There are two main types of diverter valves. Both types switch flow from one line into one of two outlets.
One type is Wye Line Diverter, which contains a hinged disc at the intersection to close one of the two outlets. This type of valve is best for handling dry bulk materials in dilute phase vacuum or pressure pneumatic conveying systems. They are designed to eliminate material cross contamination and buildup.
The second type of diverter is primarily used for liquid services. Instead of using moving parts (like the disc in the wye line diverter), the flow stream is altered by pneumatic pressure differential.
There are 3 Standard types of Diverter Valves
-
Y type Diverter Valve
-
T type Diverter Valve
-
R type Diverter Valve
-
Y type Diverter Valve
A standard Y type diverter valve with one inlet and two outlets. The process flow enters the top connection and the outlet flow is to either or both of the outlet lines existing in parallel below the valve body.
-
T type Diverter Valve
A standard T type diverter valves. In all designs the angular relationship of the outlet ports may be changed to meet the requirements of the installation. Special designs are also available for large size valves or high flow rates.
-
R type Diverter Valve
The R type diverter valve is similar to the Y type except that the outlets are at right angles to the inlet flow. This design frequently utilises rotating, contoured pistons/rams on one or both sides to assure smooth, unobstructed flow. This is a particularly useful feature for highly viscose media such as polymer or heavy gas oil with high solids content.
Choice of Diverter Valve configuration or type depends on a number of factors including flow characteristics of the medium, available space, piping layout and process or application requirements.