RIEGER ESV hygienic single-seat valves are used wherever the highest standards of productivity, safety, and quality are required. They are used in systems within the dairy, food, pharmaceutical, chemical, and biotechnology industries.
The advanced valve concept, proven thousands of times in daily operation, ensures a high level of flexibility across the individual product ranges. RIEGER ESV hygienic single-seat valves provide our customers with the ideal solution for handling liquid products.
Thanks to the modular design, the valves can be easily converted from a hygienic to an aseptic version, as well as from an air-to-open to an air-to-close configuration. The installation dimensions can also be adapted to the specific conditions on site.
| 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* for a short time |
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| Press | Closing pressure
Control air pressure |
max. 6 bar
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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