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    螺紋活接頭 | Threaded Union

    活接頭(union)又叫由壬或由任,是一種能方便安裝拆卸的常用管道連接件,主要有鎖緊螺母,雲頭,平接三部分組成。上海希迪管件主要生產鍛制高中壓類多種連接形式活接頭,其工藝由圓鋼或鋼錠模鍛成型後機加工的管道連接件,它的連接形式分承插焊接(承插焊活接頭)、螺紋連接(螺紋活接頭)、對焊連接(對焊活接頭)、內外牙連接等,主要製造標準ASME B16.11、MSS SP 83。由於活接頭由鎖緊螺母,雲頭,平接組成,由球面硬密封和四氟墊(或銅墊)軟密封,密封性好,有極高的防泄漏能力,同時在管道安裝、使用、檢修等也極其方便。
     
    Threaded Union Specification:
    Size/尺寸 1/8″~4″ (DN6~DN100)
    Class/壓力等級 2000 LBS, 3000 LBS, 6000 LBS
    Type/連接形式 Threads: American National Standard Taper Pipe Threads, NPT(ANSI/ASME B1.20.1-1983), Also available in other thread forms: Rc, Rp, BSP, BSPT,BSPP and in any combination.
    Surface Treatment/表面處理 Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Soldering,Darken, 熱浸鍍鋅,環氧樹脂和FBE塗層,電拋光,噴砂,發黑
    Materal/材質 Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel
    Manufacturing process/製造工藝 Cutting, Heat treatment, Forging, Machining, 鋸切、熱處理、模鍛、機加工
    Manufacturing Standards/製造標準 MSS SP-83

    Threaded Union Material Grades:
    Stainless Steel/不鏽鋼 ASTM A182 F304, 304L, 316, 316L,310S, 316Ti,317L
    Duplex & Super Duplex Steel/雙相鋼  ASTM A 182 – F51, F53, F55, S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950.
    Carbon Steel/碳鋼 ASTM/ ASME A 105, ASTM/ ASME A 350 LF 2
    Alloy Steel/合金鋼  ASTM / ASME A 182, ASTM / ASME F5, F9, F11,F22, F 91
    Copper Alloy Steel/銅合金 Copper Alloy Steel Forged Threaded 90 Deg Elbow : ASTM / ASME SB 111 UNS NO. C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 C 71500, ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)
    Nickel Alloy/鎳合金  ASTM / ASME SB 336, ASTM / ASME SB 564 / 160 / 163 / 472, UNS 2200 (NICKEL 200) , UNS 2201 (NICKEL 201 ) , UNS 4400 (MONEL 400 ) , UNS 8020 ( ALLOY 20 / 20 CB 3 ) , UNS 8825 INCONEL (825) , UNS 6600 (INCONEL 600 ) , UNS 6601 (INCONEL 601) , UNS 6625 (INCONEL 625) , UNS 10276 (HASTELLOY C 276)

    Threaded Union Dimesions:
    螺紋活接頭(Female Union) 內外牙活接頭(Female & Male Union)
    一端外牙,一端插焊活接頭(Male & SW Union) 雙外牙活接頭(Male Union)
       
     
    Threaded Pressure Class  Pipe Schedule
    Class 2000 S80/XH
    Class 3000 S160
    Class 6000 XXH
     
    Nom.
    Pipe
    Size
    Pipe End Wall Water
    Way Bore
    Male
    Flange
    Nut Threads
    Per
    25.4mm
    Bearing Length
    Assem.
    Nom.
    Clear
    Assem.
    Nut
    Min.A Min.C D Min.F Min.G Max.H Min.J L N
    1/8" 14.7 2.41 8.43
    6.43
    3.18 3.18 16 1.24 41.4 50.8
    1/4" 19.0 3.02 11.13
    9.45
    3.18 3.18 16 1.24 41.4 50.8
    3/8" 22.9 3.20 14.27
    13.51
    3.43 3.43 14 1.37 46.0 55.9
    1/2" 27.7 3.73 17.86
    17.07
    3.68 3.68 14 1.50 49.0 58.4
    3/4" 33.5 3.91 23.01
    21.39
    4.06 4.06 11 1.68 56.9 66.0
    1" 41.4 4.55 28.98
    27.74
    4.57 4.45 11 1.85 62.0 78.7
    1-1/4" 50.5 4.85 37.69
    35.36
    5.33 5.21 11 2.13 71.1 94.0
    1-1/2" 57.2 5.08 43.54
    41.20
    5.84 5.59 10 2.31 76.5 111.8
    2" 70.1 5.54 55.58
    52.12
    6.60 6.35 10 2.69 86.1 132.1
    2-1/2" 85.3 7.01 66.27
    64.31
    7.49 7.11 8 3.07 102.4 149.9
    3" 102.4 7.62 88.25
    77.27
    8.26 8.00 8 3.53 109.0 175.3
    (1)Dimensions in Millimeters.
    (2)Upper and lower values for each size are the respective maximum and minimum dimensions.

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