Backflow preventer for sale is a hydraulic control combination device that strictly limits the water flow in the pipeline to only one-way flow according to the situation that the backflow pollution of the tap water supply equipment, especially the drinking water pipeline is serious, and there is no effective device to prevent the backflow pollution. As a popular kind of China bronze ball valve, the backflow preventer function is to prevent the medium in the pipeline from flowing back under any working conditions to achieve the purpose of avoiding backflow pollution. At present, different types of backflow preventers are mainly low-resistance backflow preventers and pressure-reducing backflow preventers. According to national standards, the head loss of low-resistance backflow preventer device is less than 3 meters, and the head loss of pressure-reducing backflow preventers is less than 7 meters.
Carbo's Bronze Backflow Preventer Advantages
As one of the most biggest backflow preventer manufacturers in China, Carbo provides different backwater valve types with high quality. The product has the characteristics of double non-return and air partition, which can completely prevent backflow pollution under any working conditions.
In addition, the backflow preventer device is designed according to the CJ/T160-2002 standard, with accurate calculations, excellent processing, reliable performance and sensitive actions. Both the inner and outer surfaces of backflow regulator valve are sprayed with environmentally friendly coatings to ensure the anti-corrosion and safety of the bronze backflow preventer.
The two-stage independent check valve has small flow resistance and rapid opening and closing, which can effectively prevent the sudden increase of back pressure from damaging the valve and pipeline. It has a silent function. The discharge pressure of the discharge valve is adjustable, which is less disturbed by pipeline fluctuations, and the opening and closing is safe and reliable.
Bronze Backflow Preventer FAQs
What are the different types of backflow preventers?
According to the connection methods, the backflow prevention device types can be divided into flange connection and threaded connection. The flange connection has a pressure reducing backflow preventer and a low resistance backflow preventer. A threaded connection has a threaded low resistance backflow preventer, a miniature backflow preventer, and a water heater backflow preventer.
What kind of backflow preventer do I need?
A water heater backflow preventer that strictly limits the water in the pipeline to only one-way flow. Its function is to prevent the medium in the pipeline from flowing back under any working conditions to achieve the purpose of avoiding backflow pollution. Customers can choose different types of backflow preventers according to their needs. As a big bronze valve factory, we also provide other kinds of valves such as bronze globe valve, bronze gate valve and so on.
How high does a backflow preventer need to be?
The backflow preventer should be installed horizontally, and should be installed in the direction of the arrow during installation. The height of the outlet of the safety drain valve should be greater than 400mm from the ground, and it should not be submerged by water or debris. According to the national standard, the head loss of the low-resistance backflow preventer is less than 3 meters, and the head loss of the pressure-reducing backflow preventer is less than 7 meters.
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