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DESIGN D 620• Product loss free switching(leakage free)• Cycling of valve disc during cleaningallows cleaning of leakage chamber• Lower valve disc radial sealRSC (Radial Seal Complete)1. Valve closed2. Valve open3. Cycling lower seat4. Cycling upper seat1. 2.3. 4.DESIGN D 630• Product loss free switching(leakage free)• No cyclic lift function• Cleaning via external flushing connection• Lower valve disc radial sealRSC (Radial Seal Complete)1. Valve closed2. Valve open3. Cleaning via flushingconnection1.3.2.DSV COMPLETE double seat valves9
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