Flow Control Valves

EC50-30 — Flow Regulator, Pressure Compensated, High Pressure
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EC50-30 Valve

EC50-30 Valve symbol


A screw-in, cartridge-style, pressure-compensating element, intended for use with a
remote fixed or variable orifice to yield a two-port-type, pressure-compensated, flow regulating
hydraulic valve for use in high pressure circuits.

The EC50-30 maintains a constant flow rate from 2 regardless of load pressure changes in
the circuit downstream of 2.
The cartridge maintains a constant differential pressure from circuit point P to port 3, thereby
regulating the hydraulic flow rate between the two points in the circuit.

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

Operating Pressure: 345 bar (5000 psi)
Regulated Flow Rate: 30.3 lpm (8.0 gpm) maximum
Standard Compensator Bias Spring: 5.5 bar (80 psi)
Flow Maintenance: ±10% from 0.38 to 38 lpm (0.1 to 10 gpm)
   at pressures from 5.5 to 345 bar (80 to 5000 psi)
Temperature: -54° to 107°C (-65°F to 225°F) with Polyurethane 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: VC10-3; See page 9.110.1_3w
Cavity Tool: CT10-3xx; See page 8.600.1
Seal Kit: SK10-3P-TB; See page 8.650.1




EC50-30 Flow vs. Pressure



EC50-30 Valve Dimensions



Cartridge: Weight: 0.11 kg (0.25 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Polyurethane
O-rings and fluorocarbon back-ups standard.

Standard Ported Body:
Weight: 0.64 kg
(1.41 lb); Ductile Iron (code "D")
standard, consult factory for weight,
dimensions may differ. Rated to
345 bar (5000 psi). See page 8.010.1_3w



EC50-30 Ordering