Kumene valavu yoyendera ndi yoyenera.

Cholinga chogwiritsa ntchito valavu yowunikira ndikuletsa kusuntha kwapakati, ndipo valavu yowunikira nthawi zambiri imayikidwa potuluka pampu. Kuonjezera apo, valavu yowunikira iyeneranso kuikidwa pamtunda wa compressor. Mwachidule, pofuna kupewa kusuntha kwapakati, valve yowunikira iyenera kuikidwa pazida, chipangizo kapena payipi.

Nthawi zambiri, mavavu okwera okwera amagwiritsidwa ntchito pamapaipi opingasa okhala ndi mainchesi 50 mm. Vavu yoyang'ana molunjika imatha kuyikidwa pamapaipi opingasa komanso oyima. Vavu yapansi nthawi zambiri imayikidwa papaipi yoyima ya polowera, ndipo sing'angayo imayenda kuchokera pansi kupita pamwamba.

Swing check valve ikhoza kupangidwa kukhala yothamanga kwambiri yogwira ntchito, PN ikhoza kufika ku 42MPa, ndipo DN ikhoza kukhala yaikulu kwambiri, yochuluka imatha kufika kuposa 2000mm. Malingana ndi zipangizo zosiyanasiyana za chipolopolo ndi chisindikizo, chitha kugwiritsidwa ntchito pamtundu uliwonse wogwira ntchito komanso kutentha kulikonse. Sing'anga ndi madzi, nthunzi, gasi, sing'anga zikuwononga, mafuta, chakudya, mankhwala, etc. Kutentha ntchito sing'anga ndi pakati -196 ~ 800 ℃.

Kuyika kwa valavu ya swing check sikochepa, nthawi zambiri kumayikidwa paipi yopingasa, koma imatha kuikidwa paipi yowongoka kapena payipi yolowera.

Nthawi yoyenera ya valavu ya butterfly ndi yotsika kwambiri komanso mainchesi akulu, ndipo nthawi yoyikapo ndi yochepa. Chifukwa kuthamanga kwa ntchito ya valve yoyang'ana gulugufe sikungakhale kwakukulu, koma m'mimba mwake mwadzina ukhoza kukhala waukulu kwambiri, womwe ukhoza kufika kuposa 2000mm, koma kuthamanga kwadzina kuli pansi pa 6.4MPa. Valavu yoyang'ana gulugufe imatha kupangidwa kukhala mtundu wawafer, womwe nthawi zambiri umayikidwa pakati pa ma flanges awiri a payipi ngati mawonekedwe olumikizirana ndi nthiti.

Kuyika kwa valavu ya butterfly checker sikokwanira, ikhoza kuikidwa paipi yopingasa, payipi yowongoka kapena payipi yolowera.

Vavu yoyang'anira diaphragm ndiyoyenera mapaipi omwe amakonda nyundo yamadzi. The diaphragm imatha kuthetsa nyundo yamadzi yobwera chifukwa cha kusintha kwa sing'angayo. Popeza kutentha kogwira ntchito ndi kupanikizika kwa ma valve a diaphragm check valves kumachepetsedwa ndi zinthu za diaphragm, nthawi zambiri amagwiritsidwa ntchito pamapaipi otsika kwambiri komanso otentha, makamaka pamapaipi amadzi apampopi. Nthawi zambiri, kutentha kwa sing'anga kumakhala pakati pa -20 ~ 120 ℃, ndipo kuthamanga kwa ntchito kumakhala kochepa kuposa 1.6MPa, koma valavu yoyang'ana diaphragm imatha kufika m'mimba mwake, ndipo DN yochuluka ikhoza kukhala yoposa 2000mm.

Valavu yowunika ya Diaphragm yakhala ikugwiritsidwa ntchito kwambiri m'zaka zaposachedwa chifukwa chakuchita bwino kwamadzi, mawonekedwe osavuta komanso mtengo wotsika wopanga.

Valve yoyang'ana mpira imakhala ndi ntchito yabwino yosindikiza, ntchito yodalirika komanso kukana nyundo yamadzi chifukwa chisindikizo ndi gawo lopangidwa ndi mphira; ndipo chifukwa chisindikizocho chikhoza kukhala mpira umodzi kapena mipira ingapo, imatha kupangidwa kukhala lalikulu lalikulu. Komabe, chisindikizo chake ndi gawo lopanda kanthu lophimbidwa ndi mphira, lomwe siloyenera mapaipi othamanga kwambiri, koma oyenera mapaipi apakati komanso otsika.

Popeza zinthu zipolopolo za mpira cheke valavu akhoza kukhala zitsulo zosapanga dzimbiri, ndipo dzenje gawo la chisindikizo akhoza yokutidwa ndi PTFE engineering pulasitiki, angagwiritsidwenso ntchito mapaipi ndi wamba zikuwononga TV.

Kutentha kogwira ntchito kwa mtundu uwu wa valve cheke kuli pakati pa -101 ~ 150 ℃, kuthamanga kwadzina ndi ≤4.0MPa, ndipo m'mimba mwake mwadzina ndi pakati pa 200 ~ 1200mm.