Pozimitsa moto, ma valve amagwira ntchito yofunika kwambiri poyendetsa madzi kapena zinthu zina zozimitsa moto. Mitundu iwiri ya mavavu omwe amagwiritsidwa ntchito kwambiri pamundawu ndi mavavu agulugufe ndi mavavu a mpira. Ngakhale kuti mitundu iwiriyi ya ma valve imakhala ndi zolinga zofanana, imakhala ndi kusiyana kwakukulu komwe kumawapangitsa kukhala oyenera pazochitika zinazake.
Chimodzi mwa kusiyana kwakukulu pakati pa ma valve a butterfly ndi ma valve a mpira ndi mapangidwe awo. Vavu yagulugufe, monga momwe dzinalo likusonyezera, imakhala ndi chimbale chomwe chimazungulira mupaipi kuti chisamayende bwino. Chimbalecho chimamangiriridwa ku ndodo yachitsulo (yotchedwa tsinde) yomwe imatembenuzidwa ndi gudumu lamanja kapena actuator. Komano, mavavu a mpira amagwiritsa ntchito mpira wozungulira wokhala ndi bowo pakatikati kuti azitha kuyendetsa bwino kuyenda. Mpira uli ndi chogwirira kapena lever yomwe imatha kuzunguliridwa kuti itsegule kapena kutseka valavu.
Kusiyana kwina kodziwika ndi makina osindikizira. Mu valve butterfly, diskiyo imasindikiza chisindikizo cha rabara (chotchedwa mpando) chomwe chili mkati mwa thupi la valve. Kapangidwe kameneka kamalola kugwira ntchito mwachangu komanso kosavuta. M'malo mwake, ma valve a mpira amagwiritsa ntchito malo awiri osindikizira, omwe nthawi zambiri amapangidwa ndi Teflon, kuti apereke chisindikizo cholimba pamene chatsekedwa. Kukonzekera uku kumawonjezera ntchito yosindikiza ya valve, ndikupangitsa kuti ikhale yoyenera kwa mapulogalamu omwe amafunikira kutsekedwa mwamphamvu.
Pankhani yowongolera kuthamanga, ma valve a butterfly ndi mpira amapereka ntchito yabwino kwambiri. Komabe, ma valve agulugufe amadziwika kuti ali ndi mphamvu yochepa poyerekeza ndi ma valve a mpira. Izi zikutanthauza kuti mphamvu zochepa zimafunikira kukankhira madzi kapena zida zina zozimitsa moto kudzera mu valve ya butterfly, kuchepetsa ndalama zopopera. Ma valve a mpira, kumbali ina, amapereka kutsegulira kwathunthu, kulola kuyenda mopanda malire komanso kutaya mphamvu zochepa, kuwapanga kukhala abwino kwa mapulogalamu othamanga kwambiri.
Pankhani ya mtengo, mavavu agulugufe nthawi zambiri amakhala otsika mtengo kuposa ma valve a mpira. Mavavu a butterfly'kamangidwe kosavuta komanso kosavuta kugwira ntchito kumathandizira kuti athe kukwanitsa. Kuonjezera apo, chifukwa cha chisindikizo cha rabala, valavu ya butterfly imakhala yochepa kwambiri kuti iwonongeke, motero kuchepetsa ndalama zothandizira.
Mwachidule, pamene ma valve a butterfly ndi ma valve a mpira ali oyenerera ntchito zotetezera moto, kusiyana kwawo kwakukulu kumawapangitsa kukhala oyenera pazochitika zenizeni. Ganizirani zofunikira zachitetezo chamoto wanu ndikufunsani katswiri kuti adziwe kuti valve (gulugufe kapena valavu ya mpira) ndiyo yabwino kwambiri pazosowa zanu.
Nthawi yotumiza: Nov-24-2023