Kev kaw dej valve feem ntau yog siv los kaw cov dej valve thiab tiv thaiv kev nyab xeeb ntawm lub valve.Txawm hais tias cov khoom siv kaw lub valve yog siv los yog tsis muaj feem xyuam rau qhov tseem ceeb ntawm kev ua haujlwm nyab xeeb;Qee lub valve feem ntau qhib, qee lub valve feem ntau raug kaw, uas yuav tsum tau xav txog kev nyab xeeb, txhawm rau kom tsis txhob muaj kev ua haujlwm tsis zoo, yog li tsim cov dej valve kaw, lub hom phiaj yog los xyuas kom meej tias kev siv cov khoom siv valve raug kaw kiag li, cov khoom siv. yog khaws cia rau hauv ib qho chaw nyab xeeb;Kev kaw dej ntawm lub valve tuaj yeem tiv thaiv kev siv lub cuab yeej tsis raug, ua rau raug mob lossis tuag, tab sis kuj tseem ceeb rau kev ceeb toom.

Daim ntawv thov dej valve lockout ntaus ntawv

• 1. Pipeline li qub siv hauv roj av, tshuaj lom neeg thiab kev lag luam kav dej;
• 2. Pipeline li qub rau kev txuag dej, hluav taws xob hluav taws xob, hauv nroog thiab lwm cov kav dej hauv tsoomfwv;
• 3. Pipeline li qub tsim nyog rau cov kav dej loj xws li lub tsev muag tshuaj, papermaking, steel thiab dej haus;
• 4. Cov yeeb nkab valve haum rau cov kav dej ntawm kev tsim kho kev lag luam, cheeb tsam kev lag luam, tsev neeg nyob, thiab lwm yam .;
• 5. Muaj feem xyuam rau tag nrho lwm cov kav dej nrog li qub rau kev tiv thaiv kev nyab xeeb.