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弹簧微启式外螺纹安全阀(A21H)

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  • 作者：大唐阀门        发布时间：13/03/21        来源：上海大唐阀门

  • 弹簧微启式外螺纹安全阀(A21H)

    弹簧微启式外螺纹安全阀(A21H)

    Description:
    系列 Series
    A21F-16CA21H-16CA21H-40A21H-64A21Y-100A21H-160A21W-16PA21W-40PA21F-40PA21W-64PA21W-100PA21W-160PKA21Y-16CKA21Y-16PA21Y-16RA21Y-40RA21Y-64RA21Y-100RA21Y-160R
    A21F、A21H-C型适用于工作温度≤200℃的空气、氨、石油气……等介质的设备或管路上。A21W-P、R型适用于温度≤200℃有腐蚀性的气体或液体的设备或管路上，作为超压保护装置。KA21Y型适用于温度≤100℃的液化石油气等。
    A21F, A21H-C type are used for the equipment and pipeline of the air,ammonia, petroleum gas, etc. medium what the wor-king temperature are less than 200 . A21W-P, R type are used for the equipment and pipeline of the quality with corr ode gas and liquid medium shat the wor-king temperature are less than 200 . Take forextrapressure protection devices. KA21Y type are used for liquefied petroleum gas what the working temperature are lessthan 100
    主要零部件材料 Explanation of materials for main parts
    NO.
    Name of part
    A21H-C/A21F KA21Y-C Materials
    A21W-P/A21F-P KA21Y-P Materials
    A21Y-RMaterials
    1
    Union
    20
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    2
    Union nut
    35
    2Cr13
    1Cr18Ni9Ti
    3
    Nozzle
    35
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    4
    Body
    2Cr13
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    5
    Disc
    2Cr13/2Cr13+PTFE
    1Cr18Ni9Ti/1Cr18nI9Ti+PTFE
    1Cr18Ni12Mo2Ti
    6
    Spring washer
    2Cr13
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    7
    Spring
    50CrVA
    50CrVACoated Teflon
    50CrVACoated Teflon
    8
    Locking nut
    Q235-A
    2Cr13
    1Cr18Ni9Ti
    9
    Spring guide
    2Cr13
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    10
    Adjusting nut
    Q235-A
    2Cr13
    1Cr18Ni12Mo2Ti
    　
    Sealing surface of material
    "Y" CoDepositing stellite, "H" D507 Depositing D507, "W"body
     
    外形尺寸和连接尺寸 Dimensions (mm)
    Type
    (DN)
    Nominal diameter
    do
    d
    Do
    M
    d1
    D1
    L
    L1
    H
    15
    12
    15
    20
    M271.5
    G1/2"
    30
    35
    76
    66
    20
    16
    20
    25
    M331.5
    G3/4"
    34
    40
    87
    68
    25
    18
    25
    31
    M391.5
    G1"
    40
    50
    100
    105
    15
    10
    15
    25
    M391.5
    G1"
    44
    50
    100
    66
    20
    10
    20
    31
    M391.5
    G1"
    44
    50
    100
    68
    25
    12
    25
    31
    M391.5
    G1"
    44
    50
    100
    105
    15
    8
    20
    /
    M242
    G1"
    44
    50
    100
    261
    20
    8
    25
    /
    M332
    G1"
    44
    50
    100
    261
    25
    8
    28
    /
    M362
    G1"
    44
    50
    100
    285

     

    NO.
    零件名称
    A21H-C/A21F材料
    A21W-P/A21F-P材料
    A21Y-R材料
    1
    管接头
    20
    1Cr18Ni12Mo2Ti
    2
    管接头螺母
    35
    2Cr13
    1Cr18Ni9Ti
    3
    阀座
    35
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    4
    阀体
    2Cr13
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    5
    阀瓣
    2Cr13/2Cr13+PTFE
    1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE
    1Cr18Ni12Mo2Ti
    6
    弹簧座
    2Cr13
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    7
    弹簧
    50CrVA
    50CrVA包覆氟塑料
    50CrVA包覆氟塑料
    8
    锁紧螺母
    Q235-A
    ZG230-450
    1Cr18Ni9Ti
    9
    弹簧导向垫
    2Cr13
    1Cr18Ni9Ti
    1Cr18Ni12Mo2Ti
    10
    调节螺母
    Q235-A
    2Cr13
    1Cr18Ni12Mo2Ti
     
    密封面材料
    "Y"型堆焊Co基硬质合金,"H"型堆焊D507,"W"型为阀门本体

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