pressure / flow switch (high pressure) Home › Forums › Public Forums › General Plumbing › pressure / flow switch (high pressure) This topic has 1 reply, 2 voices, and was last updated 22 years, 2 months ago by SylvanLMP. Viewing 1 reply thread Author Posts 15 Jan 2001 at 4:15 pm #274408 Alison We use reciprocating piston style high pressure water pumps to wash product. We need a switch which will sense the flow of water to the nozzle. The purpose is to automatically shut the pump off when not in use. 16 Jan 2001 at 2:39 am #289699 SylvanLMPParticipant Check out WW Granger Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In