For copper fittings that are wrought, which standard applies?

For copper fittings that are wrought, which standard applies?

• A. ASME B16.22
• B. ASME B16.1
• C. ASTM F 437
• D. ASME B16.11

Answer: (A)

Wrought copper fittings intended for solder-joint connections are governed by ASME B16.22. This standard specifically covers copper and copper alloy fittings that are joined by sweat/solder, providing the required dimensions, tolerances, and ratings to match copper tubing sizes and ensure reliable, leak-free joints in sprinkler systems. ASME B16.1 covers cast-iron flanges and fittings, which are not copper. ASME B16.11 deals with socket-welding and threaded fittings (often for steel and some copper applications, but not the solder-joint copper category). ASTM F437 is another standard for copper-solder joint fittings, but in this context the recognized standard reference for wrought copper fittings is ASME B16.22.

Wrought copper fittings intended for solder-joint connections are governed by ASME B16.22. This standard specifically covers copper and copper alloy fittings that are joined by sweat/solder, providing the required dimensions, tolerances, and ratings to match copper tubing sizes and ensure reliable, leak-free joints in sprinkler systems.

ASME B16.1 covers cast-iron flanges and fittings, which are not copper. ASME B16.11 deals with socket-welding and threaded fittings (often for steel and some copper applications, but not the solder-joint copper category). ASTM F437 is another standard for copper-solder joint fittings, but in this context the recognized standard reference for wrought copper fittings is ASME B16.22.