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RIEGER hygiene 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 further development of the RIEGER double seal valve DD to the piggable version N4 offers the user great potential for saving resources. The costs saved on product, water, cleaning agents and environmental pollution amortize the investment within a very short time. |
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| Material | product touched 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. Lower cable see catalog min 6 bar – |
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| Surfaces | product touched 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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