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

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.

Ratings

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 lpm (160 psi)compensating spring
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)

Operating Parameters

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

Properties

Cartridge weight
0.30 kg (0.66 lb)
Internal wetted surface area
227.6 cm² (35.28 in²)

Performance

EC12-30_Flow-Pressure

Dimensions

EC12-30_Dim

Materials

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.

Installation Specifications

Cavity
VC12-3
Cartridge installation torque
45 to 50 N-m (33 to 37 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK12-3X-MM X = seal option

Order code

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
EC12-30_Order