Uyini Umehluko Phakathi Kwe-Non Return Valve kanye ne-Check Valve

Uma usebenza nezinhlelo zamapayipi, ungase uzwe kokubiliivalvu engabuyisi (i-NRV)futhiivalvu yokuhlolakuyasetshenziswa. Uma uqala ukubheka, zingase zizwakale njengezivalo ezimbili ezihlukene. Kodwa ingabe ziyafana ngempela? Noma ingabe kukhona umehluko okufanele siwuphawule? Ake siwuchaze ngamagama alula.

Iyini i-Non Return Valve (NRV)

Ivalvu engabuyi uhlobo lwevalvu evumela uketshezi—kungakhathaliseki ukuthi uketshezi noma igesi—ukugeleza ohlangothini olulodwa kuphela. Uma ukugeleza kuma noma kuzama ukubuyela emuva, ivalvu ivala ngokuzenzakalelayo. Lo msebenzi uvimbela ukugeleza emuva, okungalimaza imishini noma kungcolise imithombo ehlanzekile.

Ama-NRV avame ukusetshenziswa ku:Izinhlelo zokuphakelwa kwamanzi ukuvimbela ukungcola.Amaphampu okuvimba ukugeleza kwamanzi uma iphampu ivaliwe.Amapayipi ezimboni lapho ukugcina ukugeleza komzila owodwa kubalulekile khona.

Iphuzu elibalulekile lilula: i-NRV iqinisekisa ukuthi uketshezi luya phambili futhi aluphinde lubuye.

Iyini i-Check Valve

Ivalvu yokuhlola isebenza ngendlela efanayo. Iphinde imise ukugeleza okuphambene futhi iqinisekise ukuthi uketshezi luhamba ohlangothini olulodwa kuphela. Amavalvu yokuhlola angatholakala cishe kuzo zonke izimboni, kusukela ekuhlanzweni kwamanzi kuya ku-oyili negesi.

Kunezinhlobo eziningana zama-check valve, njenge:Amavalvu okuhlola ukujikijela (anediski enezihibe evuleka noma evalekayo).Amavalvu okuhlola ukuphakamisa (amadiski aphakamisa phezulu noma phansi ngokugeleza).Ama-valve okuhlola ibhola (ibhola lisebenza njengendlela yokuvala).Amavalvu okuhlola i-wafer (umklamo oqinile wezindawo ezixineneyo).

Ngakho-ke, Uyini Umehluko?

Nakhu lapho izinto ziba mnandi khona. Iqiniso liwukuthi: ivalvu engabuyisi kanye nevalvu yokuhlola empeleni kuyinto efanayo. Umehluko omkhulu usesigabeni samagama.

• I-valve engabuyisi (i-NRV) yigama elijwayelekile noma elichazayo, elivame ukusetshenziswa esiNgisini saseBrithani nasezimbonini ezihlobene namanzi.

• I-Check valve yigama elisetshenziswa kabanzi, ikakhulukazi esiNgisini saseMelika nasezimweni zezimboni noma zemishini.

Ngakho-ke, uma othile ethi i-NRV, ukhuluma ngedivayisi efanayo omunye umuntu angayibiza ngokuthi i-check valve. Zombili zifeza injongo efanayo: ukuvimbela ukugeleza kwegazi emuva.