Valve phun tampi an um, asinain a hrampi riantuannak cu aa khat, cucu, a tlangpi in a luangmi kha pehtlaih asiloah phih kha a si. Cucaah, valve kharnak kong buainak cu a lang ngai.
Valve nih a luannak um loin a tlawmbik a luannak kha a phih khawh nakhnga, valve kharnak cu a rawk lo ti kha zohfel a herh. Valve a luannak a ruang tampi a um, cu hna cu a ttha lomi dirhmun suaisam, a ttha lomi kharnak pehtlaihnak cunglei, a tthawng lomi hrennak thilri, valve pum le bonnet karlak ah aa tlak lomi, tbk. Hi buainak vialte nih hin valve kharnak ttha lo a chuahter khawh. A ṭha, cucaah a luangmi buainak a chuahter. Cucaah, valve kharnak thiamnak cu valve riantuan ning le tthatnak he aa pehtlaimi a biapi mi thiamnak a si, cun ningcang tein le thukpi in hlathlainak a herh.
Valve caah hman tawnmi kharnak thilri hna cu a tanglei phun hna hi an si bik:
1. NBR
A ttha tukmi chiti doh khawhnak, a sangmi hruk khawhnak, lumnak doh khawhnak ttha, fek tein aa hngat. A chiatnak hna cu lumnak tlawmte tuar khawhnak a ttha lo, ozone doh khawhnak ttha lo, electric thilri ttha lo, le tlawmpal a niam deuhmi tthawnnak a si.
2. EPDM
EPDM a biapi bikmi cu a tthawngmi oxidation doh khawhnak, ozone doh khawhnak le rawhnak doh khawhnak a si. EPDM cu polyolefin chungkhar ah aa tel caah, a ttha tukmi vulcanization sining a ngei.
3. PTFE
PTFE cu a fekmi chemical doh khawhnak a ngei, chiti le cawhnuk tam deuh (ketones le esters ti lo) doh khawhnak a ngei, nikhua doh khawhnak tha le ozone doh khawhnak a ngei, asinain khuasik doh khawhnak a ttha lo.
4. Thir
Bialehnak: Cast iron cu ti, gas le chiti media caah hman a si i a lum ning cu≤100°C le a min in hneknak≤1.6mpa.
5. Nickel-based alloy
Bialehnak: Nickel-based alloys cu -70~150 lumnak a ngeimi pipeline caah hman a si°C le engineering pressure PN≤20.5mpa.
6. Dar cawhmi
Dar cawhmi cu a rawk kho lo i ti le lumternak pipe caah aa tlak≤200°Cle min in hneknak PN≤1.6mpa.
Post caan: Dec-02-2022
