RIEGER hygiene double seat valve N1 provide reliable protection for your product by leak-proof separating not compatible products.
For years, they are invaluable in plants of beverage and brewing industry, the pharmaceutical industry as well as the food and dairy industry.
The design of its one-piece valve body and the radial sealing of both valve seats along with the balanced valve disks enable a perfectly safe CIP/ IP cleaning, thus ensuring extremely high security for your products
| Material | product contact optional not product contact | 1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 | |
| Seals | O-rings/gaskets | EPDM | |
| Temperatures | maximum | EPDM | |
| operating temperature sterilisation temperature | 130 °C* 150 °C* short-time (approx. 20 min) | ||
| Operating pressure | closing pressure control air pressure | max. 10 bar 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) | ||
variants
 |  |  |
| N1.0 seat lift up and down | N1.1 without seat lift flushable | N1.2 seat lift up and down sterializable |
reduced housings
 |  | |
| Typ 150 = upper big - lower small | Typ 200 = upper small - lower big |
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