Unique Mixproof | Alfa Laval

Unique Mixproof

Unique mixproof valves enable the simultaneous flow of two different products or fluids through the same valve without risk of cross-contamination.

阿法拉伐Unique防混阀-Alfa Laval Unique Mix Proof Valve

Cost effective mixproof valve

Alfa Laval Unique mixproof valves feature two independent plugs, which means that a single Unique mixproof valve can often replace two or more valves of other types.

Exceptional spillage-free operation 

A state-of-the-art double-seat design provides long-lasting, spillage-free operation thus minimizing the risk of product contamination. The use of double lip seals provides added protection to ensure safe and hygienic operation.

Easy valve to maintain and clean

Unique mixproof valves feature a top-loaded design, making maintenance fast and easy. It also features no adjustable components, a maintenance-friendly actuator and built-in leakage detection on all seals. Unique mixproof valves meet most hygienic standards and can be supplied with the optional SpiralClean cleaning system.

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You get the full benefit of using Unique mixproof valves by combining them with Alfa Laval ThinkTop and ThinkTop Basic valve sensing and control units.

Valve clusters - customized flow solutions 

We are specialists in providing pre-built valve clusters customized to meet specific, individual requirements.
Our expertise helps ensure you the most efficient flow management, using as few components as possible and dealing effectively with key issues that include thermal cycling, cleanability, drainability and flow control.
Alfa Laval valve clusters can be supplied pre-assembled and pre-tested as well as fully wired and with all the necessary pneumatic tubing, junction boxes and control panels pre-connected.
This means you can bring even complex installations online as quickly as possible, saving time and avoiding lost revenue associated with on-site troubleshooting and downtime. 

For more information, please refer to Documentation and to the Selection Guide.

For cost-effective alternatives to the Unique mixproof valve range, Alfa Laval also offers standard SMP mixproof valves. 


Product Benefits

  • Cost effective
  • Minimizing the risk of product contamination
  • Making maintenance fast and easy



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Unique mixproof valve range

The Alfa Laval Unique mixproof valve concept provides modular solutions that you can easily tailor to your specific requirements. This means you only pay for the exact features and capabilities you really need. To make selection easier, a series of Unique Mixproof valve versions is available.


Unique Mixproof UltraPure

Unique Mixproof UltraPure w ThinkTop V70 50x89.jpg Unique Mixproof UltraPure valve is devolved and designed meet the stringent demands of the biotech- and pharmaceutical industries. This valve solution ensures a higher degree of plant flexibility resulting in optimized plant efficiency without compromising product safety. Customers have several options to fit individual needs; e.g. higher alloys to improve corrosion resistance. Like all our UltraPure equipment, Unique Mixproof UltraPure comes with the Alfa Laval Q-doc documentation package.


 Unique Mixproof Basic

Unique Mixproof Basic w V50_72x89.jpg Unique Basic has the basic components that provide significant safety and leakage detection. It features an actuator without seat lift and unbalanced plugs.


Unique Mixproof SeatClean

Unique Mixproof SeatClean w ThinkTop V70_72x89.jpg Unique SeatClean is the choice for standard installations that handle products with solids. Seat lift during normal cleaning procedures cleans the plugs and seats. A balanced lower plug eliminates the risk of mixing products by pressure shock or when the pressure in the pipe is high.

Unique Mixproof HighClean

Unique_Mixproof_High_Clean_w_ThinkTop_V50_72x89.jpg Unique HighClean meets your processing needs when dealing with sticky products. SpiralClean ensures thorough cleaning of the spindles, upper and lower plugs and in the leakage chamber. With balanced upper and lower plug, the configuration of this valve protects against the effects of high pressure and water hammer.

Unique Mixproof UltraClean

Unique_Mixproof_Ultra_Clean_w_ThinkTop_V70_72x89.jpg Unique UltraClean meets the highest demands for hygienic processing of sticky products, products with high content of solids, or applications that require close-to-aseptic conditions. It features an actuator with integrated seat lift, balanced upper and lower plugs and SpiralClean.

Så fungerar det


Unique Mixproof-ventilkonceptet baseras på en serie baskomponenter, bland annat ventilhus, ventilplugg, styrdon samt tillval och tillbehör för rengöring som stöder många olika användningsområden. Med hjälp av dessa komponenter kan du skapa en Unique Mixproof-ventil som matchar dina exakta processkrav.

För att underlätta underhållet innehåller Unique Mixproof-ventilen även hål för läckagedetektering som gör att slitage eller skador på statiska o-ringar kan identifieras i tid. Operatörerna kan när som helst visuellt inspektera ventilen utan att behöva plocka isär den.


Alfa Laval Unique Mixproof-ventilen är en normalt sluten ventil som kan fjärrstyras med tryckluft.

För att separera de två vätskorna har ventilen två oberoende pluggtätningar. Utrymmet mellan de två tätningarna bildar en atmosfärisk läckagekammare. I sällsynta fall av oavsiktligt produktläckage, rinner produkten in i läckagekammaren och släpps ut genom läckageutloppet.

När ventilen är öppen är läckagekammaren stängd. Produkten kan sedan rinna från en ledning till den andra utan spill. Ventilen kan enkelt rengöras och skyddas mot följderna av tryckslag i enlighet med processens specifika krav och ventilens konfiguration. (Det spills ingen produkt när ventilen används).

SpiralClean system

Alfa Laval offers its external connected CIP system "SpiralClean". This system ensures hygienic operation in demanding applications where cleaning of the Unique Mixproof by seat lift and seat push function is not sufficient. The SpiralClean system can be added to clean the upper and lower plugs and to rinse the leakage chamber of the valve. Using less cleaning fluid, utilities and time, SpiralClean cleans more thoroughly and efficiently than conventional externally connected CIP devices.

Another big benefit: SpiralClean enables the Unique mixproof valve to operate under aseptic-like conditions, creating a steam barrier to the atmosphere upon applying steam to the CIP pipes.unique-mixproof-spiral-clean-640x360.png


    • 3-A version available upon request
    • Product wetted seals HNBR, NBR or FPM
    • Male parts or clamp liners in accordance with required standard
    • Control and indication: ThinkTop V70
    • Indication for detection of upper seat lift

360° Service- och underhållsvideor

Alfa Laval Unique Mixproof-ventiler – byta ut en axiell tätning

Alfa Laval Unique Mixproof-ventiler – byta ut en radiell tätning

Alfa Lavals Unique Mixproof-ventiler – byta ut produktberörda tätningar