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    5 Products
    About Pipe and Fittings
    industrial info icon

    Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

    Fitting Type

    Threading

    Threading

    Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges

    For excellent strength in extreme-pressure applications, choose these heavy duty Pressure Class 1500 flanges. Bolt two same-size flanges together with a gasket (sold separately) to create an access point in a pipe line. They are for noncorrosive environments.
    Forged Flanges
    Image of Product. Butt Weld: Front. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Butt Weld, Raised Surface.
    Image of Product. Butt Weld: Raised Surface on Back. Back orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Butt Weld, Raised Surface.
    Image of Product. Slip-On Weld Female: Front. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Slip-On Weld Female, Raised Surface.

    Butt Weld: Front

    Butt Weld:

    Raised Surface

    on Back

    Slip-On Weld

    Female: Front

    Image of Product. Slip-On Weld Female: Raised Surface on Back. Back orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Slip-On Weld Female, Raised Surface.
    Image of Product. Socket-Connect Female: Front. Front orientation. Contains Annotated. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Socket-Connect Female, Raised Surface.
    Image of Product. Socket-Connect Female: Raised Surface on Back. Back orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Socket-Connect Female, Raised Surface.

    Slip-On Weld

    Female: Raised

    Surface on Back

    Socket-Connect Female:

    Front

    Socket-Connect

    Female: Raised

    Surface on Back

    Forged flanges have better strength than cast flanges.
    Butt-Weld Fitting Connection—Butt-weld flanges are also known as weld-neck flanges; the flange neck has a beveled end that, when flush to pipe, creates a trough for a strong weld.
    Slip-on-Weld Fitting Connection—Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Pipe
    Size
    Dash
    Size
    Bolt
    Hole
    (A)
    (B)
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Butt Weld
    1
    		1
    		1616Raised5 7/8"7/8"1"44"1500
    		Steel
    		3,700 psi @ 72° F3,200 psi @ 300° F1139T410000000
     
    Slip-On Weld Female
    1
    		1
    		1616Raised5 7/8"7/8"1"44"1500
    		Steel
    		3,700 psi @ 72° F3,200 psi @ 300° F1139T47000000
     
    Socket-Connect Female
    1
    		1
    		1616Raised5 7/8"7/8"1"44"1500
    		Steel
    		3,700 psi @ 72° F3,200 psi @ 300° F1139T61000000
     
    Forged Blind Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Blind Flanges, Flanged, Raised.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Blind Flanges, Flanged, Raised.

    Front

    Raised Surface

    on Back

    Forged flanges have better strength than cast flanges.
    Bolt
    Hole
    Pipe
    Size
    Dash
    Size
    Flanged Connection
    Surface
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Flanged
    1
    		16Raised5 7/8"7/8"1"44"1500
    		Steel
    		3,700 psi @ 72° F3,200 psi @ 300° F1139T540000000
     

    Extreme-Pressure Iron and Steel Threaded Pipe Flanges

    Also known as Pressure Class 1500 flanges, these have the strength to handle high pressures. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges are for use in noncorrosive environments.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Forged Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Flanges, Forged Flanges, Female, Flanged Fitting Connection, Threaded Fitting Connection, Raised Surface.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Flanges, Forged Flanges, Female, Flanged Fitting Connection, Threaded Fitting Connection, Raised Surface.

    Front

    Raised Surface

    on Back

    Forged flanges have better strength than cast flanges.
    Pipe
    Size
    Dash
    Size
    Bolt
    Hole
    (A)
    (B)
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1
    		1
    		1616Raised5 7/8"7/8"1"44"1500
    		Steel
    		3,700 psi @ 72° F3,200 psi @ 300° F1153T430000000
     
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