Flow Control Valves

EC12-30 — Flow Regulator, Pressure Compensated
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EC12-30 Valve

SYMBOL:
EC12-30 Valve symbol

 

DESCRIPTION
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.

OPERATION
The EC12-30 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.

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

RATINGS
Operating Pressure: 240 bar (3500 psi)
Regulated Flow Rate: 58 lpm (15 gpm) maximum
Standard Compensator Bias Spring: 5.5 bar (80 psi)
Flow Maintenance: ±10% from 0.38 to 58 lpm (0.1 to 15 gpm)
   at pressures from 5.5 to 207 bar (80 to 3000 psi)
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: VC12-3; See page 9.112.1_3w
Cavity Tool: CT12-3xx; See page 8.600.1
Seal Kit: SK12-3x-MM; See page 8.650.1



 

 

PERFORMANCE:

EC12-30 Flow vs. Pressure

 

DIMENSIONS:
EC12-30 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.23 kg (0.50 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups
standard.

Standard Ported Body:
Weight: 1.13 kg
(2.5 lb); 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_3w

 

ORDERING CHART:

EC12-30 Ordering