Tarisa vharafu: Cheki valve inozivikanwawo sevhavha yenzira imwe kana cheki chevhavha, basa rayo nderokudzivirira svikiro mupombi Backflow.Ivharuvhu yepasi yepombi yekuvhara mvura zvakare ndeyechikamu chevharuvhu isingadzoke.Ivhavha inovhura kana kuvhara yega nekuyerera uye simba repakati kudzivirira pakati kubva kuyerera kumashure inonzi cheki valve.Cheki mavharuvhu ndeechikamu cheotomatiki mavharuvhu.Cheki mavharuvhu anonyanya kushandiswa mumapaipi apo svikiro inoyerera munzira imwe, uye inongobvumira svikiro kuti riyerere munzira imwe kudzivirira tsaona.Zvinoenderana nechimiro chevhavhavha yekutarisa, inogona kukamurwa kuva marudzi matatu: lift cheki vharafu, swing cheki vharafu uye butterfly cheki vharafu.Simudza cheki mavharuvhu anogona kupatsanurwa mumhando mbiri: vertical cheki mavharuvhu uye horizontal cheki mavharuvhu.Swing cheki mavharuvhu akakamurwa kuva marudzi matatu: single-shizha cheki vharafu, kaviri-acting cheki vharafu uye akawanda-mashizha cheki vharafu.The butterfly check valve is a straight-through check valve.Mavharuvhu ataurwa pamusoro apa anogona kukamurwa kuita marudzi matatu muchimiro chekubatanidza: shinda yekutarisa vharafu, flanged cheki vharafu uye welded cheki vharafu.
Kuiswa kwevhavha yekuongorora kunofanira kutarisisa kune zvinotevera: Usaita kuti cheki yevhavha inotakura huremu mupombi, uye iyo huru yevhavha yekuongorora inofanira kutsigirwa yakazvimiririra kuitira kuti irege kukanganiswa nekumanikidzwa kunokonzerwa nepiping system.
Paunenge uchiisa, teerera kune kutungamira kwekuyerera kwepakati kunofanirwa kuenderana nekutungamira kwemuseve wakavhoterwa nemuviri wevharuvhu.
Iyo yekusimudza-mhando vertical cheki vharuvhu inofanirwa kuiswa papombi yakatwasuka.Iyo yekusimudza-mhando yakatwasuka flap cheki vharafu inofanira kuiswa pahorizontal pombi.
Main performance parameters ye check valve: Nominal pressure kana pressure level: PN1.0-16.0MPa, ANSI CLASS1 50-900, JIS 10-20K, zita rekuti dhayamita kana caliber: DN15-900.
NPS 1/4-36, nzira yekubatanidza: flange, butt welding, shinda, socket welding, nezvimwewo, tembiricha inoshanda: -196 ℃-540 ℃, vharafu muviri zvinhu: WCB.
ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (3041), CF8M (316), CF3M (316L), Ti, sarudza zvinhu zvakasiyana-siyana, cheki mavharuvhu anogona kushandiswa mvura, chiutsi, mafuta, nitric acid, acetic acid, oxidation Dzebonde. media, urea uye mamwe midhiya.