RIEGER hygiene double seal valves N4 are piggable or applicable for highly viscous media. They provide reliable protection for your product by leak-proof separating not compatible products. They prove themselves worldwide in systems for the beverage and food industries.
The design of its one-piece valve housing and the two radial sealings of both valve seats allow, together with the balanced valve disks a perfectly safe CIP/SIP cleaning and an extremely high level of security for your products.
In this model, the two valve seats can be alternatively lifted.
The development of the RIEGER double sealing valve DD to the piggable variant N4 allows users great savings in resources.
The cost savings of product, water, cleaning agents, environmental pollution recoup the investment within a very short time.
| 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 upper line lower line see catalogue 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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