Pneumatic 3-Way Converging / Diverting Control Valve

Pneumatic 3-Way Converging / Diverting Control Valve

The ZPL310Y/ZPL320Y series pneumatic 3-way converging/diverting control valve features a dual-valve-plug structure with upper and lower guiding, paired with various spring actuators. The valve body has a 4-way structure, available in two configurations: one-inlet-two-outlets (diverting type) for fluid splitting or two-inlets-one-outlet (converging type) for fluid mixing. These configurations enable functions such as temperature adjustment through fluid mixing or uneven liquid diversion, meeting diverse operational requirements.

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    Product Overview

    The valve body offers advantages including compact structure, light weight, sensitive action, minimal pressure drop loss, high allowable pressure difference, large capacity, precise flow characteristics, and easy maintenance. It is suitable for various working conditions, particularly temperature control systems in petroleum industry heat exchangers and automation control across industries. Available in multiple forms such as standard types and high-temperature types, the product offers pressure ratings of PN1.6,4.0, and 6.4; sizes ranging from DN25 to 200; leakage classes II and IV; and flow characteristics of linear and equal percentage. A wide range of specifications is available for selection.

    Specifications

    Body Type 3-Way Converging/Diverting Type
    Size DN25~DN200
    D & M Std. GB/T4213
    F2F Std. GB/T12221
    PT & I Std. GB/T4213,API598
    Conn. Std. Flange Sealing Face RF, FM/M, T/G, FF
    HG/T20592 PN10, PN16, PN25
    ASME B16.5 150LB
    Sealing Type Seat Type Metal Seated
    Stem Sealing Type Packing Sealing, Bellows Sealing
    Materials Body/Bonnet Material WCB, LCB, SS304, SS316L
    Plug Material WCB, F304, F316L
    Stem Material 17-4PH
    Packing Material PTFE
    Technical Parameters Temperature Range -30℃~160℃
    Flow Characteristic Equal percentage(EQ%)/ Linear(LIN)/ Quick opening(QO)
    Leakage Level IEC 60534-4, ANSI FCI 70-2, ASME B16.104
    Rangeability 50:1
    Basic Error w/o pos.:≤±8%, w/pos.≤±1.5%
    Hysteresis Error w/ pos.≤1.5%
    Dead Band w/o pos.:≤6%, w/pos.: ≤0.5%
    Accessories Actuator Pneumatic Actuator ZP6100 Series
    ZP6200 Series
    Electric Actuator ZP8000 Series
    Main Accessories Positioner, Air Filter Regulator, Handwheel
    Others Limit Switch, Solenoid Valve, position transmitter, Volume booster, Lock-up valve

     

    Features Description
    Multi-Application This 3-way control valve enables multi-scenario flow switching between diverting (1-inlet/2-outlet) and combining (2-inlet/1-outlet) configurations.
    Dual-Disc Control Structure The independent disc-seat paired configuration enables one disc to open while the other synchronously closes, achieving precise flow splitting or merging control
    Dual-Function Stabilization The sleeve with balance holes reduces fluid-induced unbalanced forces, improving stability.
    The disc sidewall, seat bore, and upper bushing form a cooperative guidance system to enhance vibration resistance
    Application & Cost Saving  This valve can replace the combination of an air-to-open valve and an air-to-close valve, reducing costs by over 30%, saving installation space, and being suitable for bypass control, fluid ratio adjustment, and similar applications
    Leakage Class State  Standard leakage class I~IV, upgradable to Class IV (Enhanced Sealing Requirement) through advanced
     cage trim optimization
    Selectable Flow-Char.  Flow characteristic selectable between linear and parabolic, adapting to varying process requirements
     and control precision needs

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    Application & Case

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