piston valve
device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder
en-GB/ˈpɪstən ˈvælv/
en-US/ˈpɪstən ˈvælv/
device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder