Valves - Directional Controls - Logic Element - Pilot to Close

EP12-S35

DIRECTIONAL ELEMENT, PILOTED

Overview

Description

The ep12-s35xx 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.
  • Manual override option available with 80 psi spring.

Ratings

Pressure Ratings
Pressure rating
345 bar (5000 psi)
Flow Ratings
Flow rating
See performance graph
Maximum internal leakage
131 ml/min (8 in³/min) At
345 bar (5000 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
-26 to 204 °C (-15 to 400 °F) With high durometer 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)

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

Performance

EP12-S35_Perf_Chrt

Dimensions

EP12-S35_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.23 kg (0.5 lb) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and polyester elastomer back-ups standard.

Ported Body : Weight: 1.13 kg (2.5 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

Accessories

Order code

POSITION
CODE
DESCRIPTION
EP12-S35CF-H-J-R
C
Tall Cap
C
BLANK
Standard Cap
C
T
Tall Cap
F
Stroke Limiter
F
BLANK
Standard
F
M
Stroke Limiter
H
Line Body
H
0
No Body
H
12T
Aluminum SAE 12
H
12TD
Ductile Iron SAE 12
H
6BD
Ductile Iron BSPP 3/4" (6)
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
100
100 psi Bias Spring
R
160
160 psi Bias Spring
R
240
240 psi Bias Spring
EP12-S35_Order