RIEGER hygienic double seal valves N4 are piggable or can be used for highly viscous media.
They offer reliable protection for your product by separating incompatible products in a leak-proof manner. They have proven their worth worldwide in plants in the food and beverage industry.
The design of the one-piece solid valve body and the two radial seals of both valve seats, together with the balanced valve discs, enable completely safe CIP/SIP cleaning and therefore extremely high safety for your products.
On this model, the two valve seats can be lifted alternatively.
| RIEGER double seal valves DD – piggable
The development of the RIEGER double sealing valve DD to 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 . |
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| Material | in contact with the product optional not in contact with the product |
1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 |
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| Seals | O-rings/seals | EPDM (others on request) |
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| Temperatures | maximum | EPDM | |
| Continuous operating temperature Sterilization temperature |
130 °C* 150 °C* |
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| Press | Closing pressure
Control air pressure |
max. 10 bar top. bottom line see catalog min 6 bar – |
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| Surfaces | in contact with the product optional not in contact with the product |
Ra ≤ 0.8 µm e-polished, other surfaces on request Ra ≤ 1.6 µm |
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| Connections Standard- Pipe classes |
DIN 11850-R2 (DIN 11866 A) O.D.-Tube (DIN 11866 C) DIN EN ISO 1127 (DIN 11866-B) |
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