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.
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Copper-Nickel Butt-Weld Pipe Fittings
Fittings weld flush against pipe, creating a strong connection that permits maximum flow. Fittings are also known as Pressure Class 200 fittings. They are copper-nickel, which has excellent resistance to stress cracking and better corrosion resistance than most stainless steel alloys. They are often used in highly-corrosive environments, such as salt water applications.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Natural Gas, Oil, Water, Salt Water
- Pressure Class: 200
- Military Specifications Met: NAVSEA 810-1385880
- Pipe: Use Class 200 copper-nickel

- For Use With: Air, Natural Gas, Oil, Water, Salt Water
- Pressure Class: 200
- Military Specifications Met: NAVSEA 810-1385880
- Pipe: Use Class 200 copper-nickel

- For Use With: Air, Natural Gas, Oil, Water, Salt Water
- Pressure Class: 200
- Military Specifications Met: NAVSEA 810-1385880
- Pipe: Use Class 200 copper-nickel
Copper-Nickel Threaded Pipe Fittings
Made of copper-nickel, these fittings have excellent resistance to stress cracking and have better corrosion resistance than most stainless steel alloys. They are often used in highly-corrosive environments, such as salt water applications.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Natural Gas, Oil, Water, Steam, Salt Water
- Specifications Met: ASME B16.3
- Pipe Nipples and Pipe: Use Schedule 40 copper-nickel