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RIEGER Overflow valves ÜS open the set response and thus prevent unwanted pressures in pipelines. They are available with weld ends and with dairy screwings or clamp ferrules. One possible application is the protection of forced-feed pumpsperistaltic pumps.
The overflow valve US is suitable for all liquid media.
Overflow valves are no safety valves.
For this purpose we recommend the TÜV certified safety valve type SH.
| 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 |
O-rings/gaskets | EPDM, FKM (others on request) |
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| Temperatures | maximum | EPDM | |
| continuous operation
steam sterilization |
130 °C*
150 °C* short-time |
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| Set range |
In order set pressure point is requested, pressure spring is chosen accordingly. |
0,5 bar – 6 bar
higher set pressures upon request |
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| Set pressure range of pressure spring |
according to customer’s request in lower or upper pressure range |
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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 |
DIN 11850-R2 (DIN 11866 A) O.D. tube (DIN 11866 C) clamp ferrules in DIN and Inch |
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