Valves - Flow Controls - Pressure Compensator - Priority Type - Pre-Compensator - Dynamic Load Sense

EC42-M43

PRIORITY ON DEMAND PRESSURE COMPENSATING ELEMENT WITH DYNAMIC LOAD SENSE

Overview

Description

EC42-M43 is a screw-in, cartridge style, priority on demand pressure compensator with dynamic load sense, intended to provide priority flow in required amount, while allowing excessive flow to be used for auxiliary functions

note: 0.031 in 0.79 mm orifice recommended to be installed in load sense line at port 1 for better stability

Operation

With inlet flow at port 3, the EC42-M43 will deliver required flow at port 4 regardless of load pressure. Excessive flow exits at port 2. Port 1 is the load sense port

Features

  • Hardened parts for long life.
  • Quiet, modulated response.
  • Industry-common cavity.

Ratings

Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Flow Ratings
Inlet flow rating:
  • 303 lpm (80 gpm)
Priority flow rating:
  • 246 lpm (65 gpm) With 15.2 bar (220 psi)compensating spring
  • 208 lpm (55 gpm) With 10.3 bar (150 psi)compensating spring
  • 151 lpm (40 gpm) With 5.5 bar (80 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)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM b117 (model number - gec42-m43)

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

Unit weight:
  • 1.58 kg (3.48 lb)
Internal wetted surface area:
  • 781.5 cm² (121.1 in²)

Performance

EC42-M42_Flow-Pressure

Dimensions

EC42-M40_Dim

Materials

Materials

Cartridge: Weight: 1.56 kg (3.44 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight: 2.8 kg (6.2 lb) Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.

Installation Specifications

Cavity:
Cartridge installation torque:
  • 88 to 102 N-m (65 to 75 ft-lb)
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK42-4X-MMM X = seal option

Order Code

POSITION
CODE
DESCRIPTION
EC42-M43-H-J-R
H
Line Body
H
0
No Body
H
16T
Aluminum SAE 16
H
20T
Aluminum SAE 20
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Compensator Spring
R
80
80 Compensator Spring
R
110
110 Compensator Spring
R
150
150 Compensator Spring
R
220
220 Compensator Spring
EC42-M43_Order