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SHANGHAI HUIXUAN VALVE

Mobile:+86-17717520739
Wechat:17717520739
Email:info@shxvalve.com

Address: NO.720, Suide Road, Jiading District,Shanghai, China.
 

ZAZN Double seat electric control valve

Model:

  • Port size:DN20~300, NPS 3/4〞~ 12〞
  • Pressure:PN16 ~ 100,150LB ~ 600LB
  • Medium:Water,oil,steam,gas
  • Temperature :-40~570℃
  • Body material:WCB LCB CF8 CF3 CF8M CF3M WC6 WC9
  • Description:
  • ZAZN Double seat electric control valve Feature

    ZAZN Double seat electric control valve is composed of a DKZ type series of straight travel electric actuator and through double seat control valve is composed of two parts, with the single phase AC 220V or DC 380V power supply for power, accept 0~10mA or 4~20mA DC signal, automatic control valve opening, continuous regulation of pipeline fluid pressure, flow, level and other parameters. ZAZN Double seat electric control valve is sensitive, convenient use, energy and signal transmission characteristics of rapid. ZAZN Double seat electric control valve is widely used in electric power, metallurgy, chemical industry, textile and other industrial automatic control system. 
  • ZAZN Double seat electric control valve specification

    Electric control valve
    Body type:
    straight through casting globe type
    Spool type: non-balanced double seat plug type
    Nominal size: DN20~300,、 NPS 3/4〞~ 12〞
    Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
    Connection: flange: FF、RF、MF、RTJ
    Welding: SW、BW
    Flange dimension: According to to IEC 60534
    ZAZN Double seat electric control valve Bonnet type: Ⅰ:standard type(-20℃~230℃)
    Ⅱ:Radiator type: (-45℃~ high than 230℃ occasion)
    Ⅲ:Low temperature extended type(-196℃~ -45℃)
    Ⅳ:Bellow seal type
    Ⅴ:Warm insulation Jacket type
    Packing: V type PFTE packing, flex. graphite packing, etc.
    Gasket: Metal graphite packing
    Actuator: Electric: DZK series actuator.
  • ZAZN Double seat electric control valve Material

    Component name Control Valve Material
    Body/Bonnet WCB/WCC/WC6/CF8/CF8M/CF3M
    Valve spool/Seat 304/316/316L(overlaying stellite alloy)
    Packing Normal:-196~150℃ is PTFE,RTFE,>230℃ is flexible graphite
    Bellows 304/316/316L
    Gasket Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
    Control valve stem 2Cr13/17-4PH/304/316/316L
  • ZAZN Double seat electric control valve Performance

    Electric control valve Flow characteristic Linear, Equal percentage, quick open
    Allowable range 50: 1 (CV<6.3 30: 1)
    Rated Cv value Percentage CV1.6~630 ,linear CV1.8~690
    Electric control valve Allowable leakage Metal seal:  IV grade(0.01% rated capacity)
    Soft seal:  VI grade(foam grade)
    Leakage standard:  GB/T 4213
    ZAZN Double seat electric control valve Performance
    Intrinsic error (%) ±1.0
    Return difference(%) ≤1.0
    Dead zone(%) ≤1.0
    Difference from beginning to end point(%) ±2.5
    Rated travel difference(%) ≤2.5
  • ZAZN Double seat electric control valve specical requirement

    Special test Material penetration flaw detection (PT), radiator test (RT), flow characteristic test,
    low temperature test.
    Special treatment Trim nitrogen treatment, seat hard alloy treatment.
    Special rinse Degreasing and dehydration treatment
    Special condition Special piping or connection, vacuum condition, S.S fastener, special coating.
    Special dimension Customized face to face length or dimension
    Test and inspection Third party test report
  • ZAZN Double seat electric control valve parameter

Electric control valve Type\ Method Electric actuator
DKZ series
Intelligent integrated type
Usage Regulating
Air supply pressure or Power supply voltage Power: AC 200V±10%  50Hz
Or Power:  AC 380V±10% 50Hz
Connector Normal type:  cable inlet 2-PF(G1/2〞)
Explosive proof:  Protection jacket PF(G3/4〞)
Direct action Input signal increase, stem descend, valve close.
Reaction Input signal increase, stem ascend, valve open.
Input signal Input/output4~20mA.DC
Lag ≤0.8%FS
Linear type +1%FS
Environmental temperature Standard type: -10℃~+60℃
With space heater : -35℃~+60℃
Explosive proof: -10℃~+40℃
Electric control valve Accessories Space heater (normal type)
Non-standard accessories, need special customized notes.
  • ZAZN Double seat electric control valve technical parameter

    Nominal diameter DN

    25

    32

    40

    50

    65

    80

    100

    125

    150

    200

    250

    300

    Rated flow coefficient Kv

    10

    16

    25

    40

    63

    100

    160

    250

    400

    630

    1000

    1600

    Nominal pressure PN MPa

    1.6            4              6.4

     

    match DKZ actuator

    DKZ-4200

    DKZ-4300

    DKZ-5400

    DKZ-5500

    DKZ-5600

     

    match Cepai actuator

    A+Z64

    A+Z160

     

    Rated travel mm

    16

    25

    40

    60

    100

     

    Flow characteristic

     Equal percentage           linear

     

    Action mode

    Input signal increase, valve close or opposite

     

    Temperature range

                                 Normal temperature: -20 — +200 degree            thermal fin type:-60~450degree

    Note: Large size single-seat control valve can be customized according to user requirement

    .

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