Ma valve a pulasitiki, monga zigawo zofunika zolamulira mu machitidwe a mapaipi, zimagwiritsidwa ntchito kwambiri m'madera osiyanasiyana monga chithandizo cha madzi, uinjiniya wamankhwala, chakudya ndi mankhwala. Kusankha koyenera kwa chitsanzo kumafuna kuganizira zinthu zosiyanasiyana monga zakuthupi, njira yolumikizirana, kuchuluka kwa kutentha, kutentha, ndi zina zotero.valavu mpira wa pulasitiki, kukuthandizani kusankha mwanzeru.
Magulu oyambira ndi miyezo ya mavavu a pulasitiki
1. Njira zazikulu zamagulu
Mavavu a pulasitiki amatha kugawidwa molingana ndi miyezo yosiyanasiyana:
(a) Njira yolumikizirana:
Flangevalavu ya mpira wa pulasitiki: oyenera machitidwe a mapaipi amtundu waukulu
Valavu ya mpira wa pulasitiki: yomwe imagwiritsidwa ntchito pamapaipi ang'onoang'ono
Socket pulasitiki mpira valve: zosavuta kukhazikitsa mwamsanga
Vavu ya pulasitiki yoyendetsedwa pawiri: yosavuta kusokoneza ndikuyikonza
(b) Poyendetsa galimoto:
Valavu yamanja ya mpira: yachuma komanso yothandiza
Valavu ya mpira wa pneumatic: zowongolera zokha
Valavu yamagetsi yamagetsi: kusintha kolondola
(c) Ndi zinthu:
Valve ya mpira wa UPVC: oyenera mankhwala madzi
PP mpira valve: Chakudya ndi mankhwala
Vavu ya mpira ya PVDF: Sing'anga yolimba yowononga
Vavu ya mpira wa CPVC: Malo otentha kwambiri
2. Miyezo ya dziko ndi ndondomeko
Mfundo zazikuluzikulu zavalavu mpira wa pulasitikiku China ndi izi:
GB/T 18742.2-2002: Mavavu a pulasitiki oyenera DN15~DN400, ovotera kuthamanga PN1.6~PN16
GB/T 37842-2019 "Thermoplastic Ball Valves": Oyenera ma valve a mpira a thermoplastic kuyambira DN8 mpaka DN150 ndi PN0.6 mpaka PN2.5
3. Kusankha zipangizo zosindikizira
EPDM ternary ethylene propylene rabala: asidi ndi alkali kugonjetsedwa, kutentha osiyanasiyana -10 ℃~+60 ℃
FKM fluororubber: zosungunulira zosagwira, kutentha osiyanasiyana -20 ℃~+95 ℃
PTFE polytetrafluoroethylene: kugonjetsedwa ndi dzimbiri amphamvu, kutentha osiyanasiyana -40 ℃ kuti +140 ℃
Nthawi yotumiza: Jul-22-2025