SB Anti Vacuum Valve
Alfa Laval SB
Anti Vacuum Safety Valve
The Alfa Laval SB Anti-Vacuum Valve is a compact safety solution that protects tanks from collapse or implosion caused by internal vacuum conditions. These conditions can develop during operations such as tank emptying, cool rinsing after hot cleaning, or caustic cleaning in a CO2 environment.
With its easy-to-clean design and compatibility with any closed process tank, the Valve improves safety, reliability, and performance in critical operations, ensuring maximum uptime. It is designed for use in hygienic process tanks in the Brewery, Dairy, Food, Beverage and Distilling industries, among many others.
SB Anti Vacuum Valve Benefits
- Low initial of investment
- Easily fits onto the top of any closed tank
- High quality stainless steel surface finish (Ra ≤ 0.8μm)
- Conforms to PED 97/23/EC requirements
- Traceability certification available upon request
Nominal size
100 mm
150 mm
200 mm
250 mm
300 mm
400 mm
Opening Pressure Range
50 – 500 mm H2O
25 – 500 mm H2O
25 – 500 mm H2O
25 – 300 mm H2O
25 – 500 mm H2O
25 – 100 mm H2O
Allowable Pressure PS
6 bar
6 bar
6 bar
4 bar
4 bar
4 bar
Materials
Product wetted steel parts: EN 1.4404 (AISI 316L) with 3.1 cert.
Product wetted steel surfaces: Surface roughness Ra<0.8 µm
Product wetted seals: EPDM/NBR
Product wetted polymers: PEEK
Other steel parts: EN 1.4307 (AISI 304L)
SB Anti Vacuum Valve Technical Data
Download the Full
Specification Sheet
How the SB Anti Vacuum Valve Works
The Alfa Laval SB Anti-Vacuum Valve is equipped with a counterweight, preset and secured to match the specific vacuum level needed for the tank or vessel’s design pressure. If the vacuum inside the tank falls below this set threshold, the valve opens, allowing atmospheric air to flow in.
Operating Principle
The Anti Vacuum Valve is used to minimise the risk of implosion of tanks exposed to vacuum e.g. during emptying, cool-rinsing after hot-cleaning or caustic cleaning in a CO2 atmosphere. The Anti Vacuum Valve can be fitted on any closed tank. The Valve can be equipped with a Force opener and a CIP device for extra cleaning.
Cleaning-in-Place (CIP)
When closed, the Anti Vacuum Valve is cleaned by the tank cleaning head, but this will not include the Valve seating.
SB Anti Vacuum Valve Product Documents
Recent Success Story
Helping a Home and Personal Care Company Boost Growth by 21%
When the Dutch packaging company Kompak Nederland BV wanted to build a sustainable state-of-the-art factory for co-making and co-packing 15,000 tons of home and personal care products a year, they enlisted the help of Alfa Laval for equipment supply and engineering services.
Extend the performance of your Valves
SB Anti Vacuum Valve Servicing & Maintenance
The Alfa Laval Valve technologies are designed for a wide range of duties across the Dairy, Food, Beverage, Personal Care, Biotechnology and Pharmaceutical industries.
Related Industries
The technologies we supply improve sustainability through enhanced efficiency, reducing waste and emissions, while increasing yields and end product quality.
Alfa Laval provide high-performance components to maximise efficiency in applications across the Dairy industry, from yoghurts and cheeses to milk, cream and butter.
Alfa Laval’s range of solutions are centred around increasing output while minimising contamination and enhancing efficiency,
making them ideal for applications in the Personal Care industry.
