a spring biased blocking valve which will shift to allow full flow from port 1 to 2 only when port 3 is vented to create a pressure drop across the internal orifice which exceeds the bias spring pressure value.

NOTE: Orifice disc should not be used with this product.

Features

  • Multiple function/application potential.
  • Smooth shift transition.
  • Low pressure drop.
  • Industry common cavity.
Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi) Polyurethane seals are recommended for 5000 psi [345 bar]
Flow Ratings
Maximum internal leakage:
  • 197 ml/min (12 in³/min) At 5000 psi 345 bar
Temperature Ratings
Operating fluid temperature:
  • -40 to 204 °C (-40 to 400 °F)
Unit weight:
  • 0.82 kg (1.8 lb)
EV20-S34_Perf_Chrt(2022-02-24)
EV20-S34_Dim_Dwg(2022-02-24)
Cavity:
Cartridge installation torque:
  • 88 to 102 N-m (65 to 75 ft-lb)
Seal kit:
  • SK20-S3N-MM Buna N
  • SK20-S3V-MM Viton
  • SK20-S3P-MM Polyurethane
EV20-S34_Order(2022-02-24)
POSITION
CODE
DESCRIPTION
EV20-S34-H-J-R
H
Line Body
H
0
No Body
H
16T
Aluminum SAE 16
H
16TD
Ductile Iron SAE 16
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
20
20 psi Bias Spring
R
50
50 psi Bias Spring
R
80
80 psi Bias Spring
R
160
160 psi Bias Spring