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    72 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.

    Performance

    Threading

    High-Pressure Iron and Steel Threaded Pipe Fittings

    Connect pipe in high-pressure systems. These iron or steel fittings are best for 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.
    Union Straight Connectors
    Image of System. Exploded View. Front orientation. Exploded view. Pipe and Fittings. High-Pressure Iron and Steel Threaded Pipe Fittings, Union Straight Connectors, Female, Threaded Fitting Connection, Hex Body.

    Exploded View

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    Zinc-Phosphate-Coated Steel—A phosphate coating offers some corrosion resistance, but these fittings aren't intended for corrosive environments.
    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/8
    		023000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K291000000
    1/4
    		043000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9100000
    3/8
    		063000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9200000
    1/2
    		083000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9300000
    3/4
    		123000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9400000
    1
    		163000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9500000
    1 1/4
    		203000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9600000
    1 1/2
    		243000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9700000
    2
    		323000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K9800000
    2 1/2
    		403000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K292000000
    3
    		483000
    		HexZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K293000000
     
    Union Straight Connectors with Lugs
    Image of System. Exploded View. Front orientation. Exploded view. Pipe and Fittings. High-Pressure Iron and Steel Threaded Pipe Fittings, Union Straight Connectors with Lugs, Female, Threaded Fitting Connection.

    Exploded View

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    Zinc-Phosphate-Coated Steel—A phosphate coating offers some corrosion resistance, but these fittings aren't intended for corrosive environments.
    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Body Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/2
    		083000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K112000000
    3/4
    		123000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K11300000
    1
    		163000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K114000000
    1 1/4
    		203000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K115000000
    1 1/2
    		243000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K116000000
    2
    		323000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K117000000
    2 1/2
    		403000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K312000000
    3
    		483000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K313000000
    4
    		643000
    		Hex with LugsZinc-Phosphate-Coated Steel3,000 psi @ 72° F300 psi @ 360° F4513K314000000
     

    High-Pressure Stainless Steel Threaded Pipe Fittings

    These fittings handle high-pressure flow up to 3,000 psi. Made of stainless steel, they have excellent corrosion resistance.
    Union Straight Connectors
    Image of Product. Female. Front orientation. Pipe and Fittings. High-Pressure Stainless Steel Threaded Pipe Fittings, Union Straight Connectors, Female, Threaded Fitting Connection, Hex Body.

    Female

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    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.
    304 Stainless Steel
    316 Stainless Steel
    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Body
    Shape
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/8
    		023000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K5910000002,000 psi @ 350° F4443K6910000000
    1/4
    		043000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K592000002,000 psi @ 350° F4443K692000000
    3/8
    		063000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K593000002,000 psi @ 350° F4443K693000000
    1/2
    		083000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K594000002,000 psi @ 350° F4443K694000000
    3/4
    		123000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K5950000002,000 psi @ 350° F4443K695000000
    1
    		163000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K5960000002,000 psi @ 350° F4443K696000000
    1 1/4
    		203000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K5970000002,000 psi @ 350° F4443K697000000
    1 1/2
    		243000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K5980000002,000 psi @ 350° F4443K698000000
    2
    		323000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F45525K5990000002,000 psi @ 350° F4443K699000000
     

    High-Pressure Iron and Steel Socket-Connect Pipe Fittings

    Slide pipe into the socket and weld for a strong, permanent connection in high-pressure lines. Socket-connect fittings don’t require perfect alignment, so they’re easier to join than butt-weld fittings. Made of steel, these perform best in noncorrosive environments.
    Union Straight Connectors
    Image of System. Socket Connect (Exploded View). Front orientation. Exploded view. Pipe and Fittings. High-Pressure Iron and Steel Socket-Connect Pipe Fittings, Union Straight Connectors, Socket Connect, Hex Body.

    Socket Connect (Exploded View)

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    Pipe
    Size
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    Each
    Socket Connect
    1/8
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K251000000
    1/4
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25200000
    3/8
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25300000
    1/2
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25400000
    3/4
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25500000
    1
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25600000
    1 1/4
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25700000
    1 1/2
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25800000
    2
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K25900000
    2 1/2
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K261000000
    3
    		3000
    		HexSteel
    		3,000 psi @ 72° FNot Rated45005K262000000
     

    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.
    Union Straight Connectors
    Image of System. Exploded View. Front orientation. Exploded view. Pipe and Fittings. High-Pressure Galvanized Iron and Steel Threaded Pipe Fittings, Union Straight Connectors, Female, Threaded Fitting Connection, Hex Body.

    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
    1/4
    		043000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K172000000
    3/8
    		063000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17300000
    1/2
    		083000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17400000
    3/4
    		123000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17500000
    1
    		163000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17600000
    1 1/4
    		203000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17700000
    1 1/2
    		243000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17800000
    2
    		323000
    		HexGalvanized Steel3,000 psi @ 72° F300 psi @ 360° F7739K17900000
     

    High-Pressure Stainless Steel Socket-Connect Pipe Fittings

    Forged for excellent strength, these heavy duty fittings stand up to high-pressure applications. Slide pipe into the socket and weld for a permanent connection. Socket-connect fittings don’t require perfect alignment, so they’re easier to join than butt-weld fittings. Fittings are made of stainless steel for excellent corrosion resistance.
    Union Straight Connectors
    Image of System. Female. Front orientation. Exploded view. Pipe and Fittings. High-Pressure Stainless Steel Socket-Connect Pipe Fittings, Union Straight Connectors, Socket Connect, Hex Body.

    Female

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    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.
    304/304L
    Stainless Steel
    316/316L
    Stainless Steel
    Pipe
    Size
    Dash
    Size
    Pressure
    Class
    Body
    Shape
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Each
    Socket Connect
    1/4
    		043000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47200000045515K2420000000
    3/8
    		063000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47300000045515K243000000
    1/2
    		083000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47400000045515K244000000
    3/4
    		123000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47500000045515K245000000
    1
    		163000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47600000045515K246000000
    1 1/2
    		243000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47800000045515K248000000
    2
    		323000
    		Hex2,900 psi @ 72° F1,900 psi @ 350° F44965K47900000045515K249000000
     

    High-Pressure Aluminum Threaded Pipe Fittings

    Our strongest aluminum threaded fittings handle pressures up to 3,000 psi. They’re made of aluminum, which is lightweight and resists rust in wet environments. Also known as Pressure Class 3000 fittings.
    Union Straight Connectors
    Image of System. Exploded View. Front orientation. Exploded view. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Union Straight Connectors, Female, Threaded Fitting Connection, Hex Body.

    Exploded View

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    Pipe
    Size
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female
    1
    		3000
    		Hex6061 Aluminum1,500 psi @ 72° FFed. Spec. QQ-A-200/83867T5410000000
     
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