This Proportion-Air leak test device was designed to fill and maintain pressure in a PUT (Part Under Test). It has the ability to shut down the fill function so a leak can be measured. Here, we are performing a fuel tank leak test with flow measurement.

In this drawing, a 16 gallon automotive fuel tank is leak tested at 5.00 psig. The device uses two high flow digital solenoids to rapidly fill large volumes. During the test, an analog signal is sent to the device to shut down the control valves to ensure leak compensation cannot occur. If leaks are present, the flow meter detects the leak rate and tells the PLC. The remote sense line then ensures the proportional (high resolution) solenoid maintains the pressure even as the vessel leaks.

Although this leak test device is not a standard product, it is one example of the many custom solutions we can help you build to fit your unique needs. Please reach out to us for more information.

Visit our Test & Analysis market page for more ideas about leak testing.