There are several options for both manual and actuated valves. They can be manually operated or automated with an electric or pneumatic actuator.
Sharpe Valves
3 way valve flow diagram. In this fairly common example the center box indicates that there will be no air flow and the associated cylinder wont move unless one of the two actuators is active. Three way valve operation and limitations. Jandyparts diagram links jandy parts diagrams index jandy valve models 1154 and 2875 3 way jandy valves models 43674369 4371 2 way jandy never lube valves models 4716471547172724 49444945 2 and 3 way. Valve ansi or iso schematic symbols and flow diagrams solenoid valves are widely used to control the flow of either a gas or liquid in many types of components or equipment. With this 3 position valve the center flow box shows the flow path when neither actuator is active and the springs are holding the valve in the center position. About 3 way ball valves.
Three way multiport ball valves can solve many application problems but only if you understand how they can be used to direct the system flow. Three way 3 way ball valves are the simplest means to divert the direction of flow in plumbing pipe fitting and other industrial applications. These electrically operated control valves are typically employed in a two way or three way operation and are specified as normally closed or normally open in a de. 3 way solenoid valves have three ports for fluid and like 2 way valves may be referred to either as normally open and normally closed. The turn of a handle can change the flow from one port to another open two ports to receive fluidsgasses send the content of two pipes into one or shut down flow completely. They can be used as diverter valves where flow a single inlet is diverted to either of the two other ports.
With two paths for flow sharing one common terminal. Ports on a pneumatic 3 way valve are commonly labeled with the letters p e and c. They are available in a variety of body materials and with all of the common end connections. A 52 way valve can be used as a 32 way valve by only using only one inlet and the corresponding outlet port. Vertical type t pattern flow three way ball valves have one possible flow path and one possible off position. With two 22 way valves the function of a 32 way valve can be mimicked.
The handle start position is on the left. As the temperature from the terminal unit or coil is satisfied the flow rate is reduced in the coil and the flow is diverted to the bypass. Three way ball valves have 3 ports. 32 way valves are suitable for several tasks. Three way control valves may be diverting or mixing depending on how they are ported and controlled. From left to right each image represents a 90 degree counterclockwise turn of the valve handle.
Three way multiport ball valve flow patterns. Lets take a look at the manual valves first. 3 way solenoid valves operate in a manner analogous to single pole double throw spdt electrical switches. The sketch below shows a three way diverting valve system. Driving pneumatic actuators blow off pressure release and vacuum applications.
Gallery of 3 Way Valve Flow Diagram
