Flow Control Valves

EC16-43 — Pressure Compensator,Priority-On-Demand with Dynamic Load Sense
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EC16-43 Valve

SYMBOL:
EC16-43 Valve symbol

 

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 flow at port 3, the EC16-43 will deliver required priority flow at 4, regardless of load
pressure. Excess flow exits at 2. Port 1 is the load sense port. All ports may be fully
pressurized.

FEATURES
• Priority-on-demand
• Dynamic load sense
• Hardened parts for long life.
• Quiet, modulated response.
• Industry-common cavity.

RATINGS
Operating Pressure: 240 bar (3500 psi) maximum
Proof Pressure: 690 bar (10,000 psi)
Burst Pressure: 1275 bar (18,500 psi)
Input Flow: 189 lpm (50 gpm) with 15.2 bar (220 psi) compensating
   150 lpm (40 gpm) with 10.3 bar (150 psi) compensating spring;
   115 lpm (30 gpm) with 5.5 bar (80 psi) compensating spring.
Priority Flow Rate: 80% of maximum input flow when priority pressure exceeds
   bypass pressure. 50% of maximum input flow when bypass pressure exceeds
   priority pressure.
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with fluorocarbon seals;
   -54 to 107°C (-65 to 225°F) with polyurethane or urethane 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: VC16-4; See page 9.116.1_4w
Cavity Tool: CT16-4-xxx; See page 8.600.1
Seal Kit: SK16-4x-MMM; See page 8.650.1



 

 

PERFORMANCE:

EC16-43 Flow vs. Pressure

 

EC16-43 Flow vs. Pressure

 

DIMENSIONS:

EC16-43 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.56 kg (1.23 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. See page 8.016.1_4w.

 

ORDERING CHART:

EC16-43 Ordering