Chinangwa chekushandisa cheki chevhavha ndechekudzivirira kutenderera kutenderera kwepakati, uye cheki vharafu inowanzoiswa painobuda pombi. Mukuwedzera, cheki valve inofanirawo kuiswa panzvimbo yekubuda kwe compressor. Muchidimbu, kuitira kudzivirira kutenderera kwepakati, cheki yevhavha inofanira kuiswa pamidziyo, chigadzirwa kana pombi.
Kazhinji, vertical lift cheki mavharuvhu anoshandiswa pamapaipi akachinjika ane dhayamita ye50mm. Yakatwasuka-kuburikidza nekusimudza cheki vharafu inogona kuiswa pamapaipi ese akachinjika uye akatwasuka. Ivhavha yepasi inowanzoiswa chete papombi yakatwasuka yepombi inopinza, uye yepakati inoyerera kubva pasi ichienda kumusoro.
Swing cheki vharafu inogona kuitwa yakanyanya kushanda nesimba, PN inogona kusvika 42MPa, uye DN inogonawo kuitwa yakakura kwazvo, iyo yakakwira inogona kusvika kupfuura 2000mm. Zvinoenderana neyakasiyana zvinhu zvegoko uye chisimbiso, inogona kuiswa kune chero inoshanda svikiro uye chero yekushanda tembiricha renji. Iyo yepakati imvura, chiutsi, gasi, corrosive medium, mafuta, chikafu, mushonga, etc. Kushanda tembiricha yepakati iri pakati -196 ~ 800 ℃.
Nzvimbo yekuisa ye swing check valve haina kuganhurirwa, inowanzoiswa pahorizontal pipeline, asi inogonawo kuiswa pa vertical pipeline kana pombi yakarerekera.
Chiitiko chinoshanda chevhavhavhavhavha yekutarisa yakaderera uye yakakura dhayamita, uye chiitiko chekuisa chishoma. Nokuti kushandiswa kwekushanda kwevhavhavhavha yevhavhavha haigoni kuva yakakwirira kwazvo, asi dhayamita yezita inogona kuva yakakura kwazvo, iyo inogona kusvika kupfuura 2000mm, asi iyo inonzi inonzi pressure iri pasi pe6.4MPa. Iyo butterfly cheki vharafu inogona kugadzirwa kuita wafer mhando, iyo inowanzoiswa pakati pemaflange maviri epombi nenzira yekubatanidza wafer.
Nzvimbo yekuisa butterfly cheki vharafu haina kuganhurirwa, inogona kuiswa pahorizontal pipeline, vertical pipeline kana inclined pipeline.
Diaphragm cheki vharuvhu yakanakira mapaipi anowanzo kuita sando yemvura. Iyo diaphragm inogona kunyatsobvisa nyundo yemvura inokonzerwa nekudzokera kumashure kwepakati. Sezvo tembiricha yekushanda uye kudzvanywa kwekushanda kwediaphragm cheki mavharuvhu akaganhurirwa neiyo diaphragm zvinhu, anowanzo shandiswa mupasi-kudzvanya uye akajairwa-tembiricha mapaipi, kunyanya pamapombi emvura yepombi. Kazhinji, tembiricha yekushanda yepakati iri pakati -20 ~ 120 ℃, uye kumanikidza kwekushanda kuri pasi pe1.6MPa, asi diaphragm cheki valve inogona kuwana dhayamita yakakura, uye iyo yakanyanya DN inogona kupfuura 2000mm.
Diaphragm cheki vharafu yakashandiswa zvakanyanya mumakore achangopfuura nekuda kwekuita kwayo kwakanakisa kusapinda kwemvura, chimiro chakareruka uye mutengo wakaderera wekugadzira.
Bhora cheki chevhavha ine kushanda kwakanaka kwekuvhara, kushanda kwakavimbika uye kunaka kwemvura kupikisa nyundo nokuti chisimbiso inharaunda yakafukidzwa nerabha; uye nokuti chisimbiso chinogona kuva bhora rimwe chete kana mabhora akawanda, chinogona kuitwa muhupamhi hukuru. Zvisinei, chisimbiso chayo igomba rakavharwa nerabha, iyo isingakodzeri mapaipi epamusoro-soro, asi yakakodzera chete kune mapiipi epakati uye akaderera.
Sezvo magoko ebhora rekutarisa vharafu achigona kugadzirwa nesimbi isina tsvina, uye gomo mativi echisimbiso anogona kuvharwa nePTFE engineering epurasitiki, inogona zvakare kushandiswa mumapaipi ane general corrosive media.
Kupisa kwekushanda kwemhando iyi yevhavhavha yecheki iri pakati -101 ~ 150 ℃, iyo inodzvinyirira yezita ndeye ≤4.0MPa, uye dhiyabhorosi yezita iri pakati pe200 ~ 1200mm.
Nguva yekutumira: Mar-23-2022
