SYMBOL:
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DESCRIPTION
A screw-in, cartridge-style, priority-on-demand, pressure-compensator with a dynamic load sense,
intended to provide priority flow in the required amount, while allowing excess flow to be used for
auxiliary functions.
OPERATION
With inlet at port 3, the EC12-43 will deliver required priority flow at 4, based on the size of the external orifice, regardless of load pressure. Excess flow exits, or is bypassed, at port 2. Port 1 is the load sense port. All ports may be fully pressurized.
FEATURES
• Hardened parts for long life.
• Quiet, modulated response.
• Industry-common cavity.
RATINGS
Operating Pressure: Inlet: 345 bar (5000 psi) maximum;
Note: Steel body required when used at pressures above 207 bar (3000 psi)
Maximum Regulated Flow: 95 lpm (25 gpm) with 160 psi compensating spring;
68 lpm (18 gpm) with 80 psi compensating spring
Priority Flow Rate: Up to 80% of input flow
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: VC12-4; See page 9.112.1_4w
Cavity Tool: CT12-4xx; See page 8.600.1
Seal Kit: SK12-4x-MMM; See page 8.650.1 |
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DIMENSIONS:
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MATERIALS:
Cartridge: Weight: 0.46 kg. (1.02 lbs.);
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 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions
may differ. See page 8.012.1_4w |
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ORDERING CHART:
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