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
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)
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

Cartridge 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
VC42-M4
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