Flow Control Valves

EC42-M43 — Pressure Compensator, with Dynamic Load Sense
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EC42-M43 Valve

SYMBOL:
EC42-M43 Valve symbol

 

DESCRIPTION
A screw-in, cartridge-style, priority-on-demand, pressure-compensator with dynamic load sense.

OPERATION
The EC42-M43 provides priority flow in the required amount, while allowing excess flow to be used for auxiliary
functions. With port 3 providing inlet flow, port 4 will deliver the required priority flow regardless of load pressure.
Excess flow exits at 2. Port 1 is the load sense port. All ports may be fully pressurized.
Note: 0.031 in. (0.79 mm) orifice is recommended to be installed in the load sense line at port 1 for better
stability.

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

RATINGS
Operating Pressure: 240 bar (3500 psi) maximum
Input Flow: 303 lpm (80 gpm) maximum
Priority Flow: 208 lpm (55.0 gpm) maximum with 10.3 bar (150 psi) spring;
   151 lpm (40.0 gpm) maximum with 5.5 bar (80 psi) spring
Bypass Flow: 208 lpm (55.0 gpm) maximum with 10.3 bar (150 psi) spring;
   151 lpm (40.0 gpm) maximum with 5.5 bar (80 psi) spring
Flow Maintenance: See performance chart
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC42-M4; See page 9.142.1_4w
Cavity Tool: CT42-M4xx; See page 8.600.1
Seal Kit: SK42-4x-MMM; See page 8.650.1



 

 

PERFORMANCE:

EC42-M43 Flow vs. Pressure

 

DIMENSIONS:

EC42-M43 Valve Dimensions

 

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. See page 8.042.1_4w

 

ORDERING CHART:

EC42-M43 Ordering