Sweat Tube Fittings | McMaster-Carr

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Fitting Connection

Copper Tube Size

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Material

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System of Measurement

Tube OD

Copper Tube Type

Pipe Size

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Elbow Type

Short with Mounting Tab

Tube Material

For Use With

Thread Type

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DFARS Specialty Metals

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678 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Barbed Tube Fittings for Drinking Water

Connect these fittings to tubing with a ring and a crimping tool (both sold separately). Safe to use with drinking water, these fittings meet the strict standards of NSF/ANSI 61.

Solder-Connect Fittings for Copper Tubing

Solder these fittings to tubing for a permanent, leak-tight connection. They are also known as sweat fittings.

Cleaned and Bagged Solder-Connect
Fittings for Copper Tubing

When cleanliness is crucial to your application, choose these fittings that are individually cleaned and bagged to prevent contamination.

45° Flared Fittings for Copper and Brass Tubing

No sleeve is required to assemble these fittings, which makes for a faster, more convenient installation compared to 37° flared fittings. They are also known as refrigeration and SAE fittings.

Flow-Control Valves

Check Valves with Solder-Connect Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection.

On/Off Valves with Solder-Connect Fittings

Solder these valves to metal tubing for a permanent, leak-tight connection. Use with water, oil, air, inert gas, and steam.

Easy-Maintenance On/Off Valves
with Solder-Connect Fittings

Service these valves without cutting soldered connections. The three-piece bolted body can be disassembled inline for easy access to internal components. Use with water, oil, inert gas, and steam.

On/Off Valves with Solder-Connect
Fittings for Drinking Water

Solder these valves to metal tubing for a permanent, leak-tight connection. They meet NSF/ANSI 61 for use with drinking water.

Gradual On/Off Valves with Solder-Connect Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection.

Motor-Driven On/Off Valves
with Solder-Connect Fittings

Slide copper pipe into the solder-connect fittings on these valves and weld for a strong, permanent connection.