Unique-TO Tank Outlet Valve.

Concept

The exceptional concept of this mixproof valve is characterized by excellent unmatched flexibility - yet still being very simple. The modular design gives you the perfect valve for your exact needs in all mixproof tank outlet operations allowing two different products in pipeline and tank.
The body can be turned in any position if the clamp are slightly loosened. The tank flange is welded directly into the tank.
(Important! Observe welding guideline in instruction manual) The tank flange is supplied with TÜV approval AD 2000 and inspection certificate 3.1 according to EN10204.
Unique-TO offers pipe size from ISO51-ISO101.6 and DN50-150.
The design allows the Unique-TO to be installed in a horizontal position.

Working Principle

Unique is remote-controlled by means of compressed air. The valve is a normally closed (NC) valve.
The valve has two independent plug seals, forming a leakage chamber. In the leakage chamber there is only atmospheric pressure during every working condition. In case of rare accidental leaking of product, this will flow into the leakage chamber and be discharged through the leakage outlet. When the valve is open, the leakage chamber is closed. The product can then flow from tank to pipeline.
The valve is water hammer protected in the pipeline due to the balanced plug that prevent the plug from closing too fast, when closing in the direction of product flow.
The valve can be cleaned to any level according to the needs in the specific process. There is virtually no spillage of product when operating the valve.

SpiralClean

The Unique concept offers the Alfa Laval SpiralClean system to clean the balanced plug and leakage chamber, helping to meet the high hygienic standards of the sanitary industry. All external CIP systems for Unique includes the SpiralClean design as standard. Another benefit from the SpiralClean system is that it allows the Unique-TO to run under aseptic-like conditions. If you apply steam to the CIP pipes, this will form a steam barrier to the atmosphere.

Options

The Unique-TO is designed with user flexibility in mind. The customer can choose additional options as required individually; for example higher hygiene demands or higher resistance against physically tough conditions.
The modular design of Unique-TO uses parts from the Unique program. This gives you less spare parts on stock, yet providing minimal service. The valve consists of one valve body, which is connected to either a tank flange or a stub flange with a clamp.

Valve Body Combinations
Type 20		Type 30

The drawings below gives an overview of all options when choosing the valve to fit your process, thus demonstrating the actual flexibility of the Unique Mixproof tank outlet valve.

The Unique-TO concept offers balanced plug in pipe line, seat lift, CIP for the plugs and leakage chambers and any combination in between.

1	2	3	4	5

Unique-TO size flexibility

• - ISO51 and DN50 with size 3-Basic actuator
• - ISO63.5-ISO76.1 and DN65-DN80 with size 4-Basic actuator
• - ISO63.5-ISO76.1 and DN65-DN80 with size 5-Basic actuator
• - ISO101.6, DN100, DN125 and DN150 with size 5-Basic actuator
• - ISO101.6, DN100, DN125 and DN150 with size 4-Basic actuator (eg. tank filling valve)

1	2	3

Unique-TO hygienic flexibility

• - CIP in leakage chamber by use of spiral clean
• - With external CIP cleaning in sealing element by use of spiral clean
• - With external CIP cleaning in sealing element and CIP in leakage chamber by use of spiral clean

Selection guide

To assist you in the selection we have included some standard configurations:

• - Unique-TO
• - Unique-TO with external cleaning.

You can choose Unique-TO in ordering leaflet.
Unique-TO with external cleaning can only be chosen in CAS.

Unique-TO meets the typical demands of a process valve in the food and drink industry. It is also suitable for products with solids. Cleaning of the plugs and seats are performed by means of seatlift during normal cleaning procedure. This valve also includes a balanced plug in the pipeline that protect against water hammering in the pipeline when closing in the direction of product flow. Its features are: - Actuator with balanced seat lift integrated. - Standard balanced plug in pipeline. Unique-TO is the choice for standard solutions. - Unique-TO - Unique-TO long stroke (size ISO63.5-ISO76.1 and DN65-DN80)
	1	2

Unique-TO with external cleaning meets the highest demands for hygienic processing. During the cleaning process, the plugs can be lifted independently to ensure cleaning of plugs and seats together with their corresponding pipe. At the same time or separately the leakage chamber and balanced plugs can be cleaned with our SpiralClean system. It has few product wetted seals and allows no product spillage during operation. This valve is the choice for solutions requiring the highest level of hygiene and is suitable for applications with sticky products, products with high content of solids or applications where "close to aseptic conditions" is wanted. Its features are: - Actuator with seat lift integrated. - SpiralClean of leakage chamber and balanced plug Unique-To with external cleaning is the choice for highest hygienic cleaning 3. Unique-TO with external cleaning

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Technical Data

Materials

Options

• - For Control & Indication of both upper and lower seat lift as well as main movement, please refer to index in Product Catalogue.
• - 3A (Sanitary Standard) labelling on request.

Ordering

For ordering, either refer to CAS configurator or see ordering leaflet that contains article numbers for the standard valves.

Pressure drop/capacity diagrams

	Note! For the diagrams the following applies: Medium: Water (20° C) Measurement: In accordance with VDI 2173

Air and CIP Consumption

Note:

Recommended min. pressure for SpiralClean: 2 bar.

Formula to estimate CIP flow during seat lift:

(for liquids with comparable viscosity and density to water):

Q = CIP - flow (m3/h).
Kv = Kv value from the above table.
Δ p = CIP pressure (bar).

A1 + A2 = Min. installation measure to allow that actuator and internal valve parts can be lifted out of the valve body
(if ThinkTop is mounted, add 180 mm).