The invention provides a novel dual-membered suctional gasket which has a reliable function to fit and fix the gasket to an object to be sealed, and also provides an effective suction effect and air venting function. For that purpose, the gasket which has a function to prevent fluid from leaking when compressed, com...

In a diaphragm actuator in which one end of a rod is connected to the central part of a diaphragm, opposite sides of the diaphragm facing first and second pressure chambers since the end of the rod is directly connected to the diaphragm the number of parts required for connecting the rod to the diaphragm c...