Back-pressure Valves Aseptomag® GD

Aseptic single-seat back-pressure valves are used to regulate a pre-defined pressure in UltraClean and Aseptic processing plants.

The desired product pressure is reached by supplying compressed air to the pneumatic actuator. A welded stainless steel bellow 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 security. Back-pressure valves are commonly used in pasteurization and sterilization plants.

Main Components

Housing
Housings for back-pressure valves are available with two or three port connections. The valves are produced with standard butt-weld connections by default. Mixed port connection sizes can be delivered upon request as well as various aseptic pipe connections.

Internal Assembly
The internal assembly is available with or without a shrunk or screwed valve seat seal. In addition to the standard sealing material Tefasep®, other material options (PTFE, EPDM, Viton® etc.) are available.

Actuator
Aseptic back-pressures valves are equipped with an air-closing / air-opening (LL) pneumatic actuator.

Clamp
Due to its solid construction, the 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 back-pressure valves can be either equipped with open feedback units or T.VIS® control tops by default. Feedback units from third party suppliers can be mounted via specially designed adaptors.

Technical Data

 
Item Size
Nominal pressure valve 10 bar
Closing pressure 0 – 6 bar
Control air pressure 0 – 6 bar
Internal Assembly With sheet metal bellow
Valve seat seal material Tefasep®
Control cone Linear
Surface quality in product area Ra ≤ 0.8
Material quality in product area AISI 316L
Operating temperature -20…+150°C
Application Suitable for applications with caustic or toxic products

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Aseptomag® Valve Technology

Double-chamber valve Aseptomag® AXV – valve matrix

Aseptomag® aseptic valves are designed to meet the highest demands for aseptic processes in the dairy, food and beverage industry.

Double-chamber valve Aseptomag® DK – valve matrix with T.VIS® control tops

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.

Aseptic Applications

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.

Aseptomag® at a Glance

  • Hermetic sealing by stainless steel bellows
  • Uncompromising detection possibilities
  • Highest aseptic standard
  • Easy and safe maintenance
Double-chamber valve Aseptomag® DK – valve matrix

Sizes *

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

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