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The Overflow Valves Type ER by Rieger are based on the design of the Type E8 and are the „Reverse Acting“ line within Rieger’s Overflow Valves. These Overflow Valves Type ER can be opened pneumatically for CIP cleaning. You can also adjust the set pressure in the possible pressure range manually. This valve type with its body configuration is used to secure pumps with a bypass tube line.
| 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 (others on request) | |
| Temperatures |
maximum | EPDM | |
| continuous operation
steam sterilization |
130 °C*
150 °C* short-time |
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| Pressures | possible set pressure for O-ring version |
0,5 – 10 bar (other pressures on request) | |
| set pressure range dependent on installed pressure spring |
Requested set pressure required in purchase order | ||
| air pressure | min. 6 bar – max. 10 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 |
DIN 11850-R2 (DIN 11866 A) O.D.-Tube (DIN 11866 C) DIN EN ISO 1127 (DIN 11866-B) |
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