Patent ID: 8535037

Claim:
A blow molding machine for producing plastic bottles, comprising: a plurality of blow molding stations, the stations having assigned thereto valve blocks with valves and blowing nozzles for introducing or discharging blowing air; a cleaning-in-place system for cleaning the blow molding machine, comprising a processing unit for circulating and processing one or more cleaning-in-place agents within a cleaning-in-place circuit; and a cleaning-in-place feed line for the one or more cleaning-in-place agents, wherein the cleaning-in-place feed line being connected to a blowing-air feed line for the valves of the valve blocks; a media distributor for distributing the blowing air over the blow molding stations and for collecting the one or more cleaning-in-place agents; the valve blocks being included in the cleaning-in-place system; and a blowing-air shut-off valve provided in the blowing-air feed line of the valves of the valve blocks, wherein the blowing-air shut-off valve is configured to prevent, during a cleaning-in-place operation, at least one of the one or more cleaning-in-place agents from penetrating into a compressor for generating blowing air, and blowing air from exiting into the cleaning-in-place circuit, wherein the compressor being connected to the blowing-air feed line, and said blowing-air shut-off valve is disposed between the valve blocks and the compressor.