Bi-stable Pinch Valve

This Camcon Pinch Valve is a bi-stable, magnetically supported actuator which is based on the Camcon energy recycling concept. This drives the tube pinching process, opening and closing the passage for fluid. This is very efficient in respect of switching energy.

The valve status is changed over in a fully bi-stable manner by driving a short pulse of electric current through a coil. A spring loaded ball acting, as a catapult flips the armature over into the other stable position. No electric current is needed to maintain open or close position.

A mechanism used with 5 mm silicon tube can be blocked or open in less then 2 ms taking no more then 0.01 Jul (10 mJ) of electric energy. Such a small amount of energy can be provided by a cell battery incorporated within the pinching mechanism and its electronic driver.

Bi-Stable Pinch Valve