Muaj ntau qhov laj thawj vim li cas lub valve sealing nto yuav puas, suav nrog:
1. Hnav thiab tsim kua muag: Sij hawm dhau mus, qhov qhib thiab kaw tas li ntawm lub valve yuav ua rau lub sealing nto los yog khawb.
2. Corrosion: Cov kua dej corrosive lossis gases tuaj yeem ua rau lub sealing nto corrode thiab puas.
3. Kev teeb tsa tsis raug: Yog tias lub valve tsis raug ntsia kom raug, nws yuav ua rau lub sealing nto tsis zoo los yog puas thaum lub sij hawm installation.
4. Kev quab yuam ntau dhau: Yog tias lub valve qhib lossis kaw nruj dhau, nws yuav ua rau lub sealing nto puas.
5. Cov kab mob sib kis: Yog tias muaj cov khoom txawv teb chaws lossis cov khib nyiab hauv cov kua lossis cov pa nkag mus rau hauv lub valve, nws yuav ua rau lub sealing nto ua khawb los yog pitted.
