What is a solvent cement used for in pipefitting?

• A. To weld metal pipes
• B. To bond PVC and CPVC pipes and fittings
• C. To seal threaded connections
• D. To paint over pipes for aesthetics

Answer: (B)

A solvent cement is specifically formulated to bond PVC (Polyvinyl Chloride) and CPVC (Chlorinated Polyvinyl Chloride) pipes and fittings. This type of cement works by softening the plastic surfaces of the pipes and fittings upon application. As the solvent evaporates, the materials fuse together, creating a strong, permanent bond that is essential for ensuring watertight connections in plumbing and other piping systems.

This is especially crucial in applications where pipes must withstand pressure and maintain fluid integrity, as it eliminates potential leak points. The use of solvent cement is a standard practice in pipefitting for these materials, as it provides a reliable means of bonding without the need for additional hardware or complex joining methods. Understanding this function helps pipefitters effectively choose the right materials and tools for their projects, ensuring compliance with industry standards and safety protocols.