Bakeng sa li-valve tsa ho emisa tse bulehileng kapa tse koetsoeng ka botlalo, ho sebelisoa li-valve tsa heke.Li sebelisoa hangata bakeng sa metsi, mouoane, lihlahisoa tsa oli, joalo-joalo ho e-na le throttling.Li sebelisoa haholo indastering ea petroleum, lik'hemik'hale, lijo, meriana, masela, matla, marine, metallurgy le tsamaiso ea matla, har'a tse ling.
Li-valve tsa heke li na le cheche e tsamaeang e tsamaeang ho latela motsamao oa stem nut.The wedge e tsamaea perpendicular ho tsela ea phallo.
Hangata li-valve tsa heke li na le tahlehelo e fokolang ea khatello ha li butsoe ka ho feletseng 'me li fana ka ho koala ka thata ha li koetsoe ka ho feletseng ka lebaka la mohaho oa tsona oa ho tiisa habeli.
Likarolo tsa mantlha tsa kaho ea valve ea heke ea JLPV ke tse latelang:
1.Ho na le meralo e tloaelehileng ea sekotoana se le seng se tenyetsehang, meralo e tiileng ea wedge, le meralo e habeli.
Li-wedges tse tloaelehileng tsa karolo e le 'ngoe li khona ho tsosolosa katoloso e nyenyane ea elasto-thermal le deformation, ho etsa bonnete ba hore kamehla, ho kopana ho loketseng le litulo le ho boloka setulo se thata ka tlas'a likhatello le mocheso o fapaneng.
2.Setulo se nang le 'mele o kopantsoeng kapa setulo se kentsoeng ka thepa e sa tšoaneng
Liprothokholo tsa WPS li 'nile tsa lateloa ka thata bakeng sa ho koahela li-welded.Lifahleho tsa selikalikoe li entsoe ka mochini, li hloekisoa ka hloko, 'me li hlahlobjoa pele li ea kopanong ka mor'a ho tjheseletsa le ho alafa mocheso ofe kapa ofe o hlokahalang.
3.T-T-head stem e kopantsoeng le top bonnet seal hammoho le ho paka tiiso
Sebopeho sa tlhaho sa T-hlooho se sebetsa e le sehokelo sa heke.Ka ho tiea ho nepahetseng sebakeng sa ho paka le bophelo bo bolelele ka lebaka la litekanyo tse nepahetseng le liphetho tse nepahetseng, ho na le mesi e fokolang ea baphaphathehi.
Mefuta e fapaneng ea moralo oa li-valve tsa heke ea JLPV ke ka tsela e latelang:
1.Size: 2 "ho 48" DN50 ho DN1200
2.Khatello: Sehlopha sa 150lb ho isa ho 2500lb PN10-PN420
3.Material: Tšepe ea carbon le tšepe e sa hloekang le lisebelisoa tse ling tse khethehileng.
NACE MR 0175 thepa ea tšepe e khahlanong le sebabole le e khahlanong le kutu
4.Khokahano e qetella: ASME B 16.5 sefahlehong se phahamisitsoeng (RF), sefahleho se bataletseng (FF) le Ring Type Joint (RTJ)
ASME B 16.25 ka butt welding lipheletsong.
5.Litekanyo tsa sefahleho le sefahleho: lumellana le ASME B 16.10.
6.Mocheso: -29℃ ho isa ho 425 ℃
Li-valve tsa JLPV li ka etsoa ka mefuta eohle ea lisebelisoa ho fihlela litlhoko tse fapaneng ho tsoa ho bareki, haholoholo maemong a NACE.
Li-valve tsa JLPV li ka ba le lisebelisoa tsa gear, li-actuator tsa pneumatic, li-actuator tsa Hydraulic, li-actuator tsa Motlakase, li-bypass, lisebelisoa tsa ho notlela, li-chainwheels, li-stems tse atolositsoeng le tse ling tse ngata li fumaneha ho finyella litlhoko tsa bareki.
