Special valves & tank safety systems
Hygienic vacuum valves are used to secure lines in processing plants against impermissibly occurring vacuums (e.g. after sterilization).
| Item | Sizes |
| Sealing material | EPDM |
| Surface quality in product area | Ra ≤ 0.8 |
| Material quality in product area | AISI 316L |
| Operating temperature | -20...+150°C |
| Other materials and higher surface qualities are available upon request. | |

VARIVENT® vacuum valves are designed to hygienically protect tanks against vacuums. A protection is already ensured when a vacuum surpasses -2.5 mbarÜ. To minimize the cleaning effort and to protect the valve disc against conglutination, the seat ring is non-stick coated.

Hygienic steam inlet valves are used for the monitored supply of steam in containers or tanks.

Back-pressure valves of the Aseptomag® valve line are characterized by their uncompromising stainless steel bellow design.

Overflow Valves Type Q series VARIVENT® are generally used as pressure relief valves in pipelines.
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