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    26 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

    Performance

    Threading

    Low-Pressure Brass and Bronze Threaded Pipe Flanges

    Also known as Pressure Class 150 flanges, these are designed for low-pressure applications. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges have good corrosion resistance. To adhere to safety standards for drinking water systems, use flanges that meet NSF/ANSI 61.
    Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Brass and Bronze Threaded Pipe Flanges, Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Brass and Bronze Threaded Pipe Flanges, Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Flat Surface.

    Front

    Flat Surface

    on Back

    NSF/ANSI 61—To adhere to safety standards for drinking water systems, use pipe that meets NSF/ANSI 61.
    Pipe
    Size
    Bolt
    Hole
    (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.
    Food Industry
    Std.
    Each
    NPT Female
    1/2
    		1/2
    		Flat3 1/2"1/2"5/8"42 3/8"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K551000000
    3/4
    		3/4
    		Flat3 7/8"1/2"5/8"42 3/4"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K55200000
    1
    		1
    		Flat4 1/4"1/2"5/8"43 1/8"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K55300000
    1 1/4
    		1 1/4
    		Flat4 5/8"1/2"5/8"43 1/2"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K554000000
    1 1/2
    		1 1/2
    		Flat5"1/2"5/8"43 7/8"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K555000000
    2
    		2
    		Flat6"5/8"3/4"44 3/4"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K556000000
    2 1/2
    		2 1/2
    		Flat7"5/8"3/4"45 1/2"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K557000000
    3
    		3
    		Flat7 1/2"5/8"3/4"46"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K558000000
    4
    		4
    		Flat9"5/8"3/4"87 1/2"150
    		Brass225 psi @ 72° F—NSF/ANSI 61
    		4429K559000000
     
    BSPT Female
    1/2
    		1/2
    		Flat3 1/2"1/2"5/8"42 3/8"150
    		Bronze200 psi @ 72° F125 psi @ 400° F—4978K19400000
    3/4
    		3/4
    		Flat3 7/8"1/2"5/8"42 3/4"150
    		Bronze200 psi @ 72° F125 psi @ 400° F—4978K19500000
    1
    		1
    		Flat4 1/4"1/2"5/8"43 1/8"150
    		Bronze200 psi @ 72° F125 psi @ 400° F—4978K196000000
    1 1/2
    		1 1/2
    		Flat5"1/2"5/8"43 7/8"150
    		Bronze200 psi @ 72° F125 psi @ 400° F—4978K198000000
    2
    		2
    		Flat6"5/8"3/4"44 3/4"150
    		Bronze200 psi @ 72° F125 psi @ 400° F—4978K199000000
     

    Low-Pressure Brass and Bronze Unthreaded Pipe Flanges

    Bolt these flanges to equipment or to another same-size, flat-surface flange with a gasket (sold separately). They have good corrosion resistance.
    Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Brass and Bronze Unthreaded Pipe Flanges, Flanges, Braze Socket Female, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Brass and Bronze Unthreaded Pipe Flanges, Flanges, Braze Socket Female, Flat Surface.

    Front

    Flat Surface

    on Back

    Braze-Socket Fitting Connection—Braze socket flanges braze onto unthreaded pipe with a brazing ring (sold separately) for a strong, leak-resistant connection. They are also known as Silbraze flanges.
    Flanges
    Brazing Rings
    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    Each
    Braze Socket Female
    1/2
    		1/2
    		Flat3 1/2"1/2"5/8"42 3/8"Bronze200 psi @ 72° F200 psi @ 425° FMil. Spec.
    		2190K3900000002190K4500000
    3/4
    		3/4
    		Flat3 7/8"1/2"5/8"42 3/4"Bronze200 psi @ 72° F200 psi @ 425° FMil. Spec.
    		2190K410000002190K460000
    1
    		1
    		Flat4 1/4"1/2"5/8"43 1/8"Bronze200 psi @ 72° F200 psi @ 425° FMil. Spec.
    		2190K420000002190K470000
    1 1/2
    		1 1/2
    		Flat5"1/2"5/8"43 7/8"Bronze200 psi @ 72° F200 psi @ 425° FMil. Spec.
    		2190K430000002190K4800000
    2
    		2
    		Flat6"5/8"3/4"44 3/4"Bronze200 psi @ 72° F200 psi @ 425° FMil. Spec.
    		2190K440000002190K4900000
     
    Blind Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Brass and Bronze Unthreaded Pipe Flanges, Blind Flanges, Flanged, Flat.
    Image of Product. Flat Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Brass and Bronze Unthreaded Pipe Flanges, Blind Flanges, Flanged, Flat.

    Front

    Flat Surface on

    Back

    Bolt
    Hole
    Pipe
    Size
    Flanged Connection
    Surface
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Each
    Flanged
    2
    		Flat6"1/2"3/4"44 3/4"150
    		Brass225 psi @ 72° F4429K8610000000
    2 1/2
    		Flat7"1/2"3/4"45 1/2"150
    		Brass225 psi @ 72° F4429K862000000
     
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