Diagram Of Water Check Valve. One check valve is designed for both 1½ and 2 pipe. To read and understand engineering fluid diagrams and prints usually referred to as pids an individual must be familiar with the basic symbols.
It is a two way valve because it contains two ports. Install a minimum of 12 diameters of straight pipe upstream of all circulators and check valves. Swing check valves are a necessary part of any pipeline where the flow can only go in one direction.
13 both valves 45 or 90 fitting.
2 pipe slip fits into valve ports. The vector stencils library valves contains 91 symbols of piping and plumbing valves. Youll notice that this is a single line jet pump one water line rising from the pump assembly. It consists of a check valve cv which moves automatically up and down under the pressure of water on its gun metal seat.