The Unique Mixproof Tank Outlet has the same basic advantages as the other ranges of the unique mixproof valves but specially designed for mounting directly on the tank wall at the inlets and outlets. For tank inlet and outlet applications, the unique mixproof tank outlet (TO) valve offers full drainability and provides cleanability all the way up to the tank without any risk of cross contamination.
The Alfa Laval Unique Mixproof Tank Outlet (TO) 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. Specially designed for mounting directly on the tank bottom or wall at the inlets and outlets, the valve enables the safe handling of two different products or fluids through the same valve. It provides full drainability and cleanability all the way up to the tank – without any risk of cross-contamination. Modular design and a wide variety of options enable the valve to be customized to meet any process requirement for all mixproof tank outlet operations allowing two different products in pipeline and tank.
Application
The Alfa Laval Unique Mixproof TO Valve is designed for continuous flow management and process safety in hygienic tank inlet and outlets across the dairy, food, beverage and many other industries.
Standard Design
The Alfa Laval Unique Mixproof TO Valve is comprised 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 two versions; the Unique Mixproof TO Valve and the Unique Mixproof TO Valve with external cleaning. It is possible to install the Unique Mixproof TO in a horizontal position.
The valve body is connected either to tank flange or a stub flange with a clamp and can be turned in any position upon loosening the clamp slightly. Supplied with TUV approval AD 2000 and inspection certificate 3.1 according to EN10204 , the tank flange is welded directly into the tank.
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 AlfaLaval ThinkTop V50 and V70 for sensing and control of the valve.
Working Principle
The Alfa Laval Unique Mixproof TO 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 product then flows form the tank to the line. The radial design of the valve ensures that virtually no product spillage occurs during valve operation. It is possible to adept valve cleaning to the requirements of individual process specifications.
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
Cost effective tank outlet mixproof valve
Alfa Laval Unique Mixproof TO valves feature two independent plugs. It is the choice for hygienic installations enabling safe filling or emptying of tanks.
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. By combining the Unique mixproof valves with the Alfa Laval ThinkTop and ThinkTop Basic valve sensing and control units, the full benefit of the system would be gained by the applications.
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. Using these components, a Unique mixproof valve can be built to meet your 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 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.
