Relief Valve
Alfa Laval relief valve prevents vacuum or pressure build up inside tanks or vessels used in the brewery, food and beverage, personal care and biopharm industries.
Experience the benefits of the Relief Valve
- Overpressure protection
- Designed for product flows up to 800 hl/h
- Atmospheric tank in hygienic process lines
Alfa Laval relief valve is a pressure vacuum release valve in stainless steel. This relief valve has an oil bath located in the lower section of the valve to filter atmospheric impurities that may enter through the relief valve when emptying the tank. This safeguards product hygiene and quality by preventing atmospheric impurities from entering the tank.
How does a relief valve work?
Operating principle
Alfa Laval two-way relief valves enable: (1) pressurized air to flow out of the tank from an auxiliary passage to prevent an overpressure condition in the tank when the tank is being filled, and (2) air outside the tank to flow into the tank from an auxiliary passage to prevent vacuum conditions in the tank when the tank is being emptied.
Polyethylene relief valve
For Alfa Laval polyethylene relief valves, there is a glass or polyethylene ball inside each of the two valve chambers. When the tank is filled, the ball inside one of the chambers is forced up to enable air to flow out of the tank. When the tank is emptied, the ball in the other chamber is forced up to enable air to flow into the tank.
Overpressure protection
To protect against overpressure and vacuum conditions while filling or emptying the tank of liquid, Alfa Laval two-way relief valves are mounted on top of an atmospheric tank in hygienic process lines.
Product range
The Alfa Laval range of relief valves (RV) consists of two models made of either polyethylene or AISI 304/316 stainless steel. The polyethylene model is designed for product flows up to 800 hl/h and is available in four different standard sizes: RV130, RV400, RV400A and RV800. The stainless steel model is designed for more stringent hygienic requirements. It handles product flows up to 1000 hl/h and is available in two different standard sizes: RV600 and RV1000.
Katalog „Na dohvat ruke“
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CAD portal
Alfa Laval CAD portal je neophodna platforma za preuzimanje detaljnih informacija o proizvodu, 2D crteža i 3D modela proizvoda.
Usluge
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Part of a broad tank equipment range
Alfa Laval offers a comprehensive range of tank equipment intended for hygienic applications in the dairy, food, beverage,home care, personal care, biotechnology and pharmaceuticals.
For a broader tank equipment range, explorer the different product categories: rotary jet heads, rotary spray heads, tank accessories and tank covers.
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