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Socket Weld Equal/reducing Coupling

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Socket Weld Equal/reducing Coupling

Country/Region china

Company hjfitting limited

Categories Spiral Welded Steel Pipe

Update 2017-08-01 10:26:21

ICP License Issued by the Chinese Ministry

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Socket Weld Equal/reducing Coupling

A coupling connects two pipes. If their sizes differ, the fitting is known as a reducing coupling, reducer, or an adapter. Alternatively it is a short length of pipe with two female National pipe threads (NPT) (in North American terms, a coupler is a double female while a nipple is double male)...
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  • Description

  • A coupling connects two pipes. If their sizes differ, the fitting is known as a reducing coupling, reducer, or an adapter.

    Alternatively it is a short length of pipe with two female National pipe threads (NPT) (in North American terms, a coupler is a double female while a nipple is double male) or two male or female British standard pipe threads.

    If the two ends of a coupling are different (e.g. one BSP threaded and one NPT threaded), then it is usually referred to as an adapter. Another variation is one plain socket and one threaded socket. Yet another variation would be 3/4" NPT to 1/2" NPT.

    Nominal Pipe Size(NPS)

    End-to-End
    Couplings,W

    Outside
    Diameter, D

    Minimum Length
    of thread
    [Note(1)]

    3000

    6000

    3000

    6000

    B

    L2

    18

    32

    16

    22

    6.4

    6.7

    14

    35

    19

    25

    8.1

    10.2

    38

    38

    22

    32

    9.1

    10.4

    12

    48

    28

    38

    10.9

    13.6

    34

    51

    35

    44

    12.7

    13.9

    1

    60

    44

    57

    14.7

    17.3

    114

    67

    57

    64

    17

    18

    112

    79

    64

    76

    17.8

    18.4

    2

    86

    76

    92

    19

    19.2

    212

    92

    92

    108

    23.6

    28.9

    3

    108

    108

    127

    25.9

    30.5

    4

    121

    140

    159

    27.7

    33

    NOTE:

    (1) Dimension B is minimum length of perfect thread. The length of useful thread (B plus thread 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 (ASME B1.20.1;see para. 6.3)

    Dimensions NPS 1/2 to 4 - Class 3000

    NPS

    Socket

    Depth

    Bore

    Socket

    Bore

    Socket

    DIA

    wall THK

    B

    J

    D

    C

    1/2

    21.95

    10

    16.6

    4.65

    21.7

    15

    4.1

    3/4

    27.3

    13

    21.7

    4.9

    27.05

    20.2

    4.25

    1

    34.05


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China Socket Weld Equal/reducing Coupling

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