Valves - Directional Controls - Logic Element - Pilot to Close

EP08-35

DIRECTIONAL ELEMENT, PILOTED

Overview

Description

The EP08-35 is a screw-in, cartridge style, spool type, hydraulic directional element

Operation

The EP08-35 is a spring-biased blocking valve, which will open port 1 to 2 when pressure at port 1 exceeds the cumulative pressure at port 3 and the bias spring pressure value. With no pressure at port 3 flow will be allowed from port 1 to 2 once the bias spring force is overcome with pressure at port 1

Features

  • Multiple function/application potential.
  • Low pressure drop.
  • Compact size.
  • Industry-common cavity.
Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi)
Flow Ratings
Flow rating:
  • See performance graph
Maximum internal leakage:
  • 164 ml/min (10 in³/min) At 207 bar (3000 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 90 °C (-40 to 194 °F)
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:
  • 0.1 kg (0.22 lb)
Internal wetted surface area:
  • 101 cm² (15.6 in²)
EP08-35_Perf_Chrt
EP08-35_Dim_Dwg

Materials

Cartridge: Weight: 0.11 kg (0.25 lb); Steel with Zinc-plated exposed surfaces; Buna N O-rings and back-ups standard.

Ported Body : Weight: 0.64 kg (1.41 lb); Ductile iron (code ‘D’); dimensions may differ from illustration above; rated to 345 bar (5000 psi);

Ported Body : Weight: 0.36 kg (0.80 lbs); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (300 psi);

Cavity:
Cartridge installation torque:
  • 25.8 to 28.5 N-m (19 to 21 ft-lb)
Maximum allowable torque:
  • 54.2 N-m (40 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK08-3X-MM X = seal option
EP08-35_Order
POSITION
CODE
DESCRIPTION
EP08-35D-H-J-R
D
Cage Option
D
BLANK
Standard Cage
D
G
Meteering (staggered holes)
H
Line Body
H
0
No Body
H
4T
Aluminum SAE 4
H
6T
Aluminum SAE 6
H
6TD
Ductile Iron SAE 6
H
8TD
Ductile Iron SAE 8
H
3B
Aluminum BSPP 3/8" (3)
H
3BD
Ductile Iron BSPP 3/8" (3)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
10
10 psi Bias Spring
R
40
40 psi Bias Spring
R
80
80 psi Bias Spring
R
110
110 psi Bias Spring
R
150
150 psi Bias Spring