ASME B16.11 yog tus qauv muaj cov kev ntaus nqi, qhov ntev, kev ua siab ntev, cim thiab cov ntaub ntawv xav tau rau fittings, ob lub qhov muag welding thiab xov. Threaded fittings muaj nyob rau hauv kev ntsuas siab chav kawm chav kawm chav kawm tiav 2000, 3000, thiab 6000; Qhov (socket) vuam fittings muaj nyob hauv kev ntsuas siab hauv chav kawm 3000, 6000, thiab 9000.