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高温高压主安全阀

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高温高压主安全阀
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SKU:高温高压主安全阀Description:InstructionThisvalveisusedforpowerplantboilers,pressurecontainers,pressureandtemperaturereducingdevicesandotherfacilities

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  • 高温高压主安全阀

    高温高压主安全阀

    SKU:高温高压主安全阀
    Description:
    Instruction
    Thisvalveisusedforpowerplantboilers,pressurecontainers,pressureandtemperaturereducingdevicesandotherfacilities.
    Structure briefing
    1.Thesafetyvalve shallbe installedwertically andit wouldbe
    betterto installthe valvedirectly uponthe adaptorof thecontcuner orthe pipe.Theinsidediameter ofthe adapforshall beno lessthan thatof theinlet pipeof thesofty valve.
    2. To avoid the thermal stress that is caused by the thermalexpansionofthedischargepipe,theexitwayofthesafatyvalve shall be expansion with appropriate expansion joint. Theinsidediameter of the discharge pipe should larger than the diameter
    oftheexitwayofthevalve.Itslengthshallbeasshortaspossible andnobentisallowed.Theweightofboththedischargepipeａnd the expansion jointshall not be applied to the safety valve, andtheyshallbefasteneduponthecon-struction.Thedistancebetween bothcenterlinesofthedischargepipeandthebodyshall beasshort aspossible. Awaterdrainagepipeshallbeinstalledseparatelyfor eachsafetyvalve.
    3.Theexitwayofthemufflershallhaveenougharea,inorder toavoidproducingbackpressurethatwouldaffectthedischarge
    capabilityofthevalve.
    A48Y
    A48Y-C 型适用于温度≤425℃； A48Y-V型适用于温度≤550℃的电站锅炉、压力容器、减温减压装置上，作为超压保护装置。
    A48Y-C type applicable temperature are less than 425℃; A48Y-V type is suitable for the exceeding pressure protective equipment, their working temperature is 550℃ or less. Such as the boiler used in powerstation,pressure ontainer,pressure reducing and temperature reducing machine.
    主要外形及连接尺寸 Main external and connecting dimensions
    Type
    DN Nominal diameter
    Connecting dimensions (mm)
    L
    L1
    H
    D
    D1
    D2
    b
    Z- d
    DN1
    D'
    D1'
    D2'
    b'
    Z1-d1
    A48Y-P543.82V
    65
    190
    190
    853
    220
    170
    110
    50
    8-25
    150
    300
    250
    204
    30
    8-25
    A48Y-10
    80
    190
    190
    853
    230
    180
    121
    50
    8-25
    150
    300
    250
    204
    30
    8-25
    A48Y-10
    65
    190
    190
    853
    220
    170
    110
    50
    8-25
    150
    300
    250
    204
    30
    8-25
    A48Y-P543.82V
    80
    190
    190
    853
    230
    180
    121
    50
    8-25
    150
    300
    250
    204
    30
    8-25
    A48Y-20
    65
    210
    210
    933
    260
    203
    97
    55
    8-30
    150
    300
    250
    204
    30
    8-25
    A48Y-P545.29V
    65
    210
    210
    933
    260
    203
    97
    55
    8-30
    150
    300
    250
    204
    30
    8-25
    A48Y-20
    80
    210
    210
    933
    260
    203
    116
    60
    8-34
    150
    300
    250
    204
    30
    8-25
    A48Y-P545.29V
    80
    210
    210
    933
    290
    230
    116
    60
    8-34
    150
    300
    250
    204
    30
    8-25
    A48Y-20
    80
    210
    210
    933
    290
    230
    116
    60
    8-34
    150
    300
    250
    204
    30
    8-25
    A48Y-P5410V
    80
    210
    210
    933
    290
    230
    116
    60
    8-34
    150
    300
    250
    204
    30
    8-25
    A48Y-20
    65
    210
    210
    933
    290
    230
    116
    60
    8-34
    150
    300
    250
    204
    30
    8-25
    A48Y-P5410V
    65
    210
    210
    933
    290
    230
    116
    60
    8-34
    150
    300
    250
    204
    30
    8-25
    1. Tianzheng Brand safety valve is noted for elegant design,
    noleakage,settingpressureprecision, greatlydischarge andeasily adjusted.
    2. Nozzle seat: It is the Loware nozzle typeseat. Thesteamreachesthevelocityofsoundwhenpassingtheexitwayoftheseat. Thesealingsurfaceisweldedbycobalthardalloy,Largedisplac- ement coefficient,anti-friction, corrosion resistance and longdurabilityarerecognized
    3.Thermoelasticdisc: thedisc isof thermoelastic structure. Takingtheadvantageofitsminorout-of-shapefeaturewhenunder the medium pressure, the seal ability has been raised, and theproblemthatpre-dischargephenomenonofthemainsafetyhappens whenthemediumpressureapproachingthesetpressurehasbeen overcome.Thesealedsurfaceof thedischasadoptedtheadvanced technology of heat hardening to increase the hardness and theabilityofanti-frictionandcorrosion resistance.
    4. Adjustingnut: adjust the compression amount of spring bysuingpetnutsothatthevalvecanacquireappropriatesetpressure rapidlyandeasily.
    5.Backpressureadjustingsleeve: itisanauxiliaryapparatus thatservestoadjustthebackpressureofthedisctoacquireappr- opriatedif-ferentialpressureforseatreturning. Ifadjustupward, thebackpressureofvalvereduces.Ifadjustdownward,theback
    pressurerises.
    Installation instruction

关键词：安全阀

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