A welded stainless steel bellows is used to hermetically seal the product area from outside contamination. This special design and the durable valve seat seal, made of Tefasep®, enables optimum process and product safety.
Housing
A divert valve contains two housings. The lower housing is available with two or three port connections and the upper housing with one or two port connections. The valves are produced with standard butt-weld connections by default. Mixed port connection sizes as well as various aseptic pipe connections are available upon request.
Internal Assembly
The internal assembly includes two valve seat seals by default. Valve seat A can be executed either with a shrunk or screwed valve seat seal, whereas valve seat A is divisible by default. In addition to the standard sealing material Tefasep®, other material options such as PTFE and EPDM are also available.
Actuator
The standard version of the pneumatic actuator is designed as spring-closing / air-opening (NC). Other available options are: air-closing / spring-opening (NO) and manual drive with crank handle (H).
Clamp
Due to its solid construction, the GEA Aseptomag® clamp enables a pressure stable and safe connection of the main components. The special design with three segments allows a service-friendly handling of the component, even under tight space conditions.
Feedback units
Aseptic divert valves can be either equipped with open feedback units or T.VIS® feedback systems by default. Feedback units from third party suppliers can be mounted via special adaptors.
| Item | Size |
| Nominal pressure valve | 10 bar |
| Closing pressure | 5 - 6 bar (depending on valve size) |
| Control air pressure | 6 bar |
| Hermetic sealing element | Stainless steel bellows |
| Valve seat seal material | Tefasep® |
| Housing seal | Silicone |
| Surface quality in product area | Ra ≤ 0.8 |
| Material quality in product area | AISI 316L / AISI 316Ti |
| Max. operating temperature | 150 °C (302 °F) |
| Max. sterilization temperature | 160 °C (320 °F) for max. 30 min. |
Aseptomag® aseptic valves are designed to meet the highest demands for aseptic processes in the dairy, food and beverage industry.
Aseptic bellows valves distinguish themselves with the uncompromisingly hermetic seal of the valve stem, thereby minimizing contamination risks and maximizing detection possibilities. The Aseptomag® valve line is the equivalent for aseptic processes to the hygienic VARIVENT® valve line and provides everything from shut-off and bottom-seat to mixproof and sampling valves. The valves meet the highest hygienic standards required, such as EHEDG and 3-A standards. Thanks to the modular structure, the Aseptomag® valve line also allows tailor-made valve solutions for specific process requirements (higher closing pressures, special materials, special design, etc). Aseptomag® valves can be equipped with T.VIS® control tops and can therewith seamlessly be integrated into an automated process plant.
For aseptic processes, the following areas have to be considered: Product sterilization, conveying and maintaining sterility, and filling under sterile conditions. Aseptic processes signify high-quality products and/or long shelf-life, produced for specific consumer groups. Besides classic UHT milk products, medical nutrition, baby food, aseptically produced beverages and applications within biotech belong to this hygienic class.
| Valve type | Metric | Inch OD |
| Shut-off Valves Aseptomag® AV | DN 15 – DN 150 | 0.75” – 6” |
| Shut-off Valves Aseptomag® AVBS | DN 15 – DN 150 | 0.75” – 6” |
| Divert Valves Aseptomag® UV | DN 15 – DN 100 | 0.75” – 4” |
| Shut-off Valves Aseptomag® AF | DN 25 – DN 100 | 1” – 4” |
| Control Valves Aseptomag® RV | DN 15 – DN 100 | 0.75” – 4” |
| Control Valves Aseptomag® RVIN | DN 25 – DN 65 | 1“ – 2.5“ |
| Back-pressure Valves Aseptomag® GD | DN 15 – DN 150 | 0.75” – 6” |
| Shut-off Valves Aseptomag® AMV | DN 06 – DN 10 | 0.25” – 0.5” |
| Leakage Valves Aseptomag® LV | DN 40 – DN 100 | 1.5“ – 4“ |
| Leakage Valves Aseptomag® DT | DN 40 – DN 100 | 1.5“ – 4“ |
| Leakage Valves Aseptomag® ADV | DN 25 – DN 100 | 1” – 4” |
| Double-chamber Valves Aseptomag® DK | DN 25 – DN 150 | 1” – 6” |
| Double-chamber Valves Aseptomag® DKBS | DN 25 – DN 150 | 1” – 6” |
| Double-chamber Valves Aseptomag® DDK | DN 25 – DN 150 | 1” – 6” |
| Double-chamber Valves Aseptomag® AXV | DN 25 – DN 150 | 1” – 6” |
| Sampling Valves Aseptomag® PV | DN 10 – DN 15 | 0.5” – 0.75” |
| Steam inlet valves Aseptomag® DE | DN 25 – DN 40 | 1” – 1.5” |
| * Additional valve sizes and connection standards (i.e. ISO) available upon request | ||
