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Maximize your facility's uptime and protect your expensive closed process tanks from catastrophic implosion with the Aomite Flanged Anti-Vacuum Valve.
Engineered as a critical safety device for the brewery, food, and beverage industries, this springless, weight-operated (lever-type) valve instantly breaks internal vacuum conditions. It reliably safeguards thin-walled vessels against severe negative pressure caused by rapid liquid emptying, cool rinsing after hot CIP cleaning, or caustic cleaning in a CO2 atmosphere. With a highly sensitive counterweight lever and a secure flanged connection (available in DN80, DN100, and DN200), it offers superior hygiene, low initial investment, and unparalleled process safety.
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The Anti Vacuum Valve is a compact safety valve that protects tanks from collapse or implosion due to internal vacuum conditions. These conditions occur during emptying, cool-rinsing after hot-cleaning, or caustic cleaning in a CO2 atmosphere. The compact, easy-to-clean safety valve fits onto any closed process tank, optimizing the personnel safety, reliability and performance of critical processes and maximizing uptime.
Greater process safety
Low initial cost of investment
Compact design
Superior hygiene
Easy installation
This safety valve is designed for use in hygienic processes in the brewery, dairy, food, beverage and many other industries.
| Parameter | Specification |
|---|---|
| Product Type | Anti-Vacuum Valve / Vacuum Breaker |
| Material Grade | Premium Stainless Steel (SS304 / SS316L) |
| Operating Mechanism | Springless, Weight-Operated Lever (Counterweight) |
| Connection Type | Flanged Base (Welded to tank top) |
| Available Sizes | DN80, DN100, DN200 |
| Function | Prevents tank collapse/implosion from internal vacuum |
| Primary Trigger Conditions | Rapid draining, thermal shock (CIP cooling), caustic in CO2 |
| Applications | Brewery fermenters, bright beer tanks, dairy storage silos |
The Caustic/CO2 Reaction
In breweries, fermenters are often filled with CO2 gas after beer is transferred. If a brewer initiates a CIP cycle using a caustic soda (alkaline) solution without fully purging the CO2 first, a rapid chemical reaction occurs. The caustic instantly absorbs the CO2 gas, causing a massive and sudden drop in internal volume. Without a highly sensitive anti-vacuum valve to instantly let ambient air in, this severe vacuum can crush a heavy stainless steel fermenter like a soda can in seconds.
No Metal Fatigue: Springs can lose their tension over time after thousands of compression cycles or exposure to harsh cleaning chemicals. A stainless steel counterweight relies on gravity, which never fails or changes.
Ultra-High Sensitivity: A lever-operated weight can be calibrated to open at extremely low vacuum thresholds (fractions of a bar), providing faster reaction times than spring-loaded alternatives.
Superior Hygiene: Without internal spring coils that can trap sticky wort or beer foam, a weight-operated valve is much easier to fully sanitize during CIP processes.
2024-04-26 259
Catalogue2022.pdf
