Black Iron Pipe Adapters | McMaster-Carr

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125 psi @ 72° F

150 psi @ 72° F

175 psi @ 72° F

300 psi @ 72° F

600 psi @ 72° F

1,000 psi @ 72° F

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1,500 psi @ 72° F

2,000 psi @ 72° F

3,000 psi @ 72° F

3,700 psi @ 72° F

6,000 psi @ 72° F

3,000 psi @ 100° F

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Pipe and Fittings

Iron and Steel Threaded Pipe and Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

Medium-Pressure Iron and Steel Threaded Pipe Fittings

Medium-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 2,000 psi

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe

Pair with low-pressure fittings; also known as Schedule 40

High-Pressure Iron and Steel Threaded Pipe Fittings

High-Pressure Iron and Steel Threaded Pipe Fittings

Strong enough for pressures up to 6,000 psi

Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

Low-Pressure Iron and Steel Threaded Pipe Fittings with Sealant

Male threads have sealant applied for extra leak protection in low-pressure lines

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

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

Connect threaded pipe in fire water mains and sprinkler systems

High-Pressure Iron and Steel Threaded Pipe Flanges

High-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in lines up to 1,400 psi; also known as Class 300 or Class 600 flanges

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe with Sealant

Standard-Wall Iron and Steel Threaded Pipe Nipples and Pipe with Sealant

Threads have sealant applied for extra leak protection in low-pressure lines; known as Schedule 40

Extreme-Pressure Iron and Steel Threaded Pipe Flanges

Extreme-Pressure Iron and Steel Threaded Pipe Flanges

Create an access point in extreme-pressure lines; also known as Class 1500 flanges

Iron and Steel Unthreaded Pipe and Fittings

FM-Approved Standard-Wall Iron and Steel Grooved-End Pipe Nipples and Pipe

FM-Approved Standard-Wall Iron and Steel Grooved-End Pipe Nipples and Pipe

Clamp to fittings for quick access to fire water mains and sprinkler systems

Standard-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Standard-Wall Iron and Steel Unthreaded Pipe Nipples and Pipe

Pair with low-pressure fittings; also known as Schedule 40

High-Pressure Iron and Steel Unthreaded Pipe Flanges

High-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in lines up to 1,400 psi; also known as Class 300 or Class 600 flanges

Other Products

Pipe Traps

Create a seal that prevents the backflow of gas

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)