Multi-tig hluav taws xob valve actuator yog ib qho khoom siv tsav tsheb rau cov li qub kom paub qhib, kaw lossis tswj kev tswj xyuas. Nws yog tsim rau lub rooj vag li qub, lub ntiaj teb li qub, diaphragm li qub, plunger li qub, throttle li qub, lub rooj vag dej, thiab lwm yam. Nws tuaj yeem siv rau qhov nce qia li qub thiab tsis nce qia li qub. Cov khoom siv hluav taws xob no muaj cov yam ntxwv ntawm kev ua tiav, kev ua haujlwm ruaj khov, me me, lub teeb yuag, thiab siv tau yooj yim thiab tu. Kev tswj chaw taws teeb, kev tswj hwm hauv nruab nrab thiab kev tswj tsis siv neeg tuaj yeem siv rau ntawm lub valve. Dav siv nyob rau hauv hluav taws xob fais fab, metallurgy, roj av, tshuaj lom neeg kev lag luam, papermaking, dej phwj kho mob thiab lwm yam lag luam.
Multi-tig hluav taws xob actuators raug cais raws li hom kev tiv thaiv: hom sab nraum zoov thiab hom tawg-pov thawj;
Raws li kev tswj hwm hom: muaj cov ntse on-off hom thiab ntse modulating hom;
Raws li hom kev sib txuas: muaj hom torque, hom chaw nres tsheb fais fab thiab hom thrust.
Kev ua tau zoo ntawm cov khoom no ua raws li cov kev cai ntawm JB/T8528-1997 "Technical Conditions for Ordinary Electric Valve Actuator". Qhov kev ua tau zoo ntawm cov khoom pov thawj tawg ua tau raws li GB3836.1-2000 "Electrical Equipment for Explosive Gas Atmospheres Part 1: General Requirements", GB3836.2-2000 "Electrical Equipment for Explosive Gas Atmospheres Part 2: Flameproof Type "d" thiab Cov kev cai ntawm JB/T8529-1997 "Technical Cov xwm txheej rau tawg-pov thawj Fais Valve Actuator "d".
