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    ISO 6284 Size 6/8 (Pressure Relief) Proportional Valves

    ISO 6284 Size 6/8 (Pressure Relief) Proportional Valves

    Proportional Pressure Relief Valves


    K(A)CG-6/8, 1* Series


    General Description


    These two-stage pressure relief valves (based on Vickers type CG2V valves offer extensive application possibilities through their ability to control the pressure setting in proportion to an applied electrical input (up to a pressure limit which is manually adjustable and lockable).

    Basic Characteristics

    • Max. pressure 350 bar (5000 psi)
    • Max. flow rate 400 L/min (106 USgpm)

    KCG-6/8

    The valve responds to variations of current input to its solenoid, for which separate Vickers drive amplifiers, with PWM output stage and output current control, are available.

    The proportional pilot control stage is a Vickers type KCG-3 valve.

    Features and Benefits

    • With or without integrated electronics.
    • Remote electrical proportional control of pressure from a choice of five pressure ranges per valve size.
    • Excellent repeatability and stable performance results from cartridge design of mainstage elements.
    • Low installed cost and space requirement from high power/size ratios (more than double that of many conventional designs).

    KBCG-6/8, 1* Series

    General Description

    These two-stage pressure relief valves offer extensive application possibilities through their ability to control the pressure setting in proportion to an applied electrical input (up to a pressure limit which is manually adjustable and lockable).
    The integral amplifier allows the pressure to be controlled from a low power command signal: either a voltage or current command. The amplifier is mounted in a robust metal housing and electrical connections are via an industry standard 7-pin plug. Factory-set adjustments ensure high reproducibility valve-to-valve.

    Basic Characteristics

    • Max. pressure................350 bar (5000 psi)
    • Max. flow rate...........400 L/min (106 USgpm)
    • Mounting face to ISO 6264:
      • For KBCG-6...............AR-06-2-A
      • For KBCG-8...............AS-08-2-A

    Features and Benefits

    • Remote electrical proportional control of pressure from a choice of five pressure ranges per valve size.
    • Excellent repeatability and stable performance results from cartridge design of mainstage elements.
    • Low installed cost and space requirement from high power/size ratios (more than double that of many conventional designs).
    • On-board ramp adjustment.
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