Mfundo Yogwira Ntchito ndi Magulu a Taike Valve Check Valves

Vavu yoyang'ana: Vavu yowunikira, yomwe imadziwikanso kuti valavu yanjira imodzi kapena valavu yoyendera, imagwiritsidwa ntchito kuletsa sing'anga mupaipi kuti isabwererenso. Valavu yapansi yoyamwa pampu yamadzi ndi kutseka imakhalanso m'gulu la ma check valve. Valavu yomwe imadalira kuthamanga ndi mphamvu ya sing'anga kuti itsegule kapena kutseka yokha, pofuna kuteteza sing'anga kubwerera mmbuyo, imatchedwa check valve. Ma valve owunika ali m'gulu la ma valve otomatiki. Ma valve owunika amagwiritsidwa ntchito kwambiri m'mapaipi okhala ndi ma media osagwirizana, zomwe zimaloleza njira imodzi yokha ya media kuti apewe ngozi. Ma valve owunika amatha kugawidwa m'mitundu itatu molingana ndi kapangidwe kawo: ma valve okweza, ma valve oyendera, ndi ma valve a butterfly. Ma valve okwera amatha kugawidwa m'mitundu iwiri: ma valvu oyang'ana owoneka ndi ma valve opingasa. Mavavu oyendera ma swing amagawidwa m'mitundu itatu: mavavu owunika ma disc amodzi, ma valve awiri owunika ma disc, ndi ma valve owunika ma disc ambiri. Mavavu agulugufe amawongoka kudzera mu ma valavu, ndipo mitundu yomwe ili pamwambapa ya ma valavu amatha kugawidwa m'mitundu itatu pokhudzana ndi kulumikizana: ma valavu amtundu wa ulusi, ma valve owunika a flange, ndi ma weld cheke.

Kuyika ma valve cheke kuyenera kulabadira zinthu zotsatirazi:

1. Musalole kuti valavu yowunika ikhale yolemera mu payipi. Ma valve akuluakulu a cheki ayenera kuthandizidwa paokha kuti asakhudzidwe ndi kukakamizidwa kopangidwa ndi mapaipi.

2. Pakuyika, tcherani khutu kumayendedwe apakati omwe ayenera kukhala ogwirizana ndi mivi yomwe ikuwonetsedwa pa thupi la valve.

3. Mavavu owunika amtundu wa vertical disc ayenera kuikidwa pamapaipi oyima.

4. Mtundu wonyamulira wopingasa chimbale valavu ayenera kuikidwa pa payipi yopingasa.

Ntchito zazikuluzikulu za ma valve cheke:

Kuthamanga mwadzina kapena kupanikizika: PN1.0-16.0MPa, ANSI Class150-900, JIS 10-20K, m'mimba mwake mwadzina kapena m'mimba mwake: DN15 ~ 900, NPS 1/4-36, njira yolumikizira: flange, kuwotcherera matako, ulusi, socket kuwotcherera, etc., kutentha yoyenera: -196 ℃~540 ℃, valavu thupi chuma: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (304L), CF8M (316), CF3M (316L), Ti. Posankha zipangizo zosiyanasiyana, valavu yowunikira ikhoza kukhala yoyenera pazinthu zosiyanasiyana monga madzi, nthunzi, mafuta, nitric acid, acetic acid, oxidizing media, urea, etc.