Makhalidwe 6 a mavavu a pulasitiki omwe simukuwadziwa

Gawo lotsegula ndi lotseka (gawo) limayendetsedwa ndi tsinde la valve ndipo limazungulira mozungulira tsinde la valve.Amagwiritsidwa ntchito kwambiri podula kapena kulumikiza sing'anga mu payipi, ndipo angagwiritsidwenso ntchito kusintha madzimadzi ndi kuwongolera.Vavu yamtunduwu nthawi zambiri iyenera kuyikidwa mopingasa mu payipi.

Makhalidwe apulasitikivalavu ya mpira yaying'ono:

(1) High ntchito kuthamanga: kuthamanga ntchito zipangizo zosiyanasiyana akhoza kufika 1.0Mpa firiji.

(2) Lonse ntchito kutentha: PVDF ntchito kutentha ndi -20 ℃ ~ + 120 ℃;RPP ntchito kutentha ndi -20 ℃ ~ + 95 ℃;UPVC ntchito kutentha ndi -50 ℃~+95 ℃.

(3) Kukana kwabwino: RPP, UPVC, PVDF, CPVC ali ndi mphamvu zamakina apamwamba komanso kukana.

(4) Kukana kwamadzimadzi otsika: khoma losalala lamkati lazinthu, kugundana kwazing'ono, komanso kuyendetsa bwino kwambiri.

(5) Mankhwala abwino kwambiri: Mankhwalawa sakhala ndi poizoni, alibe fungo, asidi ndi alkali samva, amalimbana ndi dzimbiri, ndipo ali ndi ntchito zosiyanasiyana.PPR imagwiritsidwa ntchito makamaka ngati chakudya, zakumwa, madzi apampopi,

Madzi oyera ndi mapaipi ena amadzimadzi ndi zida zokhala ndi zofunikira zaukhondo zitha kugwiritsidwanso ntchito ngati mapaipi amadzimadzi ndi zida zokhala ndi corrosiveness otsika;

RPP, UPVC, PVDF, CPVC amagwiritsidwa ntchito makamaka poyendetsa madzi (gasi) okhala ndi zidulo zamphamvu zowononga, ma alkali amphamvu ndi ma acid osakanikirana.

(6) Kuyika bwino komanso kuletsa mpweya wabwino: mankhwalawa ndi opepuka kulemera, omangika kapena owotcherera, zoyikapo mapaipi athunthu, zomanga zosavuta, zowongoletsa mpweya wabwino, komanso kutsika kwantchito.

Mbali zazikulu za valavu ya mpira wa pulasitiki ndi kapangidwe kake kakang'ono, kusindikiza kodalirika, kapangidwe kosavuta, ndi kukonza bwino.Malo osindikizira ndi ozungulira ozungulira nthawi zambiri amatsekedwa, osati zosavuta kuti awonongeke ndi sing'anga, komanso zosavuta kugwiritsa ntchito ndi kusamalira.Ndi yoyenera madzi, zosungunulira, ma asidi ndi gasi.Sing'anga yogwirira ntchito ndiyoyeneranso sing'anga yokhala ndi zovuta zogwirira ntchito, monga mpweya, hydrogen peroxide, methane ndi ethylene, ndi zina zambiri, zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana.Thupi la valve ya mpira likhoza kukhala lophatikizana kapena lophatikizidwa.