Relief Valve | Alfa Laval

Relief Valve

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.

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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

 

How it works

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.

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Sepuluh tips unggulan - Peralatan Tangki

Berikut adalah beberapa video layanan dan tips untuk menunjukkan cara merawat peralatan tangki.

Food Logic

Peralatan higienis Alfa Laval menggabungkan performa tinggi dengan penanganan yang cermat untuk mengawetkan bahan-bahan sensitif dan mengikuti tren industri makanan. Peralatan tersebut mengatasi empat tantangan utama; memasok produk makanan kepada konsumen dengan harga yang kompetitif, mendapatkan hasil maksimal dari bahan baku, mengurangi limbah dan emisi, dan menghasilkan produk makanan yang aman dan higienis.

food logic 640x360

Katalog produk

Katalog produk peralatan higienis Alfa Laval "Close at hand" berisi selebaran produk, kurva performa, tautan ke animasi, brosur, dan daftar harga untuk keperluan pemesanan.

Close at hand 2019 - Cover image 640x360

Portal CAD

Unduh model produk dalam format file CAD Netral atau Asli. Juga tersedia unduhan file PDF 3D.

 Lihat portal CAD 

Animasi

Kunjungi situs animasi dan lihat produk untuk melihat dan memahami cara kerjanya. 

 

Lihat animasi 

Peralatan tangki

Artikel teknis

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