The button valve switch is a manual control switch, mainly used in the industrial automation industry. There are two operating positions: two-position and three-position. A three-position switch may have a certain side position that is not positioned, etc. There are many types of button handles for toggle switches, such as metal cone button handles, plastic cone button handles, fluorescent button handles, plastic sleeve button handles, ball button handles, flat rod button handles, locking rod button handles, wave button handles, and paddle button handles. Handle etc. Locking lever button handles are suitable for hazardous operating situations. There is also a "lift and unlock" button handle with a spring on it and a milled groove at the end of the solenoid. The operator must first lift the button handle and then push it to another position to ensure safe work.