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Pneumatic Single Seat Regulating Valve

Keywords: metering pump accessories

Classification:

Pneumatic control valve

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  • DESCRIPTION

    Main parts materials

    Part Name

    Material

    temperature range

    Valve cover on valve body

    HT200

    -20~200℃

    ZG230-450

    -40~450℃

    ZG1Cr18Ni9Ti

    -250~550℃

    ZG0Cr18Ni12Mo2Ti

    -250~550℃

    Valve core, valve seat

    1Cr18Ni9

    -250~550℃

    0Cr18Ni12Mo2Ti

    -250~550℃

    filler

    PTFE

    -40~200℃

    Diaphragm

    Nitrile rubber clip reinforced polyester fabric

     

    compressed spring

    60Si2Mn

     

    membrane cover

    A3

     

     

    ■Main technical parameters 

    Nominal diameter mm

    20

    25

    40

    50

    65

    80

    100

    150

    200

    250

    300

    350

    400

    Valve seat diameter mm

    10

    12

    15

    20

    25

    32

    40

    50

    65

    80

    100

    125

    150

    200

    250

    300


         You can negotiate with our company for production

    Rated flow
         coefficient Kv

    straight line

    1.8

    2.8

    4.4

    6.9

    11

    17.6

    27.5

    44

    69

    110

    176

    275

    440

    690

    1000

    1600

    equal percentage

    1.6

    2.5

    4

    6.3

    10

    16

    25

    40

    63

    100

    160

    250

    400

    630

    900

    1440

    Nominal pressureMPa

    0.6   1.6   4.0   6.4

    Stroke mm

    10

    16

    25

    40

    60

    100

     

     

    Traffic characteristics

    Straight line, equal percentage, quick opening type

    Medium temperature℃

    -40~230℃(normal temperature type), heat sink type 230~450℃(medium temperature type), special order -100~600℃

    Flange standard

    Comply with JB78-59, JB79-59 standards, and can be ordered and produced according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards

    Valve body material

    PN
         (MPa)

    0.6,1.6

    WCB(ZG230-450) CF3CF8 CF8M

    4.0,6.4

    WCB(ZG230-450)、ZG1Cr18Ni9Ti、ZG0Cr18Ni12Mo2Ti CF8 CF8M

    Valve body type

    Straight through single seat cast ball valve

    Valve core material

    1Cr18Ni9、0Cr18Ni12Mo2Ti CF8 CF8M

    Upper valve cover form

    Ordinary type (normal temperature type), heat plate type (medium temperature type), low temperature type

    Adjustable ratio R

    50:1

    Air source connector

    M16×1.5

    Note: ANSI and JIS flange products can be provided to users, and the structural length can also be determined according to user needs.
       
     ■Main technical parameters of actuator

    model

    ZHA-22

    ZHB-22

    ZHA-23
    ZHB-23

    ZHB-34
    ZHB-34

    ZHA-45
    ZHB-45

    ZHA-56
    ZHB-56

    Effective areacm2

    350

    350

    560

    900

    1600

    Stroke mm

    16

    25

    40

    60

    100

    Spring range KPa

    20~100 (standard): 40~200;
         80~240; 20~60; 60~100


     ■Performance indicators

    project

    Index value

    project

    Index value

    Basic error%

    Without locator

    ±5.0


    Always
    point deviation
    %

     

    Qiguan

    Without locator

    starting point

    ±5.0

    With locator

    ±1.0

    end

    ±2.5

    Time difference%

    Without locator

    ≤3.0

    With locator

    starting point

    ±1.0

    end

    ±1.0

    With locator

    ≤1.0

    Be angry

    Without locator

    starting point

    ±2.5

    end

    ±5.0

    dead zone%

    Without locator

    ≤3.0

    With locator

    starting point

    ±1.0

    end

    ±1.0

    With locator

    ≤0.4

    Allowable leakage L/h

    1×10-4×valve rated capacity

    Rated stroke deviation %

    ±2.5