Technology Sourcebook
www.foodengineeringmag.com/articles/89797-open-type-piston-compressor

Open-type piston compressor
October 16, 2012
The GEA Bock 8-cylinder F18 open-type piston compressor has a plasma-nitrocarburized crankshaft that drives its 8 pistons. The compressor’s valve system has a cylinder head designed especially for the flow-optimized, double-ring valve plate.
GEA Group Aktiengesellschaft; www.gea.com