Ivalvu yokujonga, eyaziwa ngokuba yiivalvu yokujonga indlela enyeUmsebenzi wayo oyintloko kukuthintela ukubuya kwamanzi kwesi sixokelelwano kunye nokukhusela ukusebenza ngokukhuselekileyo kwezixhobo kunye nenkqubo yemibhobho.Iivalvu zokujonga amanzizisetyenziswa kakhulu kwi-petroleum, kushishino lweekhemikhali, kunyango lwamanzi, kumbane, kwi-metallurgy nakwezinye iindawo.

Kukho iintlobo ezininzi zeevalvu zokujonga, ngokwesakhiwo esahlukileyo kunye nomgaqo wokusebenza, zingahlulwa zibe luhlobo lokuphakamisa, uhlobo lokujika,ivalvu yokujonga ibhabhathane, uhlobo lwebhola njalo njalo. Phakathi kwazo,ivalvu yokujonga ukuphakamayeyona ixhaphakileyo, ene-valve flap yangaphakathi enokuphakanyiswa, kwaye xa i-medium iphuma kwindawo yokungena iye kwindawo yokuphuma, i-valve flap ivuleka phezulu; Xa i-medium ingena kwicala elingasemva, idiski ivaliwe ukuthintela ukubuya kwamanzi.

Ukuze kuqinisekiswe ukusebenza okuqhelekileyo kweivalvu yokujonga engenasicikwaye yandise ubomi bayo benkonzo, ukugcinwa kwayo yonke imihla kubaluleke kakhulu. Nazi ezinye zeenkcukacha zokugcinwa kwayo yonke imihla ngeevalvu zokujonga:

1. Uhlolo oluqhelekileyo

Jonga inkangeleko yevalvu yokujonga rhoqo ukuze ubone ukuba kukho imifantu, ukuguguleka, ukubola nezinye izinto. Kwangaxeshanye, jonga uphawu lwediski kunye nesihlalo ukuqinisekisa ukuba akukho kuvuza.

2. Ukucoca

Hlambulula rhoqo ingaphakathi nangaphandle kwevalvu yokujonga ukuze ususe ukungcola kunye nokungcola. Xa ucoca, kufuneka kusetyenziswe i-ejenti yokucoca engathathi cala ukuze kuthintelwe ukusetyenziswa kwezinto ezirhabaxa ezifana ne-asidi enamandla kunye ne-alkali.

3. Buyisela iindawo ezonakeleyo

Ukuba idiski yevalvu, isihlalo kunye nezinye iindawo zevalvu yokujonga zifunyenwe zonakele okanye zigugile kakhulu, kufuneka zitshintshwe ngexesha. Zitshintshe ngeenkcukacha ezifanayo kunye neemodeli zeendawo zokuqala ukuqinisekisa ukuba ukusebenza kwevalvu akuchaphazeleki.

4. Ukuthambisa

Kwiivalvu ezithile zokujonga ezifuna ukuthambisa, kufuneka kongezwe isixa esifanelekileyo seoyile yokuthambisa okanye igrisi rhoqo ukuze isiqu kunye nesihlalo zithambiseke kakuhle.

5. Unyango lokulwa nokugqwala

Kwivalvu yokujonga umgca esetyenziswa kwindawo enokugqwala, kufuneka kuthathwe amanyathelo afanelekileyo okulwa nokugqwala, njengokugquma umaleko wokulwa nokugqwala kunye nokukhetha izinto ezimelana nokugqwala.

Ngamanyathelo okugcina emihla ngemihla angentla, ungaqinisekisa ukusebenza okuqhelekileyo kwevalvu yokujonga kwaye wandise ubomi benkonzo, kwaye unike isiqinisekiso esinamandla sokhuseleko lwezixhobo kunye nenkqubo yemibhobho.