Unique SSV Two Step
The Alfa Laval Unique SSV Two Step is a versatile, reliable pneumatic single seat valve with a single contact surface between the plug and the seat to minimize the risk of contamination. Its compact, modular and hygienic design meets the highest process demands in terms of hygiene and safety
For use in dosing, two-stage filling or for draining of two pipes at the same time
- Exceptional valve hygiene and durability
- Superior cleanability – smooth inner valve body without crevices
- Extended seal life due to defined seal compression
- Enhances product safety due to static seal leak detection
- Protection against full vacuum due to double lip sea
Built on the well-proven Alfa Laval Unique SSV platform, it is ideal for dosing and two-stage filling to ensure an exact volume or for draining of two pipes at the same time while reducing the risk of pressure shocks. Adjustable lifting height makes it possible to match specific volumes and quantities. Few moving parts ensure easy dismantling, high reliability and low maintenance costs. A wide range of optional features enables customization to specific process requirements. The Unique SSV Two Step is designed for dosing and filling in a broad range of hygienic applications across the dairy, food, beverage, brewery and many other industries.
Versatile and reliable single seat valve
Alfa Laval Unique single seat valves (SSVs) are robust and reliable pneumatic seat valves that are supremely reliable and versatile.
Modularity provides cost-effective and nearly endless possibilities for purpose-built seat valves that meet high standards of hygiene and aseptic compatibility. Configure the Unique SSV valve bodies, plugs and actuators to meet virtually any requirement.
Our Selection Guide illustrates the many combinations of features and types available with the Unique SSV valve range.
Superior valve process safety
The Unique SSV range is built on a proven modular platform used on more than a million valves in service worldwide. Pressed from a single stainless steel disc, the valve body is extremely strong and durable, thus ensuring production safety. The enhanced performance of the actuator makes operation safer and more efficient.
Exceptional valve hygiene
The Unique SSV range is engineered to provide excellent hygiene and cleanability. With a surface finish of Ra ≤ 0.8μm, the smooth, weld-free valve body eliminates crevices that can trap bacteria. The design of the plug supports enhanced cleaning-in-place capabilities, and a double-acting lip seal that minimizes any risk of cross-contamination.
Alfa Laval Unique SSV valves meet most hygienic standards requested in the dairy, food and beverage, and personal care industries. The Unique SSV range is EHEDG-certified and authorized to carry the 3-A symbol. The range also provides full traceability in compliance with the EU Food Regulation 1935/2004.
Please refer to Documentation for more information.
Greater valve durability
To ensure high sealing quality, the Unique SSV range features defined compression of the O-rings with metal-to-metal contact between plug and seat. This significantly reduces wear and extends valve service life. The standard Unique SSV is supplied with a semi-maintainable actuator that has a five-year warranty.
Low total cost of ownership
Thanks to its straightforward, reliable design, the Unique SSV range provides long service life, reduced product loss, greater product safety and more processing uptime. Few moving parts reduce service requirements and inventory costs. More effective CIP procedures with reduced cleaning cycles and, subsequently, the reduced use of cleaning fluids, water and utilities also contribute to the Unique SSV’s low total cost of ownership.
Construction
The Alfa Laval Unique SSV range consists of one, two or three valve bodies, plug, sealing, actuator and clamp ring.
Product Benefits
- Robust and reliable pneumatic seat valves
- Cost-effective
- Extremely strong and durable
How it works
Operating principle
The Alfa Laval Unique SSV is an air-operated seat valve that is remotely operated by means of compressed air. The valve generally has two working ports for air supply in and for process air supply; for changeover valves, a third port is required.
Unique valve body
Options
- Fully maintainable actuator
- High-pressure actuator
- Product wetted seals in HNBR or FPM
- TR2 plug seal in PTFE for special applications
- Valve sensing and control devices, incl ThinkTop, ThinkTop Basic and IndiTop
- Fittings in accordance with required standard
- External surface finish 3-A bright
360° Service and maintenance videos
Alfa Laval Unique single seat valves - maintainable actuator
Alfa Laval Unique single seat valves – replace actuator bushing
Alfa Laval Unique single seat valves – product-wetted seals
Alfa Laval Unique single seat valves -replace product-wetted seals
Save water with ThinkTop
Do something good for the environment and save up to 95% in CIP liquid when cleaning your valves. Innovations like ThinkTop sensing and control units make more efficient use of resources while safeguarding process hygiene. Add ThinkTop to your valves to optimize your processes.
Part of a broad Single Seat valve range
Alfa Laval offers a comprehensive range of valves intended for hygienic applications in various industries including dairy, food, beverage,home care, personal care, biotechnology and pharmaceuticals:
For a broader valve range, explorer the different Alfa Laval valves: ball valves, butterfly valves, control/check valves, diaphragm valves, double seal valves, double seat valves, regulating valves, safety valves, sample valves and shutter valves.
Ten top tips - Valves
Here are some tips and service videos to show how you keep your hygienic valves in tip top condition
Food Logic
Alfa Laval's hygienic equipment combines high performance with gentle handling to preserve sensitive ingredients and keep up with the food industry trends. The equipment addresses four key challenges; supplying food products to consumers at a competitive price, getting the most from raw materials, reducing waste and emissions, and delivering safe and hygienic food products.
Close at Hand Catalogue
Alfa Laval's hygienic equipment product catalogue "Close at hand" includes product leaflets, performance curves, links to animations, brochures and lists for ordering purposes.
CAD portal
Download the product models in Neutral or Native CAD file formats. It is also possible to download 3D PDF files.
Animations
Visit the animations site and take a look inside a product to see and understand how it works.