Quarter-Turn Valves

In some designs, a valve can be taken from fully open to fully closed position with a quarter (1/4) turn of a lever. Depending upon the design, valves of this type can be used for:

a. Open or Close service only.

b. Throttling Action (i.e. allowing midway operational positions).

In this category, in the following pages we will look at three main designs:

a. Butterfly valves

b. Ball valves

c. Plug valves