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RIEGER ESV Single Seat Valves are used, when a maximum level of productivity, safety and quality is requested. They are found in production plants of the dairy industry and the food industry, the pharmaceutical and the chemical industry and biotechnology.
The advanced valve concept, proven a thousand times in daily use guarantees high flexibility within the individual series.
RIEGER-ESV-hygienic-single seat valves guarantee our customers the perfect problem solution for their liquid products.
Thanks to the modular system, the switch from hygienic- to aseptic-design, from “air-opening” to “air-closing” is possible without any problems. The construction measures can also be adapted to the conditions on site.
| Material | in contact with product optional not in contact with product |
1.4404/AISI316L 1.4435/AISI316L 1.4301/AISI304 |
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| Gaskets
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O-rings/gaskets | EPDM (others on request) |
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| Temperatures | maximum | EPDM | |
| continuous operation
steam sterilization |
130 °C*
150 °C* short-time |
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| Pressures |
closing pressure
air pressure |
max. 6 bar
min 6 bar – |
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| Surfaces |
in contact with product optional not in contact with product |
Ra ≤ 0,8 µm e-polished, other surfaces on request Ra ≤1,6 µm |
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| Connections Standard- pipe classes
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DIN 11850-R2 (DIN 11866 A) O.D.-Tube (DIN 11866 C) DIN EN ISO 1127 (DIN 11866-B) |
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