Common cylinder operation hpe pneumatic valve hku nna hkang ai, dai shaloi pneumatic valve hpe hpaw ra ai shaloi, kaga maga de cylinder intake hte exhaust langai hpe hkang lu na matu, pneumatic valve hpe pat kau ra ai gaw, shawng na intake end exhaust a kaga maga hpe hkang lu na re, dai majaw, action shagu hta exhaust nsen nga ai. Pneumatic valve gaw valve hpe hpaw na matu, hka lim ai shara hpe hpaw na matu, hka lim ai shara langai sha rai nga ai, hka lim ai shara a makau kaw pat da ai nbung pru ai lam hpe sha, hka lim ai shara langai sha rai nga ai. Ndai valve a action gaw lahkawng ngu na exhaust nsen langai mi rai nga ai.
