Valves - Flow Controls - Pressure Compensator - Restrictive Type - Post-Compensator

EC50-30

FLOW ON DEMAND PRESSURE COMPENSATING ELEMENT WITH STATIC LOAD SENSE

Overview

Description

EC50-30 is a screw-in, pressure compensating element intended for use with remote fixed or variable orifices to yield a two-port type, pressure compensated flow regulating valve for use in high pressure circuits

Operation

EC50-30 valve maintains a constant flow rate from port 2 regardless of load pressure changes in the circuit downstream of port 2. The valve maintains a constant differential pressure from circuit point P to port 3 (see symbol), thereby regulating 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:
  • 345 bar (5000 psi)
Burst pressure:
  • 1380 bar (20000 psi)
Flow Ratings
Flow rating:
  • 26.5 lpm (7.0 gpm) Maximum, with spring 5.5 bar (80 psi)
  • 37.9 lpm (10.0 gpm) Maximum, with spring 11.0 bar (160 psi)
Temperature Ratings
Operating fluid temperature:
  • -54 to 107 °C (-65 to 225 °F)
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:
  • 0.14 kg (0.30 lb)
Internal wetted surface area:
  • 130 cm² (20.0 in²)
EC10-30_Flow-Pressure
EC10-30_Dim

Materials

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

Standard Ported Body: Weight: 0.64 kg (1.41 lb); Ductile Iron (code "D") standard, consult factory for weight, dimensions may differ. Rated to 345 bar (5000 psi).

Cavity:
Cartridge installation torque:
  • 45 to 50 N-m (33 to 37 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK10-3P-TB Polyurethane
  • SK10-3U-OO Urethane
EC50-30_ORDER
POSITION
CODE
DESCRIPTION
EC50-30-H-J-R
H
Line Body
H
0
No Body
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
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
R
Compensator Spring
R
80
80 Compensator Spring
R
160
160 Compensator Spring