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.

Ratings

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
Maximum 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)

Operating Parameters

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

Properties

Cartridge weight
0.15 kg (0.32 lb)
Internal wetted surface area
116 cm² (18.0 in²)

Performance

EP10-S38_Perf_Dim

Materials

Materials

Cartridge: Weight: 0.15 kg (0.32 lb) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and polyester elastomer back-ups standard.

Ported Body : Weight: 0.32 kg (0.70 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.

Installation Specifications

Cavity
VC10-S3
Cartridge installation torque
32.5 to 35.3 N-m (24 to 26 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK10-S3X-MM X = seal option

Order code

POSITION
CODE
DESCRIPTION
EP10-S38-H-J-R
H
Line Body
H
0
No Body
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
80
80 psi Bias Spring
R
160
160 psi Bias Spring
EP10-S38_Order