Alfa Laval SB Anti Vacuum Valve

The Alfa Laval SB Anti Vacuum Valve is a hygienic vacuum relief valve designed to protect closed tanks from collapse caused by internal vacuum conditions.

It is commonly used during tank emptying, cooling after hot cleaning, and CO2 caustic cleaning, where vacuum pressure may form inside the tank. This valve automatically allows air into the tank to prevent damage and ensure safe operation.

Suitable for brewery, dairy, food and beverage and other hygienic industries.

Features		Benefits
Compact design for easy installation on top of any closed tank High-quality stainless steel with Ra ≤ 0.8 μm surface finish Fully compliant with PED 97/23/EC standard		Reliable vacuum condition prevention valve for tank safety Reduces risk of tank implosion during CIP or production cycles Improves overall safety standards as a hygienic vacuum relief valve for closed tanks Low installation cost with long-term operational value

How does SB Anti Vacuum Safety Valve work?
The valve is equipped with a preset counterweight based on the tank’s vacuum tolerance. When internal pressure drops below the safe level, the valve automatically opens and allows atmospheric air into the tank. This prevents vacuum build-up and protects the tank from implosion