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  • Threaded Coupling
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  • Threaded Coupling
     

    Threaded Coupling is a commonly used fitting in industrial pipe connection.
    Purpose: Threaded Coupling is a short tube used to connect two tubes. Threaded Coupling is widely used in civil construction, industry, agriculture and other fields because of its convenient use.
     
     
    Manufacturing process
    According to its manufacturing process, it can be divided into forging and casting.
    Forging
    Forging refers to the use of steel ingots or round bars for heating and forging to form, and then processing threads on a lathe.
    Casting
    Casting refers to the melting of steel ingots and pouring them into a fixed Threaded Coupling model, and then cooling them down.
     
     
    Standard
    The main manufacturing standards of Threaded Coupling generally include GB/T14383, ASME B16.11, and BS 3799.



    Threaded Coupling Specification:


    Size 1/8″~4″ (DN6~DN100)
    Class 3000 LBS, 6000 LBS
    Type 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 Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Soldering,Darken,
    Materal Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel
    Manufacturing process Cutting, Heat treatment, Forging, Machining,
    Manufacturing Standards ASME 16.11, GB/T4383-2018,BS-3799




    Threaded Coupling Material Grades:


    Stainless Steel ASTM A182 F304, 304L, 316, 316L,310S, 316Ti,317L
    Duplex & Super Duplex Steel ASTM A 182 – F51, F53, F55, S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950.
    Carbon Steel ASTM/ ASME A 105, ASTM/ ASME A 350 LF 2
    Alloy Steel ASTM / ASME A 182, ASTM / ASME F5, F9, F11,F22, F 91
    Copper Alloy Steel 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 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 Coupling Dimesions:




    Threaded Coupling Threaded Half Coupling

     


     




    Threaded Pressure Class  Pipe Schedule
    Class 3000 S160
    Class 6000 XXH

     
    DN Nom.
    Pipe
    Size
    Center to End
    Coupling
    W
    Center to End
    Cap
    P
    Outside
    Diameter
    D
    End Wall
    Thickness
    G Min.
    Length Of
    Thread
    Min.(1)
    3000&6000 3000 6000 3000 6000 3000 6000 B L2
    6 1/8" 32 19 --- 16 --- 4.8 --- 6.4 6.7
    8 1/4" 35 25 27 19 25 4.8 6.4 8.1 10.2
    10 3/8" 38 25 27 22 32 4.8 6.4 9.1 10.4
    15 1/2" 48 32 33 28 38 6.4 7.9 10.9 13.6
    20 3/4" 51 37 38 35 44 6.4 7.9 12.7 13.9
    25 1" 60 41 43 44 57 9.7 11.2 14.7 17.3
    32 1-1/4" 67 44 46 57 64 9.7 11.2 17.0 18.0
    40 1-1/2" 79 44 48 64 76 11.2 12.7 17.8 18.4
    50 2" 86 48 51 76 92 12.7 15.7 19.0 19.2
    65 2-1/2" 92 60 64 92 108 15.7 19.0 23.6 28.9
    80 3" 108 65 68 108 127 19.0 22.4 25.9 30.5
    100 4" 121 68 75 140 159 22.4 28.4 27.7 33.0

    (1)Dimensions in Millimeters.
    (2)Dimension B is minimum length of perfect thread. The length of useful thread(B plus threads with fully formed roots and flat crests)shall not be less than L2(effective length of external thread)required by American National Standard for Pipe Threads (ANSI/ASME B1.20.1)


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