(1) Hom flange tuaj yeem muab faib ua: tiaj vuam flange, bimetal vuam, taub qab vuam flange thiab threaded flange raws li daim ntawv txuas. Bi-hlau welded steel yeeb nkab yog ib hom tshiab ntawm cov khoom siv yeeb nkab. Kev xaiv ntawm flanges yuav tsum ua raws li cov yeeb nkab flanges (GB9112 ~ 9131), steel taub qab welded seamless yeeb nkab fittings (GB / T12459), thiab cov yeeb nkab flanges yog them nrog PTFE. Gasket (GB / T13404) tus qauv.
(2) Yog tias qhov kub-dip galvanized steel yeeb nkab yog flanged, threaded flanges yuav tsum tau siv. Thaum lub kaw lus kaw lus siv cov phab ntsa sab hauv uas tsis yog-corrosion pipeline, nws tuaj yeem txuas nrog vuam. Pipeline welding yuav tsum ua raws li "Code for Construction and Acceptance of Field Equipment and Industrial Pipeline Welding Engineering".
