This ST168 foam injector has a compressed air module and can be used with both high and low pressure devices to produce foam, this injector can also be operated using water line pressure (5 bar).  The lever on the injector makes it possible to easily change from chemical to rinse mode, the injector has a compressed air connection meaning a foam lance without air intake can be used to produce foam. Due to the foam being created at the injector a DN12 hose must be used with a 1/2" inlet and outlet wash gun to stop the foam collapsing as it travels down the hose and exits the foam nozzle.

These injectors are used in many industries for industrial cleaning including Agriculture, Automotive and the Food processing industry. This is an essential piece of equipment for anyone looking to design and build an efficient cleaning system within a factory environment. Suitable for systems used to clean vehicles carrying cattle and food processing areas to avoid bacterial spread.

The ST168 easyfoam365+ foam injector is available in nozzle sizes of 1.2 - 2.8mm. Chemical dosing can be adjusted by one of the ten included nozzle inserts.

Foam Application

When applying foam to vertical surfaces it is important to start from the bottom and move upwards. If foam is applied from top to bottom you will get overlap, increasing the foam mass and reducing its contact time with the surface you are working on.

In order for the chemical injector to add chemical to the water stream the pressure being exerted through the injector needs to be lowered. It is important to get the correct injector size combined with foam nozzle size. The larger the hole where the water flow exits the lower the pressure becomes. The higher the water flow of the system the injector is operating on the larger the nozzle hole needs to be. This ensures the pressure is kept low enough to create the vacuum effect required to add chemical to the water stream. If you know the flow and pressure of the system your injector will be working on you can use our interactive chart below to ensure you select the correct products.

We highly recommend using a chemical filter on the end of your chemical tube. This helps to prevent any unwanted debris possibly entering your chemical injector and causing a blockage. Always check the viscosity of the chemical you are using as this can greatly affect the draw rate of the chemical into the water stream. Dosing of chemical can be adjusted by adding one of the ten nozzles inserts which are provided with each injector.

G&S have a range of equipment dedicated to cleaning food processing environments. Take a look at our Food Industry page for more information.