Lub pilot valve yog ib qho kev pabcuam valve siv los tswj cov txheej txheem tswj hauv lwm cov li qub lossis cov khoom siv. Nws muaj cov yam ntxwv ntawm cov teeb liab me me thiab tuaj yeem lees txais ntau txoj hauv kev tawm tswv yim.
1. Tsim tus tsav tswj cov kav dej nrog cov kua ua haujlwm ruaj khov, thiab tswj lub ntsiab valve lossis theem nrab valve lossis qib sib txawv raws li lub teeb liab nkag;
2. Tus nqi ntws ntawm thawj theem pilot valve feem ntau tsuas yog li 1 litre / min, thiab qhov siab tshaj plaws yog 3 litres / min. Tus nqi ntws ntawm qhov thib ob tsav valve yuav tsum tau txiav txim siab raws li qhov xav tau tiag tiag.
3. Cov tswv yim teeb liab kuj me me;
4. tuaj yeem txais ntau yam kev siv tswv yim, xws li phau ntawv, hluav taws xob, hydraulic, pneumatic, mechanical cam, hluav taws xob proportional, thiab lwm yam;
5. Nyob rau hauv cov xwm txheej xws li kev tswj lub twj tso kua mis sib txawv, ntau yam kev tsav valve tsim ib qho qauv, ua kom yooj yim rau kev xaiv ntawm ntau lub zog;
6. Tus tsav valve nws tus kheej feem ntau yog me me tswj valve, feem ntau yog lub siab tswj valve.
