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Multistage Minimum Flow Control Valve

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    Multistage Minimum Flow Control Valve

    Product Description

    INTRODUCTION

    ZHD multistage minimum flow control valve cage control valve used multilevel cage symmetric sleeve control valve. It complete control medium velocitywithin valve, and greatly reduced noise made by high pressure gas or steam within valve, stabile multistage pressure reducing effective prevent liquid cavitation, so it’s the stable control valve used in high-pressure medium performance,customers can also select multi-spring diaphragm mechanism or pneumatic actuators, etc.

    TEHNICAL PARAMETERS AND TECHNICAL PERFORMANCE

    • Body type: Direct casting ball-type valve
    • Nominal diameter:DN20, 25, 32, 40, 50, 65, 80, 100, 200
    • Nominal pressure:PN 1.6, 2.5, 4.0, 6.4, 10.0, 16,25Mpa CLASS 150, 300, 600, 900,1500Lb
    • Connection flange: FF, RF, RTJ, etc, welding: SW, BW
    • Flange distance: according to IEC534
    • Bonnet type: stdanrd type, lengthened (heat dissipation, low temperature, bellows sealing).
    • Packing: V type PTFE, flexible graphite, etc.
    • Sealing gasket: Metal with graphite gaskets
    • Actuator: Pneumatic, multi-spring actuator.
    • Electric: 3810L series, PSL series.
    • Valve disc type: multistage cage sleeve type.
    • Flow characteristics: equal percentage, linear.
    • Disc material: standard material composition and applicable temperature, pressure range, please refer to appendix.

    CUSTOMERIZED SELECTION

    BodyTypeDirectBonnetModelStandard,lengthened
    MaterialWCB, WC9, 304, 316,etc.MterialWCB, WC9, 304, 316,etc.
    DiscCharacteristicLinear, equal percentage, quick openingPackingV type PTFEFlexible graphite,bellow sealing
    Material304, 304+STL/PTFE, 316, 316+STL/PTFE
    ActuatorPneumatic:See appendix6
    Electric: See appendix6
    PositionerElectric valve positioner, intelligent digital positioner
    AccessoriesSolenoid valve, valve position feedback device, hand operate mechanism,lock-up valve,air filter pressure relief device etc.

    MODEL SELECTION

    ZR:3810L seriesH:Linear actuatorD: multistage cage sleeve type-16:PN1.6MpaC:Carbon steelDN 20Size:20mm
    P: PSL seriesP: Chromium-Nickel- titanium Steel
    J:Pneumatic diaphragm-150LB:CL 150LBI: Chromium-molybdenum steel-B:Air to closeIN 1〞Size: 1〞

    H:Linear cylinder

    V: Chrominm-molybdenum-vanadium steel-K:Ai r to open

    BODY IS CAST STEEL

    1Seat25LF2F22
    2Nut253525Cr2Mo1VA
    3Stud3540MnB25Cr2Mo1VA
    4Gasket316+graphite/PTFE
    5Body25LF2F22
    6Seat304304304
    7Stem304304304
    8Stud3540MnB25Cr2Mo1VA
    9Nut253525Cr2Mo1VA
    10Gasket316+graphite/PTFE
    11Packing gasket304304304
    12StuffingPTFE/Flexible graphite
    13Bonnet25LF2F22
    14Pressing sleeve304304304
    15Gland25LF2F22
    16Nut3540MnB25Cr2Mo1VA
    17Stud253525Cr2Mo1VA

    APPENDIX3: BODY MATERIAL IS STAINLESS STEEL

    1SestCF8CF8MCF3M
    2Nut304316316L
    3Stud304316316L
    4Gasket316+graphite/PTFE
    5BodyCF8CF8MCF3M
    6Seat304316316L
    7Setm304316316L
    8Stud304316316L
    9Nut304316316L
    10Gasket316+Graphite/PTFE
    11Stuffing gasket304316316L
    12StuffingPTFE/Flexible graphite
    13BonnetCF8CF8MCF3M
    14Pressing sleeve304316316L
    15GlandCF8CF8MCF3M
    16Stud304316316L
    17Nut304316316L

    ※ NOTE

    • The above is standard configuration structure, valve seat is metal to metal, and we can still provide strengthed trim with stellite alloy coating. For specific applicable temperature, we have more reasonable bolts, nuts for choose.
    • PTFE v-shaped ring stem packing is standard configuration and can also choose flexible graphite.
    • Standard body material is carbon steel and stainless steel, and we can still provide various high corrosive-resistance alloy materials.

    CONTROL VALVE STRUCTURAL SIZE

    Valve sizeLPneumaticElectric
    inchmmPN100-320PN 420H1 mmH2 mmA mmH1 mmH2 mmA mm
    1”252793181406903601401005270
    11/2”403303591537703601531025270
    2”503754001537703601531025270
    3”804604981709004701701095310
    4”1005305751909324701901120310
    6”1507688192239505602231170350
    8”20083210292659905602651220350
    Since product and technical innovation or some special requirements, connection size of various valves may change, please contact with Datian valve Technical Department to get the latest product information. We can also produce according to your required size.

    Quality Multistage Minimum Flow Control Valve for sale
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