Ukuvalwa kwe-pneumatic kwahlulwe ngokweendidi ezimbini: ukutshixelwa kwe-cylinder kunye nokuvalwa kombhobho we-pneumatic.Ukuvalwa kwe-cylinder yenzelwe ukuthintela ukusebenza kwe-valve engundoqo yokusingatha kwiindidi ezininzi zeesilinda;Ukuvalwa kombhobho wepneumatic kubalulekile ekucimeni kombane kunye nokwahlukaniswa kwemithombo yombane ecinezelweyo.