Alfa Laval Unique Mixproof Valves enable simultaneous flow of two products or fluids through the same valve without risk of cross-contamination. The exceptional spillage free operation is compliant with most hygienic standards.
The modular concept of these shut-off valves enables you to tailor them to your specific requirements and only pay for features and capabilities you need. You get the full benefit of the Unique Mixproof Valves by combining them with the Alfa Laval ThinkTop v70 sensing and control units.
The Alfa Laval Unique Mixproof Valve is a versatile, highly flexible double block-and-bleed valve for the safe and efficient management of fluids at intersection points in matrix piped systems. The valve enables the simultaneous flow of two different products or fluids through the same valve without the risk of cross-contaminations. Modular design and a wide variety of options enable the valve to be customized to meet any process requirement – whether higher demands on cleanability and the ability to withstand pressure peaks.
Application
The Alfa Laval Unique Mixproof is designed for continuous flow management and process safety in hygienic processes where product safety is at the top of the agenda across the dairy, food, beverage and many other industries.
Standard Design
The Alfa Laval Unique Mixproof Valve is compromised of a series of base components, including valve body, valve plug, actuator, and cleaning options and accessories that support a wide range of applications. There are four pre-configured versions: the Unique Mixproof Basic; the Unique Mixproof SeatClean Valve; the Unique Mixproof HighClean Valve; and the Unique Mixproof UltraClean Valve. Leakage detection holes enable visual inspection without requiring valve disassembly and provide advance notification of parts wear. Few straightforward moveable parts contribute to reliable operation and reduced maintenance costs. The valve can also be fitted with the Alfa Laval ThinkTop V50 and V70 for sensing and control of the valves.
Working Principle
The Alfa Laval Unique Mixproof Valve is a normally closed (NC) valve controlled from a remote location by means of compressed air. The valve has two independent plugs and seals to separate the liquids; the space between the seals forms a leakage chamber at atmospheric pressure during every working condition. Leakage rarely occurs but, should it occur, product flows into the leakage chamber and exits through the bottom outlet for easy detection.
When the valve is open, the leakage chamber is closed. The radial design of the valve ensures the that virtually no product spillage occurs during valve operation. It is possible to adept valve cleaning and water hammer protection to the requirements of individual process specifications.
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.
Benefits
- Enhanced product safety
- Cost-effective, spillage-free operation
- Optimized plant efficiency and enhanced cleanability
- Leakage detection and leakage chamber cleaning
- Fully configurable to fit your exact needs.
Construction
The unique mixproof valve concept is based on a series of base components, including valve body, valve plug, actuator and cleaning options and accessories that support a wide range of applications. By using these components, a Unique Mixproof Valve can be built to match the exact process requirements.
To facilitate maintenance, the Unique Mixproof Valve also features leakage detection holes that provide advance notification of wear or damage to static o-rings. Operators can visually inspect the valve at any time without having to disassemble it.
SpiralClean System
To ensure the hygienic operating condition of its Unique Mixproof Valve range, Alfa Laval offers its SpiralClean system to clean the upper and lower balanced plugs and leakage chamber of the valves. Using less cleaning fluid, utilities and time, SpiralClean cleans more thoroughly and efficiently than conventional externally connected CIP devices. All external CIP devices for Unique Mixproof Valves include the SpiralClean design as standard.
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.
Options
- 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 or ThinkTop Basic.
- Side indication for detection of upper seat lift.
