Mfundo yayikulu yogwirira ntchito ya valavu ya pneumatic ndikuti mpweya woponderezedwa umalowa mu actuator ya pneumatic kuyendetsa Piston, kenako kuzungulira kapena kukweza shaft ya torsion kumayendetsa tsinde.Ma valve a pneumatic amagawidwa kukhala single-acting(spring return) ndikuchita kawiri.

Single-acting(spring return) pneumatic actuatorndi mawonekedwe a Piston oyendetsedwa ndi masika, pali mfundo ziwiri: nthawi zambiri zotseguka (NO) ndipo nthawi zambiri zimatsekedwa (NC), zomwe zikutanthauza kuti: mpweya ukalowa, valve imatsekedwa (NO);mpweya ukalowa, valavu imatsegulidwa (NC).

Mavavu a pneumatic ochita kawiriayenera kukhala okonzeka ndi 5-njira 2-malo valavu solenoid kulamulira mpweya amalowa khomo losiyana ndiyeno kulamulira valavu kutsegula ndi kutseka.Poyendetsa thupi la valavu lomwelo, kutsegula ndi kutseka kwachiwiri kumathamanga kwambiri kuposa kuchita kamodzi.

Mfundo Zoyendetsera Ntchito Pamodzi & Zochita Pawiri

Mfundo ya Single Acting Actuator (Spring Return)

Mpweya wopita ku port A umakakamiza ma pistoni kupita kunja, zomwe zimapangitsa kuti akasupe azikakamira, Pinion imatembenukira molunjika pomwe mpweya ukutha kuchokera padoko B.
Kutaya mphamvu ya mpweya pa doko A, mphamvu zosungidwa mu akasupe zimakakamiza ma pistoni kulowa mkati.Piniyoni imatembenuka molunjika pomwe mpweya ukutha kuchokera kudoko A.

Mpweya wopita ku doko la B umakakamiza ma pistoni kupita kunja, zomwe zimapangitsa kuti akasupe azikakamira, Pinion imatembenukira molunjika pomwe mpweya ukutha kuchokera kudoko B.
Kutaya mphamvu ya mpweya pa doko A, mphamvu zosungidwa mu akasupe zimakakamiza ma pistoni kulowa mkati.Piniyoni imatembenuka molunjika pomwe mpweya ukutha kuchokera kudoko A.

Mfundo ya Double Acting Actuator

Air kupita ku Port A imakakamiza ma pistoni kupita kunja, zomwe zimapangitsa kuti pinion itembenuke molunjika pomwe mpweya ukupita ku Port B.

Air kupita ku Port B imakakamiza ma pistoni kulowa mkati, zomwe zimapangitsa kuti pinion itembenuke molunjika pomwe mpweya ukupita ku Port A.

Air kupita ku Port A imakakamiza ma pistoni kupita kunja, zomwe zimapangitsa kuti pinion itembenuke molunjika pomwe mpweya ukupita ku Port B.
Mpweya wopita ku Port B umakakamiza ma pistoni kulowa mkati, zomwe zimapangitsa kuti pinion itembenuke molunjika pomwe mpweya ukutha kuchokera ku Port A.

Chithunzi cha Torque Chotulutsa