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

EC12-40

PRESSURE COMPENSATOR

Overview

Description

A screw in, cartridge style pressure compensating element,intended for use with a remote fixed or variable orifice to yield a three port (bypass type), pressure compensated, flow - regulating hydraulic valve

Operation

The EC12-40 maintains a constant flow rate from port 3 regardless of load pressure changes in the circuit downstream of port 3. The cartridge maintains a constant differential pressure from circuit point P to port 3 (see USA/SI symbol), thereby regulating the hydraulic flow rate between the two points in the circuit. The EC12-40 is a priority type regulator, delivering pump flow first to port 3, then bypassing excess to port 2. All ports maybe fully pressurized

Features

  • Hardened parts for long life.
  • Quiet, modulated response.
  • Cost-effective cavity.

Ratings

Pressure Ratings
Pressure rating
240 bar (3500 psi)
Flow Ratings
Inlet flow rating
120 lpm (32 gpm) Maximum
Regulated flow
80 lpm (21 gpm) Maximum, with spring 11 bar (160 psi)
Flow maintenance
% From 7.57 to 75.7 lpm (2 to 20 gpm)

Performance

EC12-40_Flow-Orifice

Dimensions

EC12-40_Dim

Materials

Materials

Cartridge: Weight: 0.28 kg (0.61 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight: 1.5 kg (3.3 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Installation Specifications

Accessories

Order code

POSITION
CODE
DESCRIPTION
EC12-40-H-J-R
H
Line Body
H
0
No Body
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
60
60 Compensator Spring
R
75
75 Compensator Spring
R
100
100 Compensator Spring
R
160
160 Compensator Spring
EC12-40_Order