Mechanical pinch valves ensure the precise filling of big bags

A manufacturer of big bag filling systems fits DN 150 mechanical pinch valves from the OV series in the factory. Each mechanical pinch valve doses the medium used to fill the big bags.

The big bag filling systems are fitted with a funnel-shaped collection chamber with a negative pressure of 500 mbar. The medium used to fill the big bags is sucked out of the pipeline due to the vacuum and collects in the container, where the installed mechanical pinch valve is opened via a manually operated handwheel to start the filling process for the big bags attached below.

The manufacturer normally installs knife gate valves in its filling systems but these can cause problems when transporting abrasive media such as bulk goods, etc. because the slide plates often wear quickly or the seat for the knife gate housing becomes clogged with the medium and it is no longer possible to completely close the slide plate. Therefore, the company has installed pinch valves from the manufacturer AKO Armaturen for use with highly abrasive media for more than 25 years because they also guarantee a longer service life with very difficult to handle substances.

Do you have a comparable filling or dosing application?
We would be delighted to advise you on the use of mechanical pinch valves! 

As the valves installed in this area are responsible for two of the main tasks within the complete system – namely dosing and shutting off the medium used for filling – flawless and reliable operation is absolutely vital. Another advantage of the pinch valves from AKO Armaturen in comparison to other types of valves: The mechanical pinch valve only has a few components – the housing, sleeve and mechanism. Mechanical pinch valves from AKO Armaturen do not have sophisticated valve designs as found in other types of valves (e.g. ball valves, knife gate valves, flaps, etc.). Using a mechanical pinch valve not only reduces maintenance costs but also the time required to carry out the maintenance work.