Activity#1
A.
Flap control
Learning objectives:
Upon the completion of this task, the students will be
• familiar with the set-up and mode of operation of a normally closed 3/2- way valve.
• able to recognize and sketch the shuttle valve.
• able to explain and set up control from two different positions (locations).
Problem Description:
A flip control is used to empty granular material from a container. This machine can be operated
from two different locations using two push button valves. By pressing any one of two
pushbutton valves the flap is closed and the granular material is emptied from its container. After
releasing the pushbutton valve the flap control is closed again as shown in the figure below.
