The “MIXED MEMBRANE PACK”, composed of a membrane plate and a combined plate called “Companion”, is often used for special filtration processes with washing and / or drying phases of the cake. The procedure of the operation is identical to the system “FULL MEMBRANE”. | For this combination system of MEMBRANE & COMPANION filter plates, the application of the filter cloth can be made or in the traditional way or with the method of half filter cloth locked by polypropylene clamping ring at the filter plate’s feeding hole itself. |