The use of plastic rotors in demountable rotary valves has proven to be a viable solution to eliminate metal contact, which can occur with full stainless steel construction..

GEA Nu-Con MAP

However, plastic rotors are not suitable for all applications, such as abrasive or high temperature products, or for CV applications that require stainless steel rotors to be used.

For applications that involve abrasive materials or high temperatures (and limited tolerances), GEA has developed a special monitoring device to manage the potential risk of rotor scraping.

The robust Generation 3 RDS has been specifically designed to meet CIP requirements. The Generation 3 assembly uses longer life bearings in the rotary valve unit and a solid stainless steel — serviceable — rotor. Retrofitting existing Generation 1 and Generation 2 RDS systems and/or RDS-free rotary valves is also possible.

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