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    30 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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Long-Neck Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Long-Neck Flanges, Butt Weld, Raised Surface.
    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Iron and Steel Unthreaded Pipe Flanges, Long-Neck Flanges, Butt Weld, Raised Surface.

    Front

    Raised Surface on

    Back

    Long-neck weld flanges have a square-cut end for welding directly to a pressure vessel or tank. With a longer neck than butt-weld flanges, they stick out farther from your tank wall for easier access to bolts. These flanges eliminate the need to weld a flange to a length of pipe.
    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.
    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
    1
    Raised4 1/4"1/2"5/8"43 1/8"150
    Steel
    285 psi @ 72° F230 psi @ 300° F68095K1810000000
    1 1/2
    1 1/2
    Raised5"1/2"5/8"43 7/8"150
    Steel
    285 psi @ 72° F230 psi @ 300° F68095K182000000
    2
    2
    Raised6"5/8"3/4"44 3/4"150
    Steel
    285 psi @ 72° F230 psi @ 300° F68095K183000000
    3
    3
    Raised7 1/2"5/8"3/4"46"150
    Steel
    285 psi @ 72° F230 psi @ 300° F68095K184000000
    4
    4
    Raised9"5/8"3/4"87 1/2"150
    Steel
    285 psi @ 72° F230 psi @ 300° F68095K185000000
    6
    6
    Raised11"3/4"1"89 1/2"150
    Steel
    285 psi @ 72° F230 psi @ 300° F68095K186000000
     

    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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Forged Long-Neck Flanges
    Image of Product. Front. Front orientation. Pipe and Fittings. Low-Pressure Stainless Steel Unthreaded Pipe Flanges, Forged Long-Neck Flanges, Butt Weld, Raised Surface.

    Front

    Image of Product. Raised Surface on Back. Back orientation. Pipe and Fittings. Low-Pressure Stainless Steel Unthreaded Pipe Flanges, Forged Long-Neck Flanges, Butt Weld, Raised Surface.

    Raised Surface on Back

    Forged flanges have better strength than cast flanges.
    Long-neck weld flanges have a square-cut end for welding directly to a pressure vessel or tank. With a longer neck than butt-weld flanges, they stick out farther from your tank wall for easier access to bolts. These flanges eliminate the need to weld a flange to a length of pipe.
    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.
    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.
    Pipe
    Size
    Bolt
    Hole
    304/304L
    Stainless Steel
    316/316L
    Stainless Steel
    (A)
    (B)
    Flanged Connection
    Surface (B)
    Flange
    OD
    For Bolt
    Dia.
    Dia.
    No.
    Of
    Bolt Circle
    Dia.
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Each
    Butt Weld
    1
    1
    Raised4 1/4"1/2"0.62"43 1/8"230 psi @ 72° F175 psi @ 300° F44685K102000000044695K1020000000
    1 1/2
    1 1/2
    Raised5"1/2"0.62"43 7/8"230 psi @ 72° F175 psi @ 300° F44685K10300000044695K103000000
    2
    2
    Raised6"5/8"3/4"44 3/4"230 psi @ 72° F175 psi @ 300° F44685K10400000044695K104000000
    3
    3
    Raised7 1/2"5/8"3/4"46"230 psi @ 72° F175 psi @ 300° F44685K10500000044695K105000000
    4
    4
    Raised9"5/8"3/4"87 1/2"230 psi @ 72° F175 psi @ 300° F44685K1060000000044695K10600000000
    6
    6
    Raised11"3/4"0.88"89 1/2"230 psi @ 72° F175 psi @ 300° F44685K1070000000044695K10700000000
     

    Gas Burners

    Distribute heat evenly to avoid hotspots with these heavy duty multiflame burners.
    Rectangular Burners
    Image of Product. Front orientation. Gas Burners. Gas Burners, Rectangular Burners.
    Burner
    Overall
    Gas Inlet
    Heat Output,
    BTU/hr
    Wd.
    Dp.
    Lg.
    Ht.
    Thread
    Size
    Connection
    Gender
    Material
    Features
    For Use
    With
    Each
    30,0008 1/4"2 1/8"14"4 1/2"1/4 NPTThreadedFemaleIronBrass On/Off Valve, Gas MixerNatural Gas3318K140000000
    90,00016"4 3/4"20 1/2"7"1/2 NPTThreadedFemaleIronBrass On/Off Valve, Gas MixerNatural Gas3318K16000000
    Round Burners
    Image of Product. Front orientation. Gas Burners. Gas Burners, Round Burners, 1 Burner Ring.
    Image of Product. Front orientation. Gas Burners. Gas Burners, Round Burners, 2 Burner Rings.
    Image of Product. Front orientation. Gas Burners. Gas Burners, Round Burners, 3 Burner Rings.

    1 Burner Ring

    2 Burner Rings

    3 Burner Rings

    Overall
    Gas Inlet
    Heat Output,
    BTU/hr
    No. of Burner
    Rings
    Burner
    Dia.
    Lg.
    Ht.
    Thread
    Size
    Connection
    Gender
    Material
    Features
    For Use
    With
    Each
    15,00014 1/2"15 1/2"5 1/4"1/4 NPTThreadedMaleIronBrass On/Off Valve, Gas MixerNatural Gas3314K110000000
    53,00028"15 1/2"5 1/4"1 NPTThreadedMaleIronBrass On/Off Valve on Each Ring, Gas MixerNatural Gas3314K1200000000
    107,000312"15 1/2"5 1/4"1 NPTThreadedMaleIronBrass On/Off Valve on Each Ring, Gas MixerNatural Gas3314K1300000000
    Straight Burners
    Image of Product. Front orientation. Gas Burners. Gas Burners, Straight Burners.
    Burner
    Overall
    Gas Inlet
    Heat Output,
    BTU/hr
    Dia.
    Lg.
    Lg.
    Ht.
    Thread
    Size
    Connection
    Gender
    Material
    Features
    For Use
    With
    Each
    9,5001/2"12"18"1 7/8"1/4 NPTThreadedMaleIronBrass On/Off Valve, Gas MixerNatural Gas3316K20000000
    24,0001"18"29 1/2"2 3/8"1/2 NPTThreadedMaleIronBrass On/Off Valve, Gas MixerNatural Gas3316K4000000
    42,0001 1/4"36"49"2 3/4"1/2 NPTThreadedMaleIronBrass On/Off Valve, Gas MixerNatural Gas3316K6000000
    66,0001 1/2"60"74 1/2"3 3/8"1/2 NPTThreadedMaleIronBrass On/Off Valve, Gas MixerNatural Gas3316K8000000

    Torch-Style Gas Burners

    Image of Product. Front orientation. Gas Burners. Torch-Style Gas Burners.
    Accelerate gas flow into an intense flame. These powerful burners are also known as venturi nozzles and buzzer burners.
    Gas Inlet
    Heat Output,
    BTU/hr
    Nozzle
    Dia.
    Overall
    Lg.
    Thread
    Size
    Connection
    Gender
    Material
    For Use
    With
    Each
    25,0001 5/8"15"1/4 NPTThreadedFemaleIronNatural Gas32565K7310000000
    100,0003 5/16"26 1/2"1/2 NPTThreadedFemaleIronNatural Gas32565K761000000

    Bench-Top Gas Burners

    Image of Product. Front orientation. Gas Burners. Bench-Top Gas Burners.
    Also known as Bunsen and Tirrill burners, separate controls adjust flame height and temperature.
    Overall
    Gas Inlet
    Heat Output,
    BTU/hr
    Nozzle
    Dia.
    Wd.
    Ht.
    Connection
    For Hose
    ID
    Gender
    Material
    For Use
    With
    Each
    5,60011/16"3 1/2"6"Barbed
    5/16"MaleAluminum
    Natural Gas1558N1000000
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