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EC12-30

FLOW ON DEMAND PRESSURE COMPENSATING ELEMENT WITH STATIC LOAD SENSE

Overview

Description

EC12-30 is a screw-in cartridge style pressure compensator element, intended for use with remote fixed or variable orifice to yield a two port type, pressure compensated, flow regulating hydraulic valve

Operation

This valve maintains a constant flow rate from port 2 regardless of load pressure changes in the circuit downstream of port 2. This valve maintains a constant differential pressure from circuit point P to port 3 (see symbol), thereby regulating the hydraulic flow rate between the two points in the circuit

Features

  • Hardened parts for long life.
  • Quiet, modulated response.
  • Industry-common cavity.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Flow Ratings
Flow rating:
  • 37.9 lpm (10.0 gpm) With 6.9 bar (100 psi)compensating spring
  • 56.8 lpm (15.0 gpm) With 11.0 bar (160 psi)compensating spring
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)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.30 kg (0.66 lb)
Internal wetted surface area:
  • 227.6 cm² (35.28 in²)
EC12-30_Flow-Pressure
EC12-30_Dim

Materials

Cartridge: Weight: 0.23 kg (0.50 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

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 available; dimensions may differ.

Cavity:
Cartridge installation torque:
  • 45 to 50 N-m (33 to 37 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK12-3X-MM X = seal option
EC12-30_Order
POSITION
CODE
DESCRIPTION
EC12-30-H-J-R
H
Line Body
H
0
No Body
H
8T
Aluminum SAE 8
H
10T
Aluminum SAE 10
H
12T
Aluminum SAE 12
H
12TD
Ductile Iron SAE 12
H
6B
Aluminum BSPP 3/4" (6)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Compensator Spring
R
100
100 Compensator Spring
R
160
160 Compensator Spring