Chitsulo chosapanga dzimbiri kapena kapangidwe ka chitsulo cha kaboni (pamwamba pake pakhoza kupopedwa ndi pulasitiki kapena kuphulika ndi mchenga).

Chogulitsachi ndi chothandizira kukhazikitsa ma valve actuator, chomwe chimagwiritsidwa ntchito makamaka polumikiza chivundikiro cha pamwamba pa valve ndi chipangizo choyendetsera (mutu wamagetsi/mutu wa pneumatic). Kudzera mu kulumikizana kwa flange ya pamwamba ndi pansi kuti muzindikire malo ndi mphamvu yotumizira, kapangidwe kothandizira kuti zitsimikizire kuyika kwa coaxial ndi zofunikira zamphamvu. Ndikoyenera makina okhazikika kapena osinthidwa a ma valve.