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.
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)
EC12-40_Flow-Orifice
EC12-40_Dim

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.

EC12-40_Order
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