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  • Welcome to Hebei Jingbo Petroleum Machinery Co. Ltd. Contact Us86-0318-7155981

    Quality first, users first.
    Conform to day, with location, and create, create brilliant.

    LOCATIONCoupling > Union & Flange

    Union & Flange


    High-Middle-Low Pressure Union


    High pressure union is forged and made of high strength alloy steel with imported world-class technology. Strict heat treatment ensures uniform metallographic structure and bearing capacity in the connector. The materials used fully comply with ASTM and AISI of USA, and the technical indicates of the product with API Spec 16C standard. The product is tight and reliable, and provides easy mounting and dismantling and good exchangeability. The connector of the product allows connection for pipeline thread, oil tube thread and butt weld or pressureless seal end.

    1469031956472749.jpg


    The connecting surface of precise linear seal ensures reliable pressure sealing. Application is recommended for low-pressure manifold and operating pressure at maximum 1,000 psi.



    Specification and reference dimensions of union



    Nominal pipe

    size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm



    lbs

    kgs

    2

    50.8

    36/8

    92.1

    215/18

    74.6

    SF

    SF

    5.25

    2.4

    21/2

    6.3.8

    41/4

    108.0

    36/8

    92.1

    SF

    SF

    8.0

    3.6

    3

    76.2

    415/18

    125.4

    41/8

    103.2

    SF

    SF

    14.0

    6.4

    4

    101.6

    515/18

    150.8

    425/32

    121.4

    SF

    SF

    33.0

    10.4

    6

    152.4

    66/8

    168.3

    67/18

    163.5

    SF

    SF

    44.5

    20.2

    8

    203.2

    71/4

    184.2

    711/18

    195.3

    SF

    SF

    61.0

    27.7


    For figure 100, 1000PSI NSCWP, test pressure at 1500PSI with black nut and yellow parts


    1469036759952797.jpg



    With compact construction, this union is widely used on low-pressure kill line and in application of air,water, oil or steam with medium pressure. Butt weld Sch.40 is desired for the applicable figure.


    Specif ication and reference dimensions of union

    Nominal pipe

    size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm



    lbs

    kgs

    2

    25.4

    211/18

    68.3

    115/18

    49.2

    SF/SF

    CDB/SF

    1.75

    0.8

    11/4

    31.7

    27/8

    73.0

    23/8

    60.3

    SF

    SF

    2.37

    1.1

    11/2

    38.1

    27/8

    73.0

    23/8

    60.3

    SF

    SF

    2.37

    1.1

    2

    50.8

    35/18

    84.1

    220/32

    73.8

    SF

    SF

    2.25

    2.4

    21/2

    63.8

    41/18

    103.2

    311/18

    93.7

    SF

    SF

    10.0

    4.5

    3

    76.2

    43/8

    111.1

    37/8

    98.4

    SF

    SF

    15.25

    6.9

    4

    101.6

    413/18

    122.2

    5

    127.0

    SF

    SF

    20.0

    9.1

    6

    152.4

    68/8

    168.3

    67/18

    163.5

    SF

    SF

    44.5

    20.2



    1/4


    11/18






    For figure 200, 2000PSI NSCWP, test pressure at 3000PSI with blue nut and gray parts

     


    1469038655101688.jpg


    O-shape rubber ring is mounted on the seal surface of the male connector for better sealing. Butt weld Sch.40 is desired for the applicable figure.

    It is recommended for connection of manifold and pipes and for applications with negative pressure and corrosion.


    Specification and reference dimensions of union

    Nominal pipe

    size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm



    lbs

    kgs

    1

    25.4

    211/18

    68.3

    115/18

    49.2

    SC/SF

    SF

    1.75

    0.8

    21/2

    38.1

    27/8

    73.0

    23/8

    60.3

    SF

    SF

    2.37

    1.1

    2

    50.8

    35/18

    84.1

    220/32

    73.8

    SF

    SF

    5.25

    2.4

    21/2

    63.5

    41/18

    103.2

    311/18

    93.7

    SF

    SF

    10.0

    4.5

    3

    76.2

    43/8

    111.1

    37/8

    98.4

    SF

    SF

    15.25

    6.9

    4

    101.6

    413/18

    122.2

    5

    127.0

    SF

    SF

    20.0

    9.1

    6

    152.4

    65/8

    168.3

    67/18

    163.5

    SF

    SF

    44.5

    20.2

    8

    203.2

    71/4

    184.2

    711/18

    195.3

    SF

    SF

    61.0


    For figure 206, 2000PSI NSCWP, test pressure at 3000PSI with blue nut and gray parts



    1469039391108634.jpg


    O-shape nitrile-butadiene rubber ring is mounted on the shutoff head of the union for effective sealing. The thread connector is exchangeable with those of Figures 200 and 206. Butt weld Sch.40 is desired for the applicable figure.


    Specification and reference dimensions of union

    Nominal pipe

    size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm



    lbs

    kgs

    3

    76.2

    33/4

    95.25

    27/8

    73.03

    SC

    SF

    9.8

    4.45

    4

    101.6

    45/18

    109.54

    310/32

    91.28

    SC

    SF

    16.25

    7.37

    6

    152.4

    513/18

    147.64

    431/32

    126.2

    SC

    SF

    38.0

    17.24



    The insulation design of the union connector removes the metal-to-metal contact in connection while the precisely fabricated wear-

    1470322237874248.jpg

    resistant compound elastomer provides effective sealing. The replaceable O-shape seal assembly prolongs the service life of the union.

    It is recommended for application or needs involving electrolytic corrosion.


    Specification and reference dimensions of union


    Nominal pipe
       size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm



    lbs

    kgs

    2

    50.8

    31/2

    88.9

    31/8

    79.39

    SF

    SF

    6.25

    2.8

    3

    76.2

    41/2

    114.3

    4

    101.6

    SF

    SF

    12.50

    5.7

    For f igure 211, 2000PSI NSCWP, test pressure at 3000PSI with gray nut and light blue parts




    1470322643831587.jpg

    Precisely sealed bond surface ensures reliable pressure tightness.

    It is recommended for application with oil, water, mud, gas or air.



    Specification and reference dimensions of union


    Nominal pipe
         size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    1

    25.4

    211/18

    68.3

    115/18

    49.2

    SF/SF

    SF

    1.75

    0.8

    2

    50.8

    35/18

    84.1

    220/32

    73.8

    SF

    SF

    5.25

    2.4

    For figure 300, 3000PSI NSCWP, test pressure at 4500PSI with black nut and green parts




    1470323172497392.jpg



    The design of thick wall and robust is used with ring-shape and tapered seal for easy centering and reliable sealing.



    Specification and reference dimensions of union

    Nominal pipe
    size

    Total length

    Pipck bore

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    2

    50.8

    53/18

    131.8

    1/4

    6.4

    33/18

    90.5

    SF

    SF

    11.0

    5.0

    3

    76.2

    61/4

    158.8

    3/8

    9.5

    43/18

    106.4

    SF

    SF

    19.25

    8.7

    4

    101.6

    81/8

    206.4

    3/8

    9.5

    5

    127.0

    SF

    SF

    32.0

    14.5

    For figure 400, 4000PSI NSCWP, test pressure at 6000PSI with black nut and red parts



    1470323545821504.jpg


    Figure 402, black nuts and connecting parts are used.

    Only the 2'' type is available-with nitrile-butadiene rubber seal ring.





    Main seal is provided by the bronze holder.1470325857848881.jpg


    It is recommended for use in the steam system and in the connection of manifold and pipe for production,drilling and well repair.


    Specification and reference dimensions of union

    Nominal pipe
         size

    Total length


    Pipck bore

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    1

    25.4

    317/32

    89.7

    1/4

    6.4

    25/18

    58.7

    SF

    SF

    3.5

    1.6

    2

    50.8

    61/4

    158.8

    3/18

    4.8

    33/4

    95.3

    SF

    SF

    15.0

    6.8


    For figure 600, 6000PSI NSCWP, test pressure at 9000PSI with black nut and silvery parts




    With resilient nitrile-butadiene rubber seal ring, this figure is used for sealing and protecting the steel-to-steel match.1470323952784891.jpg


    It is recommended for the connection of manifold and pipe and truck -mounted application and mud delivery. It may be used as pressureless seal union with butt weld Sch.80.


    Specif ication and reference dimensions of union


    Nominal pipe
    size

    Total length

    Pipck bore

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    1

    25.4

    317/32

    89.7

    1/4

    6.4

    26/18

    58.75

    SF

    SF

    3.5

    1.6

    2

    50.8

    51/4

    133.3

    1/4

    6.4

    30/18

    90.5

    SF

    SF

    13.25

    5.9

    3

    76.2

    63/8

    161.92

    3/8

    9.5

    45/8

    117.5

    SF

    SF

    21.0

    9.5

    4

    101.6

    81/18

    208.0

    3/8

    9.5

    51/4

    133.4

    SF

    SF

    33.0

    15.0

    For figure 602, 6000PSI NSCWP, test pressure at 9000PSI with black nut and orange parts




    Resilient nitrile-butadiene rubber seal ring is mounted.1470324037632176.jpg


    It is recommended for cement filling, fracturing, acidizing, testing and choke and kill line. It is designed for high-pressure systems including truck-mounted system. Also, it may be used as


    pressureless seal union. Butt weld Sch. 160 or XXH is desired.


    Specif ication and reference dimensions of union

    Nominal pipe
    size

    Total length

    Pipck bore

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    1

    25.4

    31/2

    88.9

    1/4

    6.4

    21/4

    57.2

    SF

    SF

    3.5

    1.6

    2

    50.8

    53/18

    131.8

    1/4

    6.4

    311/18

    93.7

    SF

    SF

    13.25

    5.9

    3

    76.2

    63/8

    161.92

    3/8

    9.5

    43/8

    117.5

    SF

    SF

    21.0

    9.5

    4

    101.6

    81/18

    204.8

    3/8

    9.5

    51/4

    133.4

    SF

    SF

    39.5

    17.9

    5

    127

    64/6

    172.7

     

     

    6

    152.4

    SF

    SF

    61.67

    28

    6

    152.4

    71/18

    179.4

     

     

    71/4

    184.2

    SF

    SF

    70.48

    32



    For figure 1002, 10000PSI NSCWP, test pressure at 15000PSI with red nut and blue parts

    Figure # 1002 union may also be used in applications with H2S and other acid gases.



    With an spheric seat, the union allows a deviation by 7-1/2°from the center or angle adjustment with a total deviation capacity of 15°.1470324832869261.jpg In addition to the steel-to-steel match, the nitrile-butadience rubber O-ring ensures air-tightness in connection at any deflected position.


    It is recommended for the connection of high-pressure lines when alignment is impossible.

    The product may be used in applications with air, water, oil, mud or gas.


    Specification and reference dimensions of union

    Nominal pipe
         size

    Connection

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

     

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    3

    76.2

    NPT

    91/8

    231.8

    47/8

    123.8

    SC

    AS

    45.0

    99.2

    3

    76.2

    Sch160

    87/8

    225.4

    47/8

    123.8

    SC

    AS

    47.5

    104.7

    3

    76.2

    XXHVY

    91/8

    231.8

    47/8

    123.8

    SC

    AS

    48.5

    106.9

    4

    101.6

    HPT

    1015/16

    277.8

    53/4

    146.0

    SF

    SF

    72.0

    158.7

    4

    101.6

    SCH160

    1011/16

    271.5

    53/4

    146.0

    SF

    AS

    76.0

    167.5

    4

    101.6

    XXHVY

    1015/16

    277.8

    53/4

    146.0

    SF

    AS

    78.0

    172.0

    5

    127

    SCH160

    103/.

    273.1

    53/.

    146.0

    SF

    AS

    74.0

    163.0

    5

    127

    XXHVY

    1015/16

    277.8

    3/4

    146.0

    SF

    AS

    76.5

    168.7

    For figure1003, 10000PSI NSCWP(7500 PSI NSCWP, 4in, 5in)with black nut and green parts



    With replaceable resilient nitrile-butadiene rubber seal ring and robust wall thickness design, this figure is used in high-pressure system.1470325389778196.jpg


    It is recommended for cement filling, fracturing, acidizing, testing and choke and kill line. Also, it may be used in pressureless seal connection. Butt weld Sch. XXH is desired.


    Specification and reference dimensions of union

    Nominal pipe
    size

    Total length

    Pipck bore

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    11/2

    38.1

    513/32

    137.0

    1/4

    6.4

    321/32

    93.0

    SF

    SF

    12.0

    5.4

    2

    50.8

    7

    177.8

    16/84

    6.0

    33/4

    95.3

    SF

    SF

    21.0

    9.5

    3

    76.2

    76/8

    193.7

    3/8

    9.5

    41/2

    114.3

    SF

    SF

    31.0

    14.1


    For figure 1502, 1500PSI NSCWP, test pressure at 22500PSI with blue nut and red parts


    1470325522603679.jpgFor this union, only the 2in type is available with a replaceable resilient nitrile-butadiene rubber seal ring combined in the stainless steel liner tube, providing complete compression protection in application with extra high pressure. The design of detachable nut/segment ring/retainer ring simplifies the removal of the nut from the piping.


    For figure 2002, 20000 PSI NSCWP, test pressure at 30000PSI with red nut and parts 


    Nominal pipe
    size

    Total length

    Nut radius

    Materials

    Weight

    Nut

    Part

    in

    mm

    in

    mm

    in

    mm

     

     

    lbs

    kgs

    2

    50.8

    73/8

    187.32

    311/18

    93.66

    SF

    AS

    22.5

    49.60




    1470325673790054.jpg

    With fluoroelastomer seal ring, 15000PSI NSCWP and the heat-treated parts 100% subjected to hardness test, this model complies with National Association of Corrosion Engineers Standard MR-01-75 and American Petroleum Institute RP-14E.


    This product is designated for application with acid gases. Green nuts and parts.


    Note: DIC = ductile iron casting SC = steel casting SF = steel forging AS = alloy steel

    OUR Certification

    about us/Quality first, users first.

    Jingbo Petroleum Machinery CO. LTD, Jingxian County Hebei Province, founded in 1986, is the first grade network department of CNPC, CNOOC and SINOPEC and the fire-proof hoses branch company of well control units manufacturing center of CNPC. It is a member of IADC. ISO9000 quality management system of China Classification Society was certified. API Spec 7K, API Spec 16A and API Spec 16C was certified.
    The company was named high-tech enterprise in 2009. It has advanced production equipment, complete inspection measures, all sets of processing equipment of manufacturing high strength hose, mechanical machining……

    CONTACT US

    HeBei Jingbo Petroleum Machinery Co., Ltd.
    -----------------------------------------------------------------------

    Address: Chengxi Industrial Zone, Jing County, Hebei Province, China.
    Tel: 86-0318-7155981
    Fax: +86-0318-4221960
    Email: sales@jingbohose.com
    Zip Code: 053000

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