Mndandanda wa Q22HD ndi malo apawiri, pisitoni yapawiri yamtundu wa pneumatic solenoid control valve.
Valavu yowongolera pneumatic iyi imatha kuwongolera chiwongolero champhamvu cha mpweya kudzera mumphamvu yamagetsi, kukwaniritsa zosintha ndi zowongolera mu dongosolo la pneumatic. Valavu yotsatizana ya Q22HD imapangidwa ndi zinthu monga pisitoni, thupi la valavu, ndi coil yamagetsi. Pamene koyilo yamagetsi ipatsidwa mphamvu, mphamvu yamagetsi imasuntha pisitoni pamalo enaake, kusintha njira yodutsa mpweya, potero imakwaniritsa kuwongolera kwamphamvu yamagetsi.
Ma valve a Q22HD ali ndi mawonekedwe a mawonekedwe osavuta, ntchito yodalirika, komanso moyo wautali wautumiki. Itha kugwiritsidwa ntchito kwambiri pakuwongolera kuthamanga, kuyendetsa bwino, kuwongolera mayendedwe, ndi mbali zina zamakina a pneumatic. Nthawi yomweyo, ma valve a Q22HD angapo amathanso kusinthidwa malinga ndi momwe amagwirira ntchito komanso zofunikira kuti akwaniritse zosowa za ogwiritsa ntchito osiyanasiyana.