What type of joint is commonly used in PVC piping?

Solvent weld joints are commonly used in PVC piping due to their strong bond and watertight seal. This type of joint involves applying a solvent cement, which softens the surface of the PVC, allowing the pieces to fuse together as the cement cures. This creates a continuous connection that is highly effective in preventing leaks. The simplicity of installation and the durability of the joint make it a preferred choice for various plumbing applications.

In contrast, screw joints involve mechanical fastening and are not typically employed with PVC due to the material's characteristics. Compression fittings are more suitable for flexible hoses or in situations where easy disassembly is required. Flanged joints, while useful in larger systems or areas needing easy access, are rarely used with PVC piping, as they require additional hardware and setup not needed with solvent welding.