Germany: Beumer Group is promoting its new mobile bag tester. The testing device is intended to help users to determine the venting capacity of any type of valve bag, such as those used in the cement industry, including all paper and plastic layers, and glued areas. The determined parameters can be used to optimise the manufacture of bags or check conformity with specifications.

The bag tester is intended to give users with information on the filling behaviour of each bag that is useful for the manufacture of bags and filling technology, as well as for transport and logistics. The 14kg apparatus is housed in a stable hardtop case on wheels making it mobile.

A pressure-compensated flow control valve on the device constantly increases the volume flow rate until a steady pressure of 50mbar is reached. With this pressure, the user can read the current volume flow rate, which indicates the air permeability, from the flow-rate meter. A filling spout with inflatable sleeve seals the bag valve during the airflow measurements. The scope of supply includes an additional inflatable sleeve for valve widths of up to 200mm.