Kev Lag Luam Cov Qauv thiab Kev Xaiv Cov Cai rau Cov Yeeb Nkab Fittings

Kev xaiv cov yeeb nkab fittings yuav tsum tau xav txog cov yam ntxwv ntawm kev tshaj tawm (xws li kub, siab, thiab corrosivity), ib puag ncig kev teeb tsa (xws li qhov chaw txwv thiab kev vibration zaus), thiab cov nqi them. Cov qauv lees paub thoob ntiaj teb suav nrog ASME (American Society of Mechanical Engineers), DIN (German Industrial Standard), thiab ISO (International Organization for Standardization), thaum cov qauv hauv tsev ua raws GB / T (National Standard) thiab HG / T (Tshuaj Kev Lag Luam Txuj Ci). Piv txwv li, cov yeeb nkab fittings rau kev xa cov dej haus yuav tsum ua raws li GB / T 17219 "Kev Ntsuam Xyuas Kev Nyab Xeeb Kev Nyab Xeeb rau Kev Sib Txuas Dej thiab Cov Khoom Siv Hluav Taws Xob thiab Cov Khoom Siv Tiv Thaiv" kom ntseeg tau tias lawv tsis yog- lom thiab tsis muaj mob; thaum siab -kub cov kav raj xa dej yuav tsum muaj cov ntaub ntawv hlau alloy nrog kub siab dua.