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    192 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

    Fitting Type

    High-Pressure Iron and Steel Threaded Pipe Fittings

    These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.
    Note: The maximum pressure listed for Class 3000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.
    Straight Adapters
    Image of Product. Threaded NPT Female × Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Iron and Steel Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Female, Butt-Weld Fitting Connection.

    Threaded NPT

    Female × Butt Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Zinc-Phosphate-Coated Steel—A phosphate coating offers some corrosion resistance, but these fittings aren't intended for corrosive environments.
    Pipe
    Size
    Dash
    Size
    (A)
    (B)
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/8
    		1/8
    		02023000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K27100000
    1/4
    		1/4
    		04043000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K710000
    3/8
    		3/8
    		06063000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K720000
    1/2
    		1/2
    		08083000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K730000
    3/4
    		3/4
    		12123000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K740000
    1
    		1
    		16163000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K750000
    1 1/4
    		1 1/4
    		20203000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K760000
    1 1/2
    		1 1/2
    		24243000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K770000
    2
    		2
    		32323000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K7800000
    2 1/2
    		2 1/2
    		40403000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K27200000
    3
    		3
    		48483000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K27300000
    4
    		4
    		64643000
    		Zinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K27400000
     

    Low-Pressure Stainless Steel Threaded Pipe Fittings

    Use these fittings in a low-pressure pipe line.
    Straight Adapters
    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Pipe
    Size
    304 Stainless Steel
    316 Stainless Steel
    (A)
    (B)
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    Image of Product. Female × Butt Weld. Front orientation. Pipe and Fittings. Low-Pressure Stainless Steel Threaded Pipe Fittings, Straight Adapters, Female, Butt-Weld Fitting Connection, Threaded Fitting Connection.

    Female × Butt

    Weld

    1/8
    		1/8
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K36400000300 psi @ 72° F150 psi @ 350° F4452K13800000
    1/4
    		1/4
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K4710000300 psi @ 72° F150 psi @ 350° F4452K1390000
    3/8
    		3/8
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K4720000300 psi @ 72° F150 psi @ 350° F4452K2110000
    1/2
    		1/2
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K4730000300 psi @ 72° F150 psi @ 350° F4452K2120000
    3/4
    		3/4
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K4740000300 psi @ 72° F150 psi @ 350° F4452K2130000
    1
    		1
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K4750000300 psi @ 72° F150 psi @ 350° F4452K2140000
    1 1/4
    		1 1/4
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K47600000300 psi @ 72° F150 psi @ 350° F4452K21500000
    1 1/2
    		1 1/2
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K47700000300 psi @ 72° F150 psi @ 350° F4452K21600000
    2
    		2
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K47800000300 psi @ 72° F150 psi @ 350° F4452K21700000
    2 1/2
    		2 1/2
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K47900000300 psi @ 72° F150 psi @ 350° F4452K21800000
    3
    		3
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K48100000300 psi @ 72° F150 psi @ 350° F4452K21900000
    4
    		4
    		150
    		300 psi @ 72° F150 psi @ 350° F4464K48200000300 psi @ 72° F150 psi @ 350° F4452K221000000
     
    BSPT Female × Butt Weld
    Image of Product. Female × Butt Weld. Front orientation. Pipe and Fittings. Low-Pressure Stainless Steel Threaded Pipe Fittings, Straight Adapters, Butt-Weld Fitting Connection, Threaded Fitting Connection, Female.

    Female × Butt

    Weld

    1/8
    		1/8
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T2410000—————0
    1/4
    		1/4
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T2420000—————0
    3/8
    		3/8
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T2430000—————0
    1/2
    		1/2
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T2440000—————0
    3/4
    		3/4
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T2450000—————0
    1
    		1
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T24600000—————0
    1 1/2
    		1 1/2
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T24700000—————0
    2
    		2
    		150
    		300 psi @ 72° F150 psi @ 350° F4810T24800000—————0
     

    High-Pressure Stainless Steel Threaded Pipe Fittings

    Use these heavy duty fittings in high-pressure flow applications.
    Straight Adapters
    Image of Product. Female x Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Stainless Steel Threaded Pipe Fittings, Straight Adapters, Female, Butt-Weld Fitting Connection, Threaded Fitting Connection.

    Female x Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Pipe
    Size
    Dash
    Size
    304 Stainless Steel
    316 Stainless Steel
    (A)
    (B)
    (A)
    (B)
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/8
    		1/8
    		02023000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K571000003,000 psi @ 72° F2,800 psi @ 350° F4443K671000000
    1/4
    		1/4
    		04043000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K572000003,000 psi @ 72° F2,800 psi @ 350° F4443K67200000
    3/8
    		3/8
    		06063000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K573000003,000 psi @ 72° F2,800 psi @ 350° F4443K67300000
    1/2
    		1/2
    		08083000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K574000003,000 psi @ 72° F2,800 psi @ 350° F4443K67400000
    3/4
    		3/4
    		12123000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K575000003,000 psi @ 72° F2,800 psi @ 350° F4443K67500000
    1
    		1
    		16163000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K576000003,000 psi @ 72° F2,800 psi @ 350° F4443K67600000
    1 1/4
    		1 1/4
    		20203000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K577000003,000 psi @ 72° F2,800 psi @ 350° F4443K67700000
    1 1/2
    		1 1/2
    		24243000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K578000003,000 psi @ 72° F2,800 psi @ 350° F4443K678000000
    2
    		2
    		32323000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K579000003,000 psi @ 72° F2,800 psi @ 350° F4443K679000000
    2 1/2
    		2 1/2
    		40403000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K1710000003,000 psi @ 72° F2,800 psi @ 350° F4443K171000000
    3
    		3
    		48483000
    		2,500 psi @ 72° F1,900 psi @ 350° F45525K1720000003,000 psi @ 72° F2,800 psi @ 350° F4443K172000000
     

    Extreme-Pressure Iron and Steel Threaded Pipe Fittings

    The strongest steel fittings we offer, these can withstand extreme-pressure applications.
    Note: The maximum pressure listed for Class 6000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.
    Straight Connectors
    Image of Product. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, Straight Connectors, Threaded Fitting Connection, Female.

    Female, Threaded

    Fitting Connection

    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		086000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K6300000
    3/4
    		126000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K6400000
    1
    		166000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K6500000
    1 1/2
    		246000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K6700000
    2
    		326000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K6800000
     
    Union Straight Connectors
    Image of System. Exploded View. Front orientation. Exploded view. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, Union Straight Connectors, Threaded Fitting Connection, Female.

    Exploded View

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		086000
    		HexSteel6,000 psi @ 72° F300 psi @ 360° F43455K93000000
    3/4
    		126000
    		HexSteel6,000 psi @ 72° F300 psi @ 360° F43455K9400000
    1
    		166000
    		HexSteel6,000 psi @ 72° F300 psi @ 360° F43455K9500000
    1 1/2
    		246000
    		HexSteel6,000 psi @ 72° F300 psi @ 360° F43455K97000000
    2
    		326000
    		HexSteel6,000 psi @ 72° F300 psi @ 360° F43455K98000000
     
    Straight Adapters
    Image of Product. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Female, Butt-Weld Fitting Connection.

    Butt-Weld

    Fitting

    Connection,

    Female, Threaded

    Fitting

    Connection

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    Dash
    Size
    (A)
    (B)
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/4
    		1/4
    		04046000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K4100000
    3/8
    		3/8
    		06066000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K420000
    1/2
    		1/2
    		08086000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K730000
    3/4
    		3/4
    		12126000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K740000
    1
    		1
    		16166000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K750000
    1 1/4
    		1 1/4
    		20206000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K11500000
    1 1/2
    		1 1/2
    		24246000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K7700000
    2
    		2
    		32326000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K7800000
     
    90° Elbow Connectors
    Image of Product. Female. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, 90° Elbow Connectors, Threaded Fitting Connection, Female.

    Female

    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		086000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K13000000
    3/4
    		126000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K1400000
    1
    		166000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K1500000
    1 1/2
    		246000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K1700000
    2
    		326000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K18000000
     
    Tee Connectors
    Image of Product. Female. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, Tee Connectors, Threaded Fitting Connection, Female.

    Female

    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		086000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K43000000
    3/4
    		126000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K4400000
    1
    		166000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K4500000
    1 1/2
    		246000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K47000000
    2
    		326000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K48000000
     
    Caps
    Image of Product. Female. Front orientation. Pipe and Fittings. Extreme-Pressure Iron and Steel Threaded Pipe Fittings, Caps, Threaded Fitting Connection, Female.

    Female

    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		086000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K83000000
    3/4
    		126000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K8400000
    1
    		166000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K8500000
    1 1/2
    		246000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K8700000
    2
    		326000
    		Steel6,000 psi @ 72° F300 psi @ 360° F43455K8800000
     

    High-Pressure Galvanized Iron and Steel Threaded Pipe Fittings

    A galvanized finish gives these fittings better corrosion resistance than our plain steel high-pressure fittings. Also known as Pressure Class 3000 fittings, they have excellent strength to handle high-pressure applications.
    Straight Adapters
    Image of Product. Female × Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Galvanized Iron and Steel Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Female, Butt-Weld Fitting Connection.

    Female × Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    Dash
    Size
    (A)
    (B)
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/8
    		1/8
    		02023000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K15100000
    1/4
    		1/4
    		04043000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K1520000
    3/8
    		3/8
    		06063000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K1530000
    1/2
    		1/2
    		08083000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K1540000
    3/4
    		3/4
    		12123000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K1550000
    1
    		1
    		16163000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K1560000
    1 1/4
    		1 1/4
    		20203000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K1570000
    1 1/2
    		1 1/2
    		24243000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K15800000
    2
    		2
    		32323000
    		Galvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K15900000
     

    Low-Pressure Aluminum Threaded Pipe Fittings

    In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.
    Straight Adapters
    Image of Product. NPT Female × Butt Weld. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Female, Butt-Weld Fitting Connection.

    NPT Female ×

    Butt Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/8
    		1/8
    		150
    		6061 Aluminum150 psi @ 72° F44705K91600000
    1/4
    		1/4
    		150
    		6061 Aluminum150 psi @ 72° F44705K9170000
    3/8
    		3/8
    		150
    		6061 Aluminum150 psi @ 72° F44705K9180000
    1/2
    		1/2
    		150
    		6061 Aluminum150 psi @ 72° F44705K9190000
    3/4
    		3/4
    		150
    		6061 Aluminum150 psi @ 72° F44705K9110000
    1
    		1
    		150
    		6061 Aluminum150 psi @ 72° F44705K9210000
    1 1/4
    		1 1/4
    		150
    		6061 Aluminum150 psi @ 72° F44705K9220000
    1 1/2
    		1 1/2
    		150
    		6061 Aluminum150 psi @ 72° F44705K9230000
    2
    		2
    		150
    		6061 Aluminum150 psi @ 72° F44705K92400000
    2 1/2
    		2 1/2
    		150
    		6061 Aluminum150 psi @ 72° F44705K92600000
    3
    		3
    		150
    		6061 Aluminum150 psi @ 72° F44705K92700000
    4
    		4
    		150
    		6061 Aluminum150 psi @ 72° F44705K92800000
    6
    		6
    		150
    		6061 Aluminum150 psi @ 72° F44705K931000000
     
    180° Bend Connectors
    Image of Product. Front orientation. Pipe Traps. Low-Pressure Aluminum Threaded Pipe Fittings.
    180° bend connectors are also known as U-bends.
    Pipe
    Size
    Material
    Max. Pressure
    @ Temp.
    Shape
    Each
    NPT Female
    1/2
    		356 Aluminum150 psi @ 72° F180° Bend44705K479000000
    3/4
    		356 Aluminum150 psi @ 72° F180° Bend44705K48100000
    1
    		356 Aluminum150 psi @ 72° F180° Bend44705K48200000
     

    Medium-Pressure Stainless Steel Threaded Pipe Fittings

    Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.
    Straight Adapters
    Image of Product. Female x Butt Weld. Front orientation. Pipe and Fittings. Medium-Pressure Stainless Steel Threaded Pipe Fittings, Straight Adapters, Female, Butt-Weld Fitting Connection, Threaded Fitting Connection.

    Female x Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Pipe
    Size
    304
    Stainless Steel
    316
    Stainless Steel
    (A)
    (B)
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Each
    NPT Female × Butt Weld
    1/8
    		1/8
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K221000004452K51100000
    1/4
    		1/4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K22200004452K5120000
    3/8
    		3/8
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K22300004452K3130000
    1/2
    		1/2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K22400004452K3140000
    3/4
    		3/4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K22500004452K31500000
    1
    		1
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K226000004452K31600000
    1 1/4
    		1 1/4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K78000004452K51700000
    1 1/2
    		1 1/2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K79000004452K51800000
    2
    		2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K81000004452K51900000
    2 1/2
    		2 1/2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K161000004452K631000000
    3
    		3
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K2270000004452K632000000
    4
    		4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K2280000004452K633000000
     

    High-Pressure Iron and Steel Socket-Connect Pipe Fittings

    Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection. Fittings have heavy duty construction that stands up to high-pressure applications. They are for use in noncorrosive environments.
    Straight Adapters
    Image of Product. Front orientation. Pipe and Fittings. High-Pressure Iron and Steel Socket-Connect Pipe Fittings, Straight Adapters, Socket Connect Female × Butt Weld.

    Socket Connect

    Female × Butt

    Weld

    Socket Connect Female × Butt Weld—Socket connect x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    Socket Connect Female × Butt Weld
    1/8
    		1/8
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K21100000
    1/4
    		1/4
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K2120000
    3/8
    		3/8
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K2130000
    1/2
    		1/2
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K2140000
    3/4
    		3/4
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K2150000
    1
    		1
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K2160000
    1 1/4
    		1 1/4
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K21700000
    1 1/2
    		1 1/2
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K21800000
    2
    		2
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K21900000
    2 1/2
    		2 1/2
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K221000000
    3
    		3
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K222000000
    4
    		4
    		3000
    		Steel3,000 psi @ 72° FNot Rated45005K223000000
     

    Premium Low-Pressure Stainless Steel Threaded Pipe Fittings

    Unlike other stainless steel fittings, these are cast in the U.S. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition. All fittings except plugs adhere to ANSI/MSS SP-114 standards for heat treating, material thickness, and marking. It’s the highest quality standard for Pressure Class 150 low-pressure stainless steel fittings. They also meet either ASTM A351 or A479 requirements for parts that will be used in pressure systems. These stainless steel fittings are more corrosion resistant than steel fittings, and almost as strong.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Straight Adapters
    Image of Product. Female x Butt Weld. Front orientation. Pipe and Fittings. Premium Low-Pressure Stainless Steel Threaded Pipe Fittings, Straight Adapters, Female, Butt-Weld Fitting Connection, Threaded Fitting Connection.

    Female x Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Pipe
    Size
    304
    Stainless Steel
    316
    Stainless Steel
    (A)
    (B)
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Each
    NPT Female × Butt Weld
    1 1/2
    		1 1/2
    		150
    		300 psi @ 72° F150 psi @ 350° F90691A16400000090697A164000000
    2
    		2
    		150
    		300 psi @ 72° F150 psi @ 350° F90691A1650000090697A16500000
    3
    		3
    		150
    		300 psi @ 72° F150 psi @ 350° F90691A16600000090697A166000000
    4
    		4
    		150
    		300 psi @ 72° F150 psi @ 350° F90691A16700000090697A167000000
     

    High-Pressure Stainless Steel Socket-Connect Pipe Fittings

    Forged for excellent strength, these heavy duty socket-connect fittings stand up to high-pressure applications. They are easier to weld than butt-weld fittings because the fitting doesn’t need to align perfectly to the pipe. Slide pipe into the socket and weld for a strong, permanent connection.
    Straight Adapters
    Image of Product. Female × Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Stainless Steel Socket-Connect Pipe Fittings, Straight Adapters, Socket Connect Female × Butt Weld.

    Female × Butt

    Weld

    Socket Connect Female × Butt Weld—Socket connect x butt weld straight adapters are also known as half couplings.
    304/304L Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316/316L Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    Pipe
    Size
    Dash
    Size
    304/304L Stainless Steel
    316/316L Stainless Steel
    (A)
    (B)
    (A)
    (B)
    OD
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Socket Connect Female × Butt Weld
    1/8
    		1/8
    		02023/4"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K3110000003,000 psi @ 72° F1,900 psi @ 350° F45515K411000000
    1/4
    		1/4
    		04047/8"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K312000003,000 psi @ 72° F1,900 psi @ 350° F45515K41200000
    3/8
    		3/8
    		06061 1/16"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K313000003,000 psi @ 72° F1,900 psi @ 350° F45515K41300000
    1/2
    		1/2
    		08081 1/4"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K314000003,000 psi @ 72° F1,900 psi @ 350° F45515K41400000
    3/4
    		3/4
    		12121 1/2"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K315000003,000 psi @ 72° F1,900 psi @ 350° F45515K41500000
    1
    		1
    		16161 13/16"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K316000003,000 psi @ 72° F1,900 psi @ 350° F45515K41600000
    1 1/2
    		1 1/2
    		24242 1/2"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K31800000—————0
    2
    		2
    		32323"3000
    		2,500 psi @ 72° F1,900 psi @ 350° F44965K3190000003,000 psi @ 72° F1,900 psi @ 350° F45515K419000000
     

    High-Pressure Aluminum Threaded Pipe Fittings

    Also known as Pressure Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer. They are lightweight with good corrosion resistance.
    Straight Adapters
    Image of Product. Female x Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Female, Butt-Weld Fitting Connection.

    Female x Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female × Butt Weld
    1/4
    		1/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T71000000
    1/2
    		1/2
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7200000
    3/4
    		3/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7300000
    1
    		1
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7400000
     

    High-Pressure Titanium Threaded Pipe Fittings

    Titanium has similar strength to steel, but is approximately 40% lighter. It has better corrosion resistance than most stainless steel alloys and can handle corrosive substances, such as salt water and acids.
    Straight Adapters
    Image of Product. Female x Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Titanium Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Female, Butt-Weld Fitting Connection.

    Female x Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    (A)
    (B)
    Material
    Max. Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/4
    		1/4
    		Titanium3,000 psi @ 72° F1961K27000000
    3/8
    		3/8
    		Titanium3,000 psi @ 72° F1961K2800000
    1/2
    		1/2
    		Titanium3,000 psi @ 72° F1961K2900000
    3/4
    		3/4
    		Titanium3,000 psi @ 72° F1961K3100000
    1
    		1
    		Titanium3,000 psi @ 72° F1961K32000000
     
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