Tarisa mavharuvhu, inozivikanwawo secheki mavharuvhukana cheki mavharuvhu, anoshandiswa kudzivirira backflow vezvenhau mupombi. Ivharuvhu yetsoka yekukweva kubva papombi yemvura zvakare ndeyechikamu checheki mavharuvhu. Zvikamu zvekuvhura nekuvhara zvinotsamira pakuyerera uye simba repakati kuti rivhure kana kuvhara roga, kuitira kudzivirira svikiro kuyerera kumashure. Cheki mavharuvhu ndeechikamu cheotomatiki vharafu, anonyanya kushandiswa pamapaipi apo iyo yepakati inoyerera munzira imwe, uye inongobvumira yepakati kuyerera munzira imwe kudzivirira tsaona.
Zvinoenderana nechimiro, cheki vharafu inogona kukamurwa kuita marudzi matatu: kusimudza cheki vharafu,swing check valveuyebutterfly cheki vharafu. Kusimudza cheki mavharuvhu anogona kukamurwa vertical cheki mavharuvhu uye horizontal cheki mavharuvhu.
Kune marudzi matatu eswing cheki mavharuvhu: single-lobe check valves, double-flap check valves uye multi-flap check valves.
Iyo butterfly cheki vharafu ndeye yakatwasuka-kuburikidza nekutarisa vharafu, uye iri pamusoro cheki mavharuvhu anogona kukamurwa kuva marudzi matatu: threaded yekubatanidza cheki vharafu, flange yekubatanidza cheki vharafu uye welded cheki vharafu.
Kuchenjerera kunofanira kubhadharwa kune zvinotevera zvinhu pakugadzwa kwemavharuvhu echeki:
1. Usagadzira iyocheki vharafutakura uremu mupombi, uye vheji hombe yekutarisa inofanira kutsigirwa yakazvimiririra kuitira kuti irege kukanganiswa nekumanikidzwa kunoitwa nepombi.
2. Panguva yekuisa, teerera kune kutungamira kwekuyerera kwepakati kunofanirwa kuenderana nekutungamira kwemuseve wakavhoterwa nemuviri wevhavha.
3. Iyo inosimudza vertical flap cheki vharafu inofanira kuiswa pane yakatwasuka pombi.
4. Kusimudza horizontal flap check valve inofanira kuiswa pahorizontal pipeline. Chii chinonzi vertical check valve? Vertical cheki mavharuvhu anoshandiswa zvakanyanya mumasisitimu pazvinenge zvichidikanwa kudzivirira kudzoka kwe media, sekubuda kwepombi, kupera kwemvura inopisa, uye kupera kwepombi yecentrifugal. Basa rayo nderekudzivirira mhedzisiro inogona kuitika kubva kumashure kwepakati, semuenzaniso, kana kubuda kwepombi isina kurongedzerwa vertical cheki vharafu, iyo yakakwirira-yekukurumidza kudzoka mvura inokonzera kukanganisa kukuru pane impeller ye. pombi apo pombi inongoerekana yamira; Kana vertical check valve (foot valve) isati yaiswa pakuguma kwekukwevera kwepombi ye centrifugal, pombi inoda kuzadzwa nguva dzose pombi inoshandurwa.
Mimwe mibvunzo, unogona kubata neTWS VALVE iyo inonyanya kugadziraakanyarara akagara butterfly vharafu, gedhi vharafu, cheki vharafu, Y-strainer, nezvimwe.
Nguva yekutumira: Nov-21-2024
