The reliable separation of two process lines is achieved via the CIP/SIP capable leakage chamber of the RIEGER-double seat valve N7 (also called double chamber valve. The CIP/SIP valves control the steam inlet and condensate outlet at the leakage space.
The excellent aseptic properties are achieved by the hermetic separation of the ambient.
Rieger relies in the fruit sector e.g. yoghurt with strawberries not on the metal bellows, but on the PTFE-metal combi bellows which connects the durability of the PTFE bellows (more than 1 million cycles) with the erosion-free sealing technology of the O-ring!
This type of valve is available not only for pipes, but also for tank attachment .
This valve is indispensable in aseptic valve clusters and aseptic filling machines, in which the highest value is placed to comprehensive product safety.
| Material | product contact optional not product contact | 1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 | |
| Seals | PTFE bellows metal bellows O-rings/gaskets | PTFE 1.4571/1.4404 EPDM | |
| Temperatures | maximum | EPDM | PTFE |
| operating temperature sterilisation temperature | 130 °C* 150 °C* | 121 °C* 135 °C* short-time (approx. 20 min) | |
| Operating pressure | closing pressure control air pressure | max. 6 bar in the pipe max. 4 bar in the tank min 6 bar - max. 10 bar | |
| Surfaces | product contact optional not product contact | Ra <= 0,8 µm e-polished, other surfaces on request Ra <=1,6 µm | |
| Connections Standard- pipe classes | DIN 11850-R2 (DIN 11866 A) O.D.-Tube (DIN 11866 C) | ||
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