What term completes the phrase: comingling plastic pipe with adapters requires approved ______ fittings.

What term completes the phrase: comingling plastic pipe with adapters requires approved ______ fittings.

• A. Transition
• B. Compression
• C. Elbow
• D. Coupling

Answer: (A)

When you need to connect plastic pipe to adapters or to a different material or size, you use transition fittings. They are specifically designed and approved to bridge dissimilar materials or sizes, ensuring a proper seal and compatibility with the system. An elbow changes direction, a coupling typically joins two pieces of the same material and size, and a compression fitting handles a specific joining method but isn’t inherently a transition between different materials. So the appropriate term is transition fittings.

When you need to connect plastic pipe to adapters or to a different material or size, you use transition fittings. They are specifically designed and approved to bridge dissimilar materials or sizes, ensuring a proper seal and compatibility with the system. An elbow changes direction, a coupling typically joins two pieces of the same material and size, and a compression fitting handles a specific joining method but isn’t inherently a transition between different materials. So the appropriate term is transition fittings.