Wopindikamavavu a chipatandi mtundu wa valavu ya chipata yolumikizidwa ndi ma flange. Amatseguka ndi kutseka makamaka ndi kayendedwe koyima ka chipata pakati pa msewu ndipo amagwiritsidwa ntchito kwambiri poletsa kutseka kwa makina a mapaipi.

(Chithunzi:Valavu ya chipata cha chitsulo cha kaboniDN65)

Mitundu yake ikhoza kugawidwa m'magulu awiri kutengera mawonekedwe a kapangidwe kake: malinga ndi mawonekedwe a tsinde la chipata, pali mitundu ya tsinde lowonekera ndi tsinde lobisika. Pamene valavu ya chipata chachitsulo chowonekera yatsegulidwa kapena kutsekedwa, tsinde limatambasuka kuchokera ku chivundikiro cha valavu, zomwe zimapangitsa kuti pakhale kuwona mwachindunji kuchuluka kwa kutseguka. Ndi yoyenera zochitika zomwe zimafuna kuyang'aniridwa nthawi yeniyeni, monga malo operekera madzi a m'matauni ndi malo opopera madzi. Tsinde la valavu ya chipata chobisika silipita kupitirira chivundikiro cha valavu. Lili ndi kapangidwe kakang'ono ndipo ndi loyenera zochitika zocheperako monga Zitsime za mapaipi apansi panthaka ndi zomera za mankhwala okhala ndi zida zokhuthala. Malinga ndi kapangidwe ka thabwa la chipata, pali mitundu ya wedge ndi mitundu yofanana. Thabwa la chipata cha wedge ndi lofanana ndi wedge, lokhala ndi chisindikizo cholimba, ndipo ndi loyenera mikhalidwe yogwirira ntchito yapakati komanso yapamwamba (PN1.6~16MPa). Pakati pawo, thabwa la chipata chotanuka limatha kulipira kusiyana kwa kutentha ndipo nthawi zambiri limagwiritsidwa ntchito m'mapaipi oyendera nthunzi ndi mafuta otentha. Mapepala a chipata chofanana ali ndi mbali ziwiri zofanana ndipo amatsekedwa ndi kukakamizidwa kwa sing'anga. Amagwiritsidwa ntchito kwambiri pamakina okhala ndi mphamvu zochepa komanso zazikulu zokhala ndi mainchesi a DN300 kapena kuposerapo, monga mapaipi akuluakulu operekera madzi. Ali ndi mphamvu zochepa zotsegulira ndi kutseka ndipo ndi oyenera kugwiritsidwa ntchito pafupipafupi.

Pogwiritsidwa ntchito, chifukwa cha kukhazikika bwino komanso magwiridwe antchito odulira ma flange, amagwiritsidwa ntchito kwambiri m'mafakitale ambiri: mtundu wa ndodo yobisika kapena mtundu wa chipata chofanana umagwiritsidwa ntchito kwambiri m'malo operekera madzi ndi ngalande m'mizinda ndi m'nyumba, komanso m'mapaipi oteteza moto. Mumakampani opanga petrochemical, mavalavu a chipata cha wedge stem nthawi zambiri amagwiritsidwa ntchito m'mapaipi oyendera mafuta osakonzedwa ndi zinthu zamafuta oyengedwa pansi pamikhalidwe yopanikizika kwambiri. Pankhani yamagetsi ndi mphamvu, mavalavu a chipata cha wedge cholimba omwe ali ndi kukana kutentha bwino nthawi zambiri amasankhidwa kuti azizizira madzi ndi mapaipi a nthunzi ya boiler. Mavalavu a chipata chofanana omwe ali ndi kukana kwakukulu kuzinthu zodetsedwa ndi oyenera madzi otayira m'mafakitale ndi machitidwe amadzi ozungulira muzitsulo ndi kukonza madzi. Posankha, kupanikizika, malo ndi mawonekedwe apakati ayenera kuganiziridwa. Kugwira ntchito kwake kodalirika kumapangitsa kuti ikhale gawo lolamulira la machitidwe a mapaipi m'mafakitale osiyanasiyana.

Kusankha mtundu wa ma valve a chipata chopindika kuyenera kuganizira kuthamanga, malo ndi mawonekedwe apakati. Kugwira ntchito kwake kodalirika kotseka kumapangitsa kuti ikhale gawo lofunikira kwambiri lowongolera machitidwe a mapaipi m'mafakitale osiyanasiyana. Ngati muli ndi zosowa zina zokhudzana ndi izi, chonde titumizireni uthenga pansipa. Monga wopanga ma valve a chipata cha mafakitale wazaka 20, Jinbin Valve imakupatsirani mayankho aukadaulo. (Gate Valve Yokhala ndi Mitengo)