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    137 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

    Performance

    Pressure Rating

    Low-Pressure Stainless Steel Threaded Pipe Flanges

    Also known as Pressure Class 150 flanges, these are designed for low-pressure pipe applications. Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point within a line.
    Forged Reducing Flanges
    Image of ProductInUse. Reducing Flange. Side1 orientation. Contains Annotated. Pipe and Fittings. Low-Pressure Stainless Steel Threaded Pipe Flanges, Forged Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Raised Surface.
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Stainless Steel Threaded Pipe Flanges, Forged Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Raised Surface.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Stainless Steel Threaded Pipe Flanges, Forged Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Raised Surface.

    Reducing

    Flange

    Front

    Raised

    Surface on

    Back

    Forged flanges have better strength than cast flanges.
    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    304/304L Stainless Steel—Flanges hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316/316L Stainless Steel—Flanges are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel flanges, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Bolt
    Hole
    304/304L
    Stainless Steel
    316/316L
    Stainless Steel
    Pipe Size
    (A)
    For Flange
    Pipe Size (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Each
    NPT Female
    1/4
    		1
    		Raised4 1/4"1/2"0.62"43 1/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K33100000044695K26000000
    1/2
    		1
    		Raised4 1/4"1/2"0.625"43 1/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K1410000044695K141000000
    1/2
    		1 1/2
    		Raised5"1/2"0.62"43.88"150
    		230 psi @ 72° F150 psi @ 360° F44685K23100000———0
    1/2
    		2
    		Raised6"5/8"0.75"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K33500000044695K264000000
    1/2
    		3
    		Raised7 1/2"5/8"0.75"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K232000000———0
    1/2
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K233000000———0
    3/4
    		1
    		Raised4 1/4"1/2"0.625"43 1/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K1420000044695K142000000
    3/4
    		1 1/2
    		Raised5"1/2"0.62"43 7/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K33300000044695K262000000
    3/4
    		2
    		Raised6"5/8"0.75"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K33600000044695K265000000
    3/4
    		3
    		Raised7 1/2"5/8"0.75"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K234000000———0
    3/4
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K235000000———0
    1
    		1 1/4
    		Raised4 5/8"1/2"0.62"43 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K33200000044695K261000000
    1
    		1 1/2
    		Raised5"1/2"0.625"43 7/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K14300000044695K143000000
    1
    		2
    		Raised6"5/8"0.75"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K14400000044695K144000000
    1
    		2 1/2
    		Raised7"5/8"0.75"45 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K236000000———0
    1
    		3
    		Raised7 1/2"5/8"0.75"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K237000000———0
    1
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K238000000———0
    1 1/4
    		1 1/2
    		Raised5"1/2"0.62"43 7/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K33400000044695K263000000
    1 1/4
    		2
    		Raised6"5/8"0.75"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K33700000044695K266000000
    1 1/4
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K239000000———0
    1 1/2
    		2
    		Raised6"5/8"0.75"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K33800000044695K267000000
    1 1/2
    		2 1/2
    		Raised7"5/8"0.75"45 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K241000000———0
    1 1/2
    		3
    		Raised7 1/2"5/8"0.75"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K242000000———0
    1 1/2
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K243000000———0
    2
    		2 1/2
    		Raised7"1/2"0.62"45 1/2"150
    		230 psi @ 72° F150 psi @ 360° F———044695K268000000
    2
    		2 1/2
    		Raised7"5/8"0.75"45 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K339000000———0
    2
    		3
    		Raised7 1/2"5/8"0.75"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K14500000044695K145000000
    2
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K34100000044695K269000000
    2 1/2
    		3
    		Raised7 1/2"5/8"0.75"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K244000000———0
    2 1/2
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K245000000———0
    3
    		4
    		Raised9"5/8"0.75"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K34200000044695K27000000
    4
    		6
    		Raised11"3/4"0.88"89 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K34300000044695K271000000
    6
    		8
    		Raised13 1/2"3/4"0.88"811 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K246000000———0
     

    Low-Pressure Iron and Steel Threaded Pipe Flanges

    Use these flanges for low-pressure applications in noncorrosive environments. Bolt two flanges of the same size together with a gasket (sold separately) to create an access point within a line.
    Forged Reducing Flanges
    Image of ProductInUse. Reducing Flange. Side1 orientation. Contains Annotated. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Flanges, Forged Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Raised Surface.
    Image of Product. Raised Surface on Back. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Flanges, Forged Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Raised Surface.
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Threaded Pipe Flanges, Forged Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Raised Surface.

    Reducing

    Flange

    Raised

    Surface on

    Back

    Front

    Forged flanges have better strength than cast flanges.
    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Bolt
    Hole
    Pipe Size
    (A)
    For Flange
    Pipe Size (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
    1/4
    		1
    		Raised4 1/4"1/2"5/8"43.12"150
    		Steel
    		Not Rated—1802N11000000
    1/2
    		3/4
    		Raised3 7/8"1/2"5/8"42 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N2900000
    1/2
    		1
    		Raised4 1/4"1/2"5/8"43.12"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N1200000
    1/2
    		1 1/2
    		Raised5"1/2"5/8"43.88"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N3100000
    1/2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N18000000
    1/2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N41000000
    1/2
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N47000000
    3/4
    		1
    		Raised4 1/4"1/2"5/8"43.12"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N1300000
    3/4
    		1 1/2
    		Raised5"1/2"5/8"43.88"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N1500000
    3/4
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N19000000
    3/4
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N39000000
    3/4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N46000000
    1
    		1 1/4
    		Raised4 5/8"1/2"5/8"43 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N14000000
    1
    		1 1/2
    		Raised5"1/2"5/8"43.88"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N1600000
    1
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N21000000
    1
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N34000000
    1
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N38000000
    1
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N45000000
    1 1/4
    		1 1/2
    		Raised5"1/2"5/8"43.88"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N1700000
    1 1/4
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N22000000
    1 1/4
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N37000000
    1 1/4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N44000000
    1 1/2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N23000000
    1 1/2
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N32000000
    1 1/2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N36000000
    1 1/2
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N43000000
    2
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N24000000
    2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N25000000
    2
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N26000000
    2
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F8128K102000000
    2 1/2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N35000000
    2 1/2
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N42000000
    3
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N27000000
    3
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F8128K101000000
    4
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N28000000
    5
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N48000000
    6
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F1802N49000000
     

    Low-Pressure Stainless Steel Unthreaded Pipe Flanges

    Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line.
    Forged Reducing Flanges
    Image of ProductInUse. Reducing Flange. Side1 orientation. Contains Annotated. Pipe and Fittings. Low-Pressure Stainless Steel Unthreaded Pipe Flanges, Forged Reducing Flanges, Slip-On Weld Female, Raised Surface.
    Image of Product. Slip-On Front. Front orientation. Pipe and Fittings. Low-Pressure Stainless Steel Unthreaded Pipe Flanges, Forged Reducing Flanges, Slip-On Weld Female, Raised Surface.
    Image of Product. Slip-On Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Stainless Steel Unthreaded Pipe Flanges, Forged Reducing Flanges, Slip-On Weld Female, Raised Surface.

    Reducing

    Flange

    Slip-On Front

    Slip-On

    Raised

    Surface on

    Back

    Forged flanges have better strength than cast flanges.
    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Slip-on-Weld Fitting Connection—Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.
    304/304L Stainless Steel—Flanges hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316/316L Stainless Steel—Flanges are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel flanges, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Bolt
    Hole
    304/304L
    Stainless Steel
    316/316L
    Stainless Steel
    Pipe Size
    (A)
    For Flange
    Pipe Size (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Each
    Slip-On Weld Female
    3/4
    		1
    		Raised4 1/4"1/2"0.62"43 1/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K34400000044695K2720000000
    1
    		—Raised5"1/2"0.62"43 7/8"150
    		230 psi @ 72° F150 psi @ 360° F———044695K273000000
    1
    		1 1/2
    		Raised5"1/2"0.62"43 7/8"150
    		230 psi @ 72° F150 psi @ 360° F44685K34500000———0
    1
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K13100000044695K131000000
    1 1/2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K34600000044695K274000000
    2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		230 psi @ 72° F150 psi @ 360° F44685K13200000044695K132000000
    2
    		4
    		Raised9"5/8"3/4"87"150
    		230 psi @ 72° F150 psi @ 360° F44685K34700000044695K275000000
    3
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K13300000044695K133000000
    4
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		230 psi @ 72° F150 psi @ 360° F44685K13400000044695K134000000
    6
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		230 psi @ 72° F150 psi @ 360° F44685K135000000———0
     

    Low-Pressure Iron and Steel Unthreaded Pipe Flanges

    Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line. Flanges are for use with low-pressure applications in noncorrosive environments.
    Reducing Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Reducing Flanges, Slip-On Weld Female, Raised Surface.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Reducing Flanges, Slip-On Weld Female, Raised Surface.

    Front

    Raised

    Surface on

    Back

    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Slip-on-Weld Fitting Connection—Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.
    Bolt
    Hole
    Pipe Size
    (A)
    For Flange
    Pipe Size (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
    Slip-On Weld Female
    3/4
    		1
    		Raised4 1/4"1/2"5/8"43 1/8"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K187000000
    1
    		1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K18800000
    1
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K18900000
    1 1/2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K62000000
    2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K63000000
    2
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K191000000
    3
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K64000000
    4
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K65000000
    6
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K66000000
     

    Low-Pressure Aluminum Threaded Pipe Flanges

    Also known as Pressure Class 125 flanges, these are for use in low-pressure applications. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges are aluminum, which is lightweight with good corrosion resistance.
    Reducing Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Flanges, Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Flanges, Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Flat Surface.

    Front

    Flat Surface

    on Back

    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Bolt
    Hole
    Pipe Size
    (A)
    For Flange
    Pipe Size (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		3/4
    		Flat3 7/8"1/2"5/8"42 3/4"125
    		356 Aluminum150 psi @ 72° F44705K712000000
    3/4
    		1
    		Flat4 1/4"1/2"5/8"43 1/8"125
    		356 Aluminum150 psi @ 72° F44705K71500000
    1
    		1 1/4
    		Flat4 5/8"1/2"5/8"43 1/2"125
    		356 Aluminum150 psi @ 72° F44705K71800000
    1 1/4
    		1 1/2
    		Flat5"1/2"5/8"43 7/8"125
    		356 Aluminum150 psi @ 72° F44705K72100000
    1 1/2
    		2
    		Flat6"5/8"3/4"44 3/4"125
    		356 Aluminum150 psi @ 72° F44705K72400000
    2
    		2 1/2
    		Flat7"5/8"3/4"45 1/2"125
    		356 Aluminum150 psi @ 72° F44705K72700000
    2
    		3
    		Flat7 1/2"5/8"3/4"46"125
    		356 Aluminum150 psi @ 72° F44705K733000000
    3
    		4
    		Flat9"5/8"3/4"87 1/2"125
    		356 Aluminum150 psi @ 72° F44705K736000000
    4
    		6
    		Flat11"3/4"7/8"89 1/2"125
    		356 Aluminum150 psi @ 72° F44705K739000000
    6
    		8
    		Flat13 1/2"3/4"7/8"811 3/4"125
    		356 Aluminum150 psi @ 72° F44705K742000000
     

    Low-Pressure Aluminum Unthreaded Pipe Flanges

    Also known as Pressure Class 125 flanges, these are for use in low-pressure applications. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges are aluminum, which is lightweight with good corrosion resistance.
    Reducing Flanges
    Image of ProductInUse. Slip-On Weld. Side1 orientation. Contains Annotated. Pipe and Fittings. Low-Pressure Aluminum Unthreaded Pipe Flanges, Reducing Flanges, Slip-On Weld Female, Flat Surface.
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Unthreaded Pipe Flanges, Reducing Flanges, Slip-On Weld Female, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Aluminum Unthreaded Pipe Flanges, Reducing Flanges, Slip-On Weld Female, Flat Surface.

    Slip-On Weld

    Front

    Flat Surface

    on Back

    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Slip-on-Weld Fitting Connection—Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.
    Bolt
    Hole
    Pipe Size
    (A)
    For Flange
    Pipe Size (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Each
    Slip-On Weld Female
    3
    		4
    		Flat9"5/8"3/4"87 1/2"125
    		356 Aluminum150 psi @ 72° F44705K7680000000
    6
    		8
    		Flat13 1/2"3/4"7/8"811 3/4"125
    		356 Aluminum150 psi @ 72° F44705K771000000
     

    FM-Approved Low-Pressure Iron and Steel Threaded Pipe Flanges

    Suitable for use in fire-protection applications, these flanges are brittle and can be quickly opened with the strike of a sledge hammer. Bolt two flanges of the same size together with a gasket (sold separately) to create an access point within a line. Use in noncorrosive environments.
    Cast Reducing Flanges
    Image of ProductInUse. Reducing Flange. Side1 orientation. Contains Annotated. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Flanges, Cast Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Flat Surface.
    Image of Product. Front. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Flanges, Cast Reducing Flanges, Flanged Fitting Connection, Female, Threaded Fitting Connection, Flat Surface.

    Reducing

    Flange

    Front

    Cast flanges are also called MSS flanges.
    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Bolt
    Hole
    Pipe Size
    (A)
    For Flange
    Pipe Size (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
    NPT Female
    2
    		2 1/2
    		Flat7"5/8"3/4"45 1/2"Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved
    		68185K1010000000
    2
    		3
    		Flat7 1/2"5/8"3/4"46"Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved
    		68185K102000000
    2
    		4
    		Flat9"5/8"3/4"87 1/2"Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved
    		68185K103000000
    3
    		4
    		Flat9"5/8"3/4"87 1/2"Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved
    		68185K104000000
    4
    		6
    		Flat11"3/4"7/8"89 1/2"Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved
    		68185K105000000
     

    Drain, Waste, and Vent Standard-Wall PVC Pipe Flanges for Water

    Also known as Schedule 40 flanges, these are the industry standard for gravity-flow drain, waste, and vent (DWV) applications. They are PVC for good corrosion resistance. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. They have socket-connect ends that attach to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld). Flanges meet ASTM D1784 and ASTM D2665 specifications and testing requirements for material quality.
    Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.
    Reducing Flanges
    Image of Product. Flat Surface on Back. Back orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent Standard-Wall PVC Pipe Flanges for Water, Reducing Flanges, Cement Socket Female, Flat Surface.
    Image of Product. Front. Front orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent Standard-Wall PVC Pipe Flanges for Water, Reducing Flanges, Cement Socket Female, Flat Surface.

    Flat Surface on Back

    Front

    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    Cement Socket Female
    3
    		4
    		Flat7"1/4"1/4"46"40
    		PVCWhiteNot Rated2389K91000000
     
    Pipe Cement
    Each
    Pipe Cement for Max. Pipe Size 6 (8-fl. oz. Can)74605A91100000
    Rotating 45° Elbow Reducing Flanges
    Image of Product. Female. Front orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent Standard-Wall PVC Pipe Flanges for Water, Rotating 45° Elbow Reducing Flanges, Cement Socket Female, Flat Surface.

    Female

    Rotating flanges have a ring that swivels for easy bolt hole alignment.
    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    Cement Socket Female
    3
    		4
    		Flat7"3/16"5/16"66 1/8"40
    		PVCWhiteNot Rated2389K9000000
     
    Pipe Cement
    Each
    Pipe Cement for Max. Pipe Size 6 (8-fl. oz. Can)74605A91100000

    Drain, Waste, and Vent ABS Pipe Flanges for Chemicals

    These Schedule 40 flanges are an economical choice for gravity-flow chemical waste systems. Flanges are ABS plastic, which has excellent strength and impact resistance and good chemical resistance. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. They have socket-connect ends that attach to unthreaded pipe or another socket-connect fitting with ABS cement (also known as solvent weld). They meet ASTM D2661, ASTM D3311, ASTM D3965, and ASTM F1498 specifications and testing requirements for material quality and product dimensions.
    Warning: Never use plastic pipe fittings, flanges, and pipe with compressed air or gas.
    Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Flanges, Cement Socket Female, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Flanges, Cement Socket Female, Flat Surface.

    Front

    Flat Surface on

    Back

    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    Cement Socket Female
    4
    		4
    		Flat7"1/4"1/4"46"40
    		ABSBlackNot Rated1608T181000000
     
    Pipe Cement
    Each
    Pipe Cement (8-fl. oz. Can)74605A8500000
    Rotating Flanges
    Image of Product. Front. Front orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Rotating Flanges, Cement Socket Female, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Rotating Flanges, Cement Socket Female, Flat Surface.

    Front

    Flat Surface on Back

    Rotating flanges have a ring that swivels for easy bolt hole alignment.
    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    Cement Socket Female
    4
    		4
    		Flat7"1/4"1/4"66 1/8"40
    		ABSBlackNot Rated1608T182000000
     
    Pipe Cement
    Each
    Pipe Cement (8-fl. oz. Can)74605A8500000
    Reducing Flanges
    Image of Product. Front. Front orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Reducing Flanges, Cement Socket Female, Flat Surface.
    Image of Product. Flat Surface on Back. Back orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Reducing Flanges, Cement Socket Female, Flat Surface.

    Front

    Flat Surface on Back

    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    Cement Socket Female
    3
    		4
    		Flat7"1/4"1/4"46"40
    		ABSBlackNot Rated1608T183000000
     
    Pipe Cement
    Each
    Pipe Cement (8-fl. oz. Can)74605A8500000
    Rotating 45° Elbow Reducing Flanges
    Image of Product. Cement Socket Female. Front orientation. Contains Annotated. Pipe and Fittings. Drain, Waste, and Vent ABS Pipe Flanges for Chemicals, Rotating 45° Elbow Reducing Flanges, Cement Socket Female, Flat Surface.

    Cement Socket Female

    Rotating flanges have a ring that swivels for easy bolt hole alignment.
    Reducing flanges allow you to transition your system to a smaller pipe size; attach to a flange with a larger pipe size but with the same flange dimensions.
    Pipe
    Size
    Bolt
    Hole
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Pipe
    Schedule
    Material
    Color
    Max. Pressure
    @ Temp.
    Each
    Cement Socket Female
    3
    		4
    		Flat7"3/16"1/4"66 1/8"40
    		ABSBlackNot Rated1608T201000000
     
    Pipe Cement
    Each
    Pipe Cement (8-fl. oz. Can)74605A8500000
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