Ama-valves avaliwe kaphethiloli ayizinto ezibalulekile ngaphakathi kohlelo njengoba zimele idivaysi yokuphepha yesenzo esihle. Indima eyinhloko edlalwa yile divayisi ukunqamula futhi ivimbele uphethiloli ngaphambi kokuthi ifinyelele ekushiseni, ngaleyo ndlela igweme ukushisa okubilayo kwesifunda ukungena ohlelweni kusuka ekufinyeleni. Lokhu kufanekisela indlela yokugwema ukulimala kohlelo uqobo kodwa nakubantu abaseduze kwalo.

Ngabe usebenza kanjani i-valve evaliwe?

Kunezinto ezimbili eziyisisekelo ze-valve:
- Umzimba we-valve: lapho uphethiloli, uketshezi noma u-gaseous, udlula;
- Idivaysi yokulawula: Ifakwe ngento ebucayi.
Induku ye-shutter ixhunyiwe kwidivaysi yokulawula futhi idala ukuvalwa kwe-valve uma kunesidingo. Uma konke kusebenza kahle, induku ye-shutter iphumula kwi-piston futhi iqinisekise ukudlula kophethiloli. Kodwa-ke, uma kwenzeka ukungasebenzi kahle noma ukungasebenzi kahle, ipiston ihamba futhi idala ukuvalwa ngokunciphisa induku ye-shutter. Athini la macala?
- Ukunwetshwa ngokweqile koketshezi: I-piston iqhubekela kwesobunxele futhi yenza ukuba induku yehle, yavala indawo kaphethiloli;
- Ukuqhekeka kwe-capillary: I-piston iqhubekela kwesokudla kanye nezimbangela, futhi, isici senduku ngenduku ngokulandela ukuvalwa kwendima.
Lapho i-valve ivala, kungenzeka ukuthi ubuye ekusebenzeni kuphela ngokusebenzisa ukusetha kabusha okwenziwa ngesandla kuphela uma uketshezi lunokushisa ngaphansi kwama-87 ° C kanti ama-capillary awaphukile noma awonakalisiwe.