Ama-valve okulawula ukugelezaukudlala indima ebalulekile ekuqinisekiseni ukusebenza kahle nokuphephile kwezinqubo ezihlukahlukene ngaphakathi komkhakha wezamandla. Lawa mavalvu alawula ukugeleza koketshezi, njengamanzi, isitimu, negesi yemvelo, kuzo zonke izinhlobo zezinto ezisetshenziswayo, okuhlanganisa ukukhiqizwa kwamandla, ukukhiqizwa kukawoyela negesi, nokucwengisiswa. Ngokuthuthukisa ukulawulwa kokugeleza, lawa ma-valve afaka isandla ekongeni amandla abalulekile, ukukhishwa kwekhabhoni encishisiwe, kanye nokuzinza kwenqubo okuthuthukisiwe.
Ezitshalweni zamandla, ama-valve okulawula ukugeleza ayizingxenye ezibalulekile ezinhlelweni ezihlukahlukene, okuhlanganisa izinjini zesitimu, izinhlelo zamanzi okuphakelayo, nezinhlelo zamanzi zokupholisa. Ukulawula ukugeleza okunembayo kubalulekile ekugcineni umfutho wesitimu kanye nezinga lokushisa elifanele, ukuqinisekisa ukusebenza kahle kwe-turbine, nokuvimbela ukulimala kwemishini. Ngokusebenzisa ama-valve okulawula ukugeleza athuthukile, izitshalo zikagesi zingafinyelela intuthuko ephawulekayo ekusebenzeni kahle kwamandla, okuholela ekunciphiseni ukusetshenziswa kukaphethiloli kanye nezindleko eziphansi zokusebenza.
Isikhungo esikhulu samandla e-United States sithuthukise uhlelo lwaso lokulawula i-steam turbine ngamavalvu okulawula ukugeleza ahlakaniphile. Lawa ma-valve, afakwe izinzwa ezithuthukisiwe nama-actuator, anikeze ukuqapha kwesikhathi sangempela kanye nokulungiswa okunembile kokugeleza kwesitimu. Ngenxa yalokhu, indawo yokuphehla amandla ibone ukukhuphuka okungama-2% ekusebenzeni kahle kwezinjini zomoya, okuhumushela kukonga uphethiloli konyaka wesigidi esingu-$1.
Embonini kawoyela negesi, ama-valve okulawula ukugeleza adlala indima ebalulekile ekulawuleni ukugeleza koketshezi ngesikhathi sokukhiqiza, ukuthuthwa, nokucubungula. Ukuthuthukisa ukulawulwa kokugeleza kunomthelela ekwandeni kokukhiqizwa kwe-wellhead, ukunciphisa ukulahlekelwa kwengcindezi kumapayipi, kanye nokwenza ngcono ukusebenza kahle kokuhlukanisa ezindaweni zokucubungula. Ngokunciphisa ukusetshenziswa kwamandla nokwandisa isivuno somkhiqizo, ama-valve okulawula ukugeleza anegalelo kuyo yonke inzuzo yokusebenza kukawoyela negesi.
Umsebenzisi wendawo kawoyela eMpumalanga Ephakathi usebenzise uhlelo oluphelele lokulawula ukugeleza kuyo yonke imithombo yalo yokukhiqiza. Ngokusebenzisa ama-valve okulawula ukugeleza asebenza kahle kakhulu kanye namasu okulawula okuthuthukile, opharetha wazuza ukwanda kwe-5% ekukhiqizeni kwe-wellhead, okuholele ekwengezeni kweminye imiphongolo kawoyela eyi-10,000 ngosuku.
Ezimbonini zokucwenga nokucubungula, ama-valve okulawula ukugeleza abalulekile ekugcineni ukulawula okunembile kokugeleza kwamanzi ezinqubweni ezihlukahlukene, okuhlanganisa ukucwiliswa kwe-distillation, ukuqhekeka, nokuhlanganisa. Ukulawula ukugeleza okunembile kuqinisekisa ikhwalithi ephezulu yomkhiqizo, kunciphisa ukusetshenziswa kwamandla, futhi kuvimbele ukuchitheka okuyingozi nokuvuza. Ngokufaka isandla ekusebenzeni okuphumelelayo nokuthobela imvelo, ama-valve okulawula ukugeleza adlala indima ebalulekile ekusimameni kwemboni yokucwenga nokucubungula.
Imboni yokuhluza eYurophu iqalise iphrojekthi yokushintsha ama-valve okulawula ukuguga ngamamodeli esimanje, awonga amandla. Amavalvu amasha ahlinzeke ngokulawula ukugeleza okuqinile nokuncipha kokulahlekelwa kwengcindezi, okuholele ekwehleni kokusetshenziswa kwamandla ngo-10%. Lokhu kuncipha kokusetshenziswa kwamandla kuhunyushwe ekuncipheni okuphawulekayo kokukhishwa kwesisi esibamba ukushisa, okubonisa izinzuzo zemvelo zobuchwepheshe bokulawula ukugeleza okuthuthukile.
Ama-valve okulawula ukugeleza awazona nje izingxenye zemishini; zingamandla okusebenza kahle kanye nokusimama emkhakheni wezamandla. Ngokuthuthukisa ukulawula ukugeleza, lawa ma-valve afaka isandla ekwehliseni ukusetshenziswa kwamandla, ukukhishwa okuncane, kanye nokuqina kwenqubo okuthuthukisiwe. Njengoba umkhakha wezamandla uguqukela ekubeni nekusasa elihlanzekile nelizinzile, amavalvu okulawula ukugeleza azoqhubeka nokudlala indima ebalulekile ekufezeni lezi zinhloso.