Valau polo palasitika, e pei o vaega taua o le pulea o paipa, e masani ona faʻaaogaina i vaega eseese e pei o togafitiga vai, inisinia kemisi, meaʻai ma vailaʻau. O le filifiliga sa'o o se fa'ata'ita'iga e mana'omia ai le iloiloina o mea 'ese'ese e pei o meafaitino, auala feso'ota'iga, fua fa'atatau, fua vevela, ma isi.palasitika polo valve, fesoasoani ia te oe e fai se filifiliga talafeagai.
Fa'avasegaga fa'avae ma tulaga fa'ata'atia mo valve polo palasitika
1. Auala fa'avasegaga autu
e mafai ona faavasegaina valve polo palasitika e tusa ai ma tulaga eseese:
(a) I le auala feso'ota'iga:
Flangealavai polo palasitika: talafeagai mo faiga paipa tele-diameter
Valau polo palasitika filo: e masani ona faʻaogaina mo paipa laiti-diameter
Socket palasitika polo valve: faigofie ona faʻapipiʻi vave
Fa'alua palasitika polo valve: faigofie ona fa'a'ese'ese ma tausia
(b) I le auala ave taavale:
Valve polo tusilima: taugofie ma aoga
Pneumatic ball valve: fa'atonuina otometi
Valve polo eletise: fetuunaiga saʻo
(c) I meafaitino:
UPVC polo valve: talafeagai mo vai vai
PP polo valve: Meaʻai ma falemaʻi falemaʻi
PVDF polo valve: Malosi auala corrosive
CPVC polo valve: Siosiomaga maualuga vevela
2. Tulaga fa'ale-atunuu ma fa'amatalaga
O tulaga autu mopalasitika polo valvei Saina e faapea:
GB / T 18742.2-2002: palasitika polo valve talafeagai mo DN15 ~ DN400, fuaina mamafa PN1.6 ~ PN16
GB / T 37842-2019 "Vapolo Polo Temoplastik": E fetaui mo va'a polo vevela mai le DN8 i le DN150 ma le PN0.6 i le PN2.5
3. Filifiliga o mea e faamau ai
EPDM ternary ethylene propylene pa'u: acid ma alkali tete'e, fua vevela -10 ℃ ~ + 60 ℃
FKM fluororubber: solvent tete'e, tulaga vevela -20 ℃ ~ + 95 ℃
PTFE polytetrafluoroethylene: tete'e i le pala malosi, va'aiga vevela -40 ℃ i + 140 ℃
Taimi meli: Iul-22-2025