An apparatus for securing a fastening strip to a web of packaging material comprises an anvil which defines a support surface for the web. The prefetch mechanism may be predictive, using triangle geometry information from previous pipeline stages to pre-charge the cache, thereby allowing for an increase in memory bandwidth efficiency. The present invention sets the least SO2 discharge in general power grids as a target and solves the problem of the present loss of control of SO2 discharge in the generating sets. The adapter element includes a piston orifice plug extension to seal the flow valve piston orifice when the adapter element is engaged with the flow valve.