The Alfa Laval Unique Mixproof Horizontal Tank Valve is a versatile, highly flexible double block-and-bleed valve for safe and efficient management of fluids at intersection points in matrix piped systems.
To improve the cleanliness of the horizontal tank connections. It ensure that no area of the tank inlet or tank outlet is left uncleaned, it is specifically designed for horizontal mounting on the side of a tank or as a space-saving alternative at the bottom of a cone-formed tank. Its self cleaning design provides state-of-the-art cleanability in the shadow area, where no Cleaning-In-Place (CIP) pressure or flow from the tank side to clean the connection.
Based on the proven and versatile Alfa Laval Unique Mixproof Valve, the Unique HT Mixproof Valve enables the benefits of having two different products or fluids in the same valve without any risk of cross contamination. The valve provides greater flexibility by filling and emptying a tank at the same time.
Application
The Alfa Laval Unique HT Mixproof Valve is designed for continuous flow management and process safety for horizontal tank inlet and outlet applications across the dairy, food, beverage and many other industries.
Standard Design
The Alfa Laval Unique HT Mixproof Valve is comprised of a series of base components, including valve body, valve plug, actuator, seat lift and two patented Cleaning-In-Place (CIP) nozzles.
The double tangential design of the valve body ensures full drainability in any position, when mounted at the bottom of a cone-shaped tank or on the side. The design of the single valve body makes it suitable to weld directly on the tank or to connect it using a tri-clamp. There are three sizes: 2 1/2″, 3″ and 4″. The 4″ model features a 45-mm opening, which enables the passage of large particles or efficient handling of high viscosity fluids.
The valve is self cleaning, thanks to two patented CIP nozzles. The first nozzle is designed specifically for plug cleaning. This double-acting nozzle projects cleaning media through the tank connection, ensuring complete cleaning of the seat contact surfaces as well as the shadow area of the tank port. The second is a rotating CIP nozzle incorporated into the unit for optimum cleaning of the full-bore leakage chamber.
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 valve.
Options
- 3-A version available.
- 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.
Benefits
- Enhanced product safety, cleanability and operating efficiency.
- Spillage-free operation with leakage detection and leakage chamber cleaning.
- Easy maintenance and parts replacement.
- Low total cost of ownership.
- Capable of cleaning shadow areas in tank connections.
State-of-the-art horizontal mixproof valve
Based on the well proven and exceptionally versatile principle of the Unique Mixproof Valve, this horizontal mixproof tank valve features many of the same components, such as the actuator, yoke and seals, and therefore the same spare parts. This provides the benefits of easy serviceability and low total cost of ownership.
Alfa Laval Unique Mixproof Horizontal Tank Valve, can be fitted with any level of sensing and control. It is as standard supplied with seat lift, which enables handling of two different products at the same time, or safe handling of one product while seat-lift cleaning operations are being conducted in the other portion of the valve – all without any risk of cross-contamination. The double tangential design of the valve body ensures full drainability, especially when the valve is mounted at the bottom of a flat-bottomed tank.
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.
Valve clusters – customized flow solutions
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. Alfa Laval are specialists in providing pre-built valve clusters customized to meet specific, individual requirements. Its expertise helps you ensure 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. 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.
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 cleaning devices.. All external CIP systems 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.
Working Principle
The Alfa Laval Unique HT Mixproof Valve is a normally closed (NC) valve controlled from a remote location by means of compressed air. The valve has two independent plugs 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 leaks 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 from one line to the other. The radial design of the valves ensures 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.
