Запобіжний клапан

Alfa Laval relief valves prevent vacuum or pressure build up inside tanks or vessels used in the brewery, food and beverage, personal care and biopharm industries.

relief valve front 640x360

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.

Product Benefits

  • Overpressure protection
  • Designed for product flows up to 800 hl/h
  • Atmospheric tank in hygienic process lines

 

Як це працює

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.

Stainless steel, two-way relief valve

Alfa Laval two-way relief valves in stainless steel use the same operating principle as the Alfa Laval polyethylene relief valves, but use an oil bath instead of a glass or polyethylene ball to control the airflow. These relief valves have 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.

Part of a broad tank equipment range

Alfa Laval offers a comprehensive range of tank equipment intended for hygienic applications in the dairy, foodbeverage,home carepersonal 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.

.
阿法拉伐搅拌罐

Ten top tips - Tank Equipment

Here are some tips and service videos to show you how you can keep your tank equipment in tip top condition.

Харчова логіка

Гігієнічне обладнання Alfa Laval поєднує в собі високу продуктивність та акуратне поводження, щоб зберегти чутливі інгредієнти та не відставати від тенденцій харчової промисловості. Обладнання вирішує чотири ключові проблеми; постачання харчових продуктів споживачам за конкурентоспроможною ціною, отримання максимуму від сировини, зменшення відходів та викидів, а також доставка безпечних та гігієнічних харчових продуктів.

food logic 640x360

Онлайн-каталог "Close at hand"

Каталог компонентів та рішень Альфа Лаваль для гігієнічного обладнання

Close at hand 2019 - Cover image 640x360

CAD portal

Download the product models in Neutral or Native CAD file formats. It is also possible to download 3D PDF files.

 View CAD portal 

Animations

 

 

Visit the animations site and take a look inside a product to see and understand how it works. 

View animations 

Tank equipment

Технічні статті