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3 Offset BFV

3 Offset BFV

A 3 offset BFV is a valve that controls the flow of fluid in a pipeline, and it consists of a butterfly piece made of metal or plastic and a drive. The valve will have a clutch and two keys when used, and these structures allow the valve to achieve three eccentricities. Compared to traditional butterfly valves, triple offset butterfly valves have higher tightness and more accurate flow control. Its advantages lie mainly in its geometry and choice of materials. By design, the butterfly tabs of the triple eccentric butterfly valve are eccentric and can be rotated to a different angle to control the flow of fluid. At the same time, the valve also has an eccentric shaft, which allows the closing process of the valve to be completed without friction against the pipe wall. Another advantage is that the triple eccentric butterfly valve can be made of different materials to adapt to different temperatures and pressures. For example, nylon and fiberglass may degrade under high temperature and pressure conditions, while cast steel and stainless steel can withstand the test. In conclusion, the triple eccentric butterfly valve is a valve that is both reliable and efficient. Its strong flow control capabilities and flexibility in material selection make it widely used in many industries, such as food processing, the power industry, the chemical industry, and water treatment.
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Product Details of3 Offset BFV
Products Description

The 3 offset BFV is a common industrial valve, which is commonly used to regulate and control fluids on pipelines. Unlike conventional butterfly valves, 3 offset BFVS are specially designed to handle high temperatures, high pressures, and high viscosity fluids. Below, we will describe the various aspects of the triple eccentric butterfly valve in detail.

The first is structure. Compared to the traditional butterfly valve, the3 offset BFV has an additional eccentric central shaft, which allows it to achieve three eccentricities. Corresponding to these three eccentric shafts are three sealing surfaces, which are the valve body, valve seat and gasket, and the eccentricity of these three faces is different, which is called "triple eccentricity", therefore, this valve is called triple eccentric butterfly valve. Compared with traditional butterfly valves, the triple eccentric butterfly valve has better sealing and higher wear resistance.

The second is the application. Due to the special design of the triple eccentric butterfly valve, it is commonly used for the regulation and control of high-temperature, high-pressure, and high-viscosity fluids in industrial piping systems. These fluids include chemicals, petroleum products, natural gas, steam, etc. Due to its high temperature, high pressure, and wear resistance, triple eccentric butterfly valves are also commonly used in industries such as thermal power generation, nuclear power, steel, and chemicals.

The third is how it works. The sealing principle of the triple eccentric butterfly valve uses a beveled sealing surface to press the valve plate towards the gasket by external force to achieve excellent tightness. When the disc of the triple eccentric butterfly valve is pushed to a certain angle, the contact surface between the disc and the seat forms an incomplete sealing line, which is the special sealing form of the triple eccentric type. This linear sealing reduces wear and corrosion of the sealing surface, thereby increasing the life of the valve.

Finally, there are precautions for use. Since triple offset butterfly valves are typically used in high-temperature, high-pressure, and hazardous piping systems, the valve itself is required to have a high degree of safety and reliability. When using a triple eccentric butterfly valve, you need to pay attention to keeping the valve clean and lubricated to ensure its normal operation. In addition, the selection and installation of valves also need to pay attention to the matching with the pipeline and the correct assembly method.

In conclusion, the triple eccentric butterfly valve is a high-temperature, high-pressure, and high-viscosity fluid control device with good sealing and wear resistance. The special design of this valve allows it to cope with extreme conditions, so it is widely used in industrial piping systems. During use, it is necessary to pay attention to cleaning and lubrication, choose a valve that matches the pipeline and the correct installation method.

 

 

Product Design Features

1. Simple structure: The 3 offset BFV has only one rotating disc and a static sealing seat, which is relatively simple compared to other valve structures and can reduce maintenance costs.

2. High flow capacity: The disc of the eccentric butterfly valve is designed to be eccentric, which can reduce the resistance of the fluid channel and increase the flow rate, which is suitable for the regulation and control of large flow media.

3. Self-cleaning ability: The irregular gap between the sealing seat and the valve disc of the eccentric butterfly valve can make the medium produce vortex, which is convenient for self-cleaning and reduces the problem of media blockage, and the maintenance is simple.

 

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