DBB double ball valve ke valve e koalang habeli, ea khefu e habeli le e lokollang. Ha lipheletso tse peli tsa valve li le tlas'a khatello ka nako e le 'ngoe, sehare se ka har'a sekoti se ka ntšoa ho tswa ho valve blowdown kapa vent valve,' me sebaka se ka holimo le se tlaase sa valve se ke ke sa tsoela pele ho kena sekoting sa valve. hoo e ka bang habedi thibela. Ha kamore e bohareng e le khatellong e phahameng, setulo sa valve se ka lokolla khatello ka bo eona, ke hore, ho lokolla. Li sebetsa ho parafine ea sefofane, oli e bobebe, khase ea tlhaho, khase e nang le metsi, khase ea lipeipi, mochini oa lik'hemik'hale, joalo-joalo.
Likarolo tsa mantlha tsa kaho ea li-valve tse peli tsa bolo ea JLPV DBB ke tse latelang:
1. 1PC, 3PC le kaho eohle ea 'mele e cheselitsoeng.
2. Li ka etsoa e le bolo e phaphametseng le bolo e tsitsitseng.
3. Moralo o bulehileng kapa o felletseng o koaletsoeng habeli oa block blowdown (DBB).
4. Moralo oa li-valve tse 'ne oa tiiso o tiisa tšebetso ea ho tiisa 'mele oa li-valve, ka ho lutla ha zero.
5. Letlapa le thibelang ho fofa, tsamaiso ea ente ea tšohanyetso ea setulo le stem, mokhoa o sireletsehileng oa mollo le o khahlanong le static, 'me setopo sa valve se fanoa ka sekoti se bohareng ho ntša sesebelisoa.
Mefuta e fapaneng ea moralo oa li-valve tsa li-valve tse peli tsa JLPV DBB ke ka tsela e latelang:
1. Boholo: 2 "ho isa ho 24" DN50 ho DN600
2. Khatello: Sehlopha sa 150lb ho isa ho 2500lb PN10-PN420
3. Boitsebiso: tšepe ea carbon, tšepe e sa hloekang le lisebelisoa tse ling tse tloaelehileng tsa tšepe.
NACE MR 0175 thepa ea tšepe e khahlanong le sebabole le e khahlanong le kutu.
4. Khokahano e fella: ASME B 16.5 sefahlehong se phahamisitsoeng(RF), sefahleho se bataletseng(FF) le Ring Type Joint (RTJ）
ASME B 16.25 pheletsong e sekalaneng.
5. Litekanyo tsa sefahleho le sefahleho: li lumellana le ASME B 16.10.
6. Mocheso: -29℃ ho ea ho 425 ℃
Li-valve tsa JLPV li ka ba le li-gear operator, li-pneumatic actuators, li-hydraulic actuators, li-actuator tsa motlakase, lisebelisoa tsa ho notlela, lithupa tse atolositsoeng le tse ling tse ngata li fumaneha ho finyella litlhoko tsa bareki.
