Proportioning Tests

When your extinguishing foam system is delivered to us, we perform a live test that is instantly valid for the test years that follow. From that point on, a 3-year testing cycle starts using both water/water reference tests and foam proportioning tests.

Depending on your extinguishing foam system, the proportioning tests can be divided into the 2 sub-groups:

1.Proportioning test with the addition of foam or water to the water stream

The foam proportioning test involves actually adding foam concentrate to the water stream. This is usually done using a foam proportioner that is placed in the water line. The volumetric flow is adjusted by an InnoVfoam expert using the appropriate volumetric flow meters. The water/foam mixture is collected in our own tank trailer for responsible disposal. The proportioning percentage is determined very carefully using the appropriate measuring equipment, such as a refractometer.

A water/water reference test, as the name suggests, is used as a reference for the foam proportioning test. As the name suggests, instead of foam, water is added to the water stream. This saves on the consumption of foam, but also eliminates the cost of collection and disposal. If you do not have water/water test connections, we can offer advice on a solution.

2.Proportioning via a simulation with volumetric flow meters

More recent developments include what are known as electronic proportioning systems. These systems work based on volumetric flow, creating accurate proportions as a result. Of course, it is important to test these systems to ensure correct operation. By simulating the installation, it is not necessary to actually proportion, meaning and the costs of foam, collection and disposal can all be saved. Do you want to know more about these testing method? One of our experts would be happy to help you. You can also read more here.