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    125 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.

    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.
    Flanges
    Image of System. Stub-End Flange with Straight Adapter: Front. Front orientation. Contains Annotated. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Flanges, Stub-End Female, Flat Surface.

    Stub-End Flange with Straight

    Adapter: Front

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

    Butt Weld:

    Front

    Butt

    Weld:

    Raised

    Surface

    on Back

    Slip-On

    Weld:

    Front

    Slip-On

    Weld:

    Raised

    Surface

    on Back

    Socket Connect:

    Front

    Socket

    Connect:

    Raised

    Surface

    on Back

    Stub End:

    Flat

    Surface

    on Back

    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.
    Stub-End Fitting Connection—Stub-end flanges are also known as lap-joint flanges. Use them with a stub-end straight adapter (not included). The stub-end straight adapter slides into the flange and welds to pipe (not the flange). Since the flange isn’t welded to the pipe, it can be disconnected easily for frequent cleaning and inspecting.
    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.
    Each
    Butt Weld
    1/2
    		1/2
    		Raised3 1/2"1/2"5/8"42 3/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K415000000
    3/4
    		3/4
    		Raised3 7/8"1/2"5/8"42 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36400000
    1
    		1
    		Raised4 1/4"1/2"5/8"43 1/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36500000
    1
    		1
    		Raised115 mm12 mm14 mm485 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1100000
    1 1/4
    		1 1/4
    		Raised4 5/8"1/2"5/8"43 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36700000
    1 1/2
    		1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36800000
    2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36900000
    2
    		2
    		Raised165 mm16 mm18 mm4125 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1200000
    2 1/2
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37100000
    3
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37200000
    3
    		3
    		Raised200 mm16 mm18 mm8160 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1300000
    4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37300000
    4
    		4
    		Raised220 mm16 mm18 mm8180 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1400000
    5
    		5
    		Raised10"3/4"7/8"88 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K41300000
    6
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37400000
    8
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K414000000
    10
    		10
    		Raised16"7/8"1"1214 1/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K57000000
    12
    		12
    		Raised19"7/8"1"1217"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K58000000
     
    Slip-On Weld Female
    1/2
    		1/2
    		Raised3 1/2"1/2"5/8"42 3/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39800000
    3/4
    		3/4
    		Raised3 7/8"1/2"5/8"42 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K34400000
    1
    		1
    		Raised4 1/4"1/2"5/8"43 1/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K34500000
    1
    		1
    		Raised4 59/64"5/8"0.748"43 35/64"—Steel
    		Not RatedNot Rated1752N1400000
    1
    		1
    		Raised115 mm12 mm14 mm485 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1900000
    1 1/4
    		1 1/4
    		Raised4 5/8"1/2"5/8"43 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K34600000
    1 1/2
    		1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K34700000
    1 1/2
    		1 1/2
    		Raised5 33/64"5/8"0.748"44 9/64"—Steel
    		Not RatedNot Rated1752N1500000
    2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K34800000
    2
    		2
    		Raised6 7/64"5/8"0.748"44 23/32"—Steel
    		Not RatedNot Rated1752N1600000
    2
    		2
    		Raised165 mm16 mm18 mm4125 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T2100000
    2 1/2
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K34900000
    3
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35100000
    3
    		3
    		Raised200 mm16 mm18 mm8160 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T2200000
    4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35200000
    4
    		4
    		Raised220 mm16 mm18 mm8180 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T2300000
    5
    		5
    		Raised10"3/4"7/8"88 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39600000
    6
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35300000
    8
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K397000000
    10
    		10
    		Raised16"7/8"1"1214 1/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K53000000
    12
    		12
    		Raised19"7/8"1"1217"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K54000000
     
    Socket-Connect Female
    1/2
    		1/2
    		Raised3 1/2"1/2"5/8"42 3/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K41200000
    3/4
    		3/4
    		Raised3 7/8"1/2"5/8"42 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35400000
    1
    		1
    		Raised4 1/4"1/2"5/8"43 1/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35500000
    1 1/4
    		1 1/4
    		Raised4 5/8"1/2"5/8"43 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35600000
    1 1/2
    		1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35700000
    2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35800000
    2 1/2
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K35900000
    3
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36100000
    4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36200000
    5
    		5
    		Raised10"3/4"7/8"88 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39900000
    6
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K36300000
    8
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K411000000
    10
    		10
    		Raised16"7/8"1"1214 1/4"150
    		Steel
    		285 psi @ 72° FNot Rated68095K51000000
     
    Stub-End Female
    1/2
    		1/2
    		Flat3 1/2"1/2"5/8"42 3/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K42200000
    3/4
    		3/4
    		Flat3 7/8"1/2"5/8"42 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38500000
    1
    		1
    		Flat4 1/4"1/2"5/8"43 1/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38600000
    1 1/4
    		1 1/4
    		Flat4 5/8"1/2"5/8"43 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38700000
    1 1/2
    		1 1/2
    		Flat5"1/2"5/8"43 7/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38800000
    2
    		2
    		Flat6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38900000
    2 1/2
    		2 1/2
    		Flat7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39100000
    3
    		3
    		Flat7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39200000
    4
    		4
    		Flat9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39300000
    5
    		5
    		Flat10"3/4"7/8"88 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K41900000
    6
    		6
    		Flat11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K39400000
    8
    		8
    		Flat13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K421000000
    10
    		10
    		Flat16"7/8"1"1214 1/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K55000000
    12
    		12
    		Flat19"7/8"1"1217"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K56000000
     
    Forged Flanges
    Image of Product. Butt Weld: Front. Front orientation. Pipe and Fittings. Low-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. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Butt Weld, Raised Surface.
    Image of Product. Slip-On Weld: Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Slip-On Weld Female, Raised Surface.
    Image of Product. Slip-On Weld: Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Slip-On Weld Female, Raised Surface.
    Image of Product. Socket Connect: Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Socket-Connect Female, Raised Surface.
    Image of Product. Socket Connect: Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Flanges, Socket-Connect Female, Raised Surface.

    Butt Weld:

    Front

    Butt Weld:

    Raised

    Surface on

    Back

    Slip-On

    Weld: Front

    Slip-On

    Weld:

    Raised

    Surface on

    Back

    Socket Connect:

    Front

    Socket

    Connect:

    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.
    A350 Carbon Steel—Even in temperatures as low as -46° F, these flanges won’t become brittle, so they absorb impact better than other low-pressure steel flanges.
    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.
    Each
    Butt Weld
    2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N11000000
    3
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1200000
    4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1300000
    6
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N14000000
     
    Slip-On Weld Female
    1
    		1
    		Raised4 1/4"1/2"5/8"43 1/8"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1500000
    1 1/2
    		1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1600000
    2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1700000
    2 1/2
    		2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1800000
    3
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N1900000
    4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N2100000
    6
    		6
    		Raised11"3/4"7/8"89 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N22000000
    8
    		8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N23000000
     
    Socket-Connect Female
    2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N2400000
    3
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N2500000
    4
    		4
    		Raised9"5/8"3/4"87 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N2600000
     
    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
    1 1/2
    		2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K620000000
    2
    		3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F230 psi @ 300° F68095K63000000
    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
     
    Blind Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Blind Flanges, Flanged, Raised.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Blind Flanges, Flanged, Raised.

    Front

    Raised

    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.
    Max. Steam Pressure
    @ Temp.
    Each
    Flanged
    1/2
    		Raised3 1/2"1/2"5/8"42 3/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K418000000
    3/4
    		Raised3 7/8"1/2"5/8"42 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37500000
    1
    		Raised4 1/4"1/2"5/8"43 1/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37600000
    1
    		Raised4 59/64"5/8"0.748"43 35/64"—Steel
    		Not RatedNot Rated1752N1700000
    1
    		Raised115 mm12 mm14 mm485 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1500000
    1 1/4
    		Raised4 5/8"1/2"5/8"43 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37700000
    1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37800000
    1 1/2
    		Raised5 33/64"5/8"0.748"44 9/64"—Steel
    		Not RatedNot Rated1752N1800000
    2
    		Raised6"5/8"3/4"44 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K37900000
    2
    		Raised165 mm16 mm18 mm4125 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1600000
    2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38100000
    3
    		Raised7 1/2"5/8"3/4"46"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38200000
    3
    		Raised200 mm16 mm18 mm8160 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1700000
    4
    		Raised9"5/8"3/4"87 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38300000
    4
    		Raised220 mm16 mm18 mm8180 mm—Steel
    		230 psi @ 72° F180 psi @ 300° F1132T1800000
    5
    		Raised10"3/4"7/8"88 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K41600000
    6
    		Raised11"3/4"7/8"89 1/2"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K38400000
    8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K417000000
    10
    		Raised16"7/8"1"1214 1/4"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K59000000
    12
    		Raised19"7/8"1"1217"150
    		Steel
    		285 psi @ 72° F150 psi @ 300° F68095K61000000
     
    Forged Blind Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Forged Blind Flanges, Flanged, Raised.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Low-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.
    A350 Carbon Steel—Even in temperatures as low as -46° F, these flanges won’t become brittle, so they absorb impact better than other low-pressure steel flanges.
    Bolt
    Hole
    Pipe
    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
    		Raised4 1/2"1/2"5/8"43 1/8"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N27000000
    1 1/2
    		Raised5"1/2"5/8"43 7/8"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N2800000
    2
    		Raised6"5/8"3/4"44 3/4"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N2900000
    2 1/2
    		Raised7"5/8"3/4"45 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N3100000
    3
    		Raised7 1/2"5/8"3/4"46"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N3200000
    4
    		Raised9"5/8"3/4"87 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N3300000
    6
    		Raised11"3/4"7/8"89 1/2"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N34000000
    8
    		Raised13 1/2"3/4"7/8"811 3/4"150
    		A350 Carbon Steel285 psi @ 72° F230 psi @ 300° F5235N35000000
     
    Stub-End Straight Adapters
    Image of Product. Straight Adapter. Front orientation. Pipe Stub Ends. Low-Pressure Iron and Steel Unthreaded Pipe Flanges.

    Straight Adapter

    Stub-end straight adapters are used with flanges. Slide a flange onto the stub end and weld the stub end to pipe (not the flange). Since the flange isn’t welded to the pipe, it can be disconnected easily, which creates an access point for frequent cleaning and inspecting.
    Pipe
    Size
    Flange
    OD
    Construction
    Pipe
    Schedule
    Finished
    Material
    Each
    1/2
    		1 3/8"Seamless40
    		Steel
    		43425K115000000
    3/4
    		1 11/16"Seamless40
    		Steel
    		43425K12500000
    1
    		2"Seamless40
    		Steel
    		43425K13500000
    1 1/4
    		2 1/2"Seamless40
    		Steel
    		43425K145000000
    1 1/2
    		2 7/8"Seamless40
    		Steel
    		43425K155000000
    2
    		3 5/8"Seamless40
    		Steel
    		43425K165000000
    2 1/2
    		4 1/8"Seamless40
    		Steel
    		43425K175000000
    3
    		5"Seamless40
    		Steel
    		43425K185000000
    4
    		6 3/16"Seamless40
    		Steel
    		43425K215000000
    6
    		8 1/2"Seamless40
    		Steel
    		43425K235000000
    8
    		10 5/8"Seamless40
    		Steel
    		43425K245000000
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