1, Mumamiriro ekusaita maitiro epombi welding, inofanirwa kuwedzera kureba kwakachengetwa, epoxy poda yekupedzisira ye polyethylene layer inogona kudzivirirwa nekuda kwesimbi pombi inotutira kwenguva yakareba, pombi simbi ngura inokonzerwa neyakaomarara 3. PE anticorrosive inova yakakombama.

2, Anticorrosive pombi kwenguva yakareba, yakaiswa mumhepo yakashama ichavharwa mupombi, kudzivirira kukukurwa kwemvura, zvichikonzera kupera kwepombi yekuora.

3, Kana iyo pombi yekuvaka kutenderera kwakareba, inogona besmear mabhurashi anokwenenzverwa anti-ngura pendi chubhu isina simbi, kudzivirira ngura pombi inokonzerwa nekuora panguva yekuchengetera 3 PE coating inove yakakombama.

Kupfuura 4, kwakasimba kutonga kwechubhu yekupedzisira yakachengetwa mu weld kugaya nemhando yepamusoro.Polyethylene mu weld slope outlets uye yakasara yepombi muviri, ita epoxy hupfu reserved kureba > 20 mm, kuitira kudzivirira welds epoxy upfu pazasi ngura kunokonzerwa nekutanga 3 PE anticorrosion layer inova warped edge.