Which standard would you consult for CPVC socket-type fittings?

Which standard would you consult for CPVC socket-type fittings?

• A. ASTM F 437
• B. ASTM F 438
• C. ASTM F 439
• D. ASME B16.18

Answer: (B)

ASTM F438 is the standard specification for CPVC socket-type fittings used with CPVC piping systems. It defines the requirements that ensure CPVC socket fittings will mate properly with CPVC pipe and form reliable solvent-weld joints, including dimensional tolerances, material properties, and performance criteria such as pressure ratings and leakage testing. This makes it the appropriate reference when you’re dealing with socket-type CPVC fittings, since it specifically addresses that fitting configuration and its compatibility with CPVC pipe and adhesive systems. The other options relate to different materials or fitting types (for example, metal or non-socket configurations), so they don’t cover CPVC socket-type fittings in the same way.

ASTM F438 is the standard specification for CPVC socket-type fittings used with CPVC piping systems. It defines the requirements that ensure CPVC socket fittings will mate properly with CPVC pipe and form reliable solvent-weld joints, including dimensional tolerances, material properties, and performance criteria such as pressure ratings and leakage testing. This makes it the appropriate reference when you’re dealing with socket-type CPVC fittings, since it specifically addresses that fitting configuration and its compatibility with CPVC pipe and adhesive systems. The other options relate to different materials or fitting types (for example, metal or non-socket configurations), so they don’t cover CPVC socket-type fittings in the same way.