The corrugated plate pack represent the very heart of our various purification systems consisting of a number of parallel corrugated plates (see photograph). These are framed in a housing and the whole pack is stiffened by a frame made from plastic material and/or steel. The liquid to be treated flows through the spaces between the corrugated plates. Flow through the pack is laminar thus allowing the separation to take place under ideal conditions. In addition, much attention has been given to the profile of the corrugated plates. These have been chosen so that a smooth transfer and compaction of the separated particles is effected. To promote equal and uniform supply to the plates, specially designed flow baffles are used. In order to reduce the frictional resistance between the separated material and the corrugated plates to the minimum, particular attention was paid to the smoothness and hardness of the plate surface. The corrugated plates as well as the casing are made from glass fiber reinforced isophtalacid polyester resin. This material is resistant to the most frequently used chemical additives and temperatures. For applications under more aggressive conditions bisphenolic polyester resin or another suitable material is used. For erection and inspection purposes the plate pack has been fitted with lifting eyes so that it can be easily removed from or replaced into the installation. Upon request these plates can be made of other GRP resins like Orthopthalic acid, Bisphenol and Vinyl Ester Resins. Stainless steel packs have also been supplied as a special case.