For the use of the clamp butterfly valve, which is better for the clamp butterfly valve or the flang

It is used for gas pipelines in the sulfuric acid industry: furnace blower inlet, relay fan inlet, electric demisting series and communication valve, S02 main blower inlet, converter adjustment, preheater inlet and outlet and other adjustment and cut-off gas volume use.

It is used in the sulfur incineration, conversion and dry suction section of sulfur acid production system, and is the preferred brand of valve for sulfur acid production device, which is considered by the majority of users to be: good sealing performance, light operation, secondary corrosion, high temperature resistance, easy operation, flexible operation, safe and reliable butterfly valve, which has been widely popularized and used.

It is also widely used in chemical, petrochemical, smelting, pharmaceutical, food and other industries in SO2, steam, air, gas, ammonia, CO2 gas, oil, water, brine, lye, seawater, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid and other media pipelines as a regulating and intercepting device.

The use of butterfly valves1. It is used for gas pipelines in the chemical industry: blower inlet and outlet in front of the furnace, relay fan inlet and outlet, electric demisting series and communication valve, S02 main blower inlet and outlet, converter adjustment, preheater inlet and outlet and other adjustment and cut-off gas volume use.

2. It is used for sulfur incineration, conversion and dry suction section in the acid making system, which is the brand of valve for acid making device, and is considered by the majority of users to be: good sealing performance, light operation, secondary corrosion, high temperature resistance, easy operation, flexible operation, safe and reliable butterfly valve, which has been widely popularized and used.

3. It is also widely used in the pipelines of SO2, steam, air, gas, ammonia, CO2 gas, oil, water, brine, lye, seawater, phosphoric acid and other media in chemical, petrochemical, smelting, food and other industries as a regulating and intercepting device.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Chaoda, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Summary. Clamp butterfly valves and flanged butterfly valves are the two common types of butterfly valves. The application range of the two butterfly valves is very wide, and there are many friends who can't tell the difference between the clamp butterfly valve and the flanged butterfly valve, and don't know the difference between the two.

First of all, the clamp and flange of the butterfly valve are two connection methods.

In terms of the aspect, the counter-clamp type is cheaper, and the flange is roughly 2 3. When choosing imported valves, use the clamp type as much as possible, which is cheaper. Heavy and light.

If the flanges on both sides are not aligned, the bolts will be subjected to greater shear force, and the valve is easy to leak.

The clamp-on valve bolt is generally relatively long, and under high temperature conditions, the bolt may cause leakage after expansion, so it is not suitable for large pipe diameters under high temperature conditions. And for clamp-on butterfly valves - generally can not be used.

When the end of the pipeline and the downstream need to be disassembled, because when the downstream flange is removed, the clamp-type valve will fall off, and in this case, it is necessary to make a short section in order to disassemble it, while the flanged butterfly valve does not have the above problems, but the cost will be relatively high.

There are no flanges at both ends of the body of the clamp butterfly valve, only a few guide bolt holes, and the valve is connected with the flange at the end with a set of bolt nuts. In contrast, it is easier to disassemble, and the cost of the valve is lower, but the disadvantage is that there is a problem with the sealing surface, and both sealing surfaces have to be disassembled.

There are flanges at both ends of the flanged butterfly valve body, which are connected with the pipe flanges. The seal is relatively more reliable, but the valve is more expensive.

Which is better, the clamp butterfly valve or the flanged butterfly valve?

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Clamp butterfly valves and flanged butterfly valves are the two common types of butterfly valves. The application range of the two butterfly valves is very wide, and there are many friends who can't tell the difference between the clamp butterfly valve and the flanged butterfly valve, and don't know the difference between the two. First of all, the clamp and flange of the butterfly valve are two connection methods.

In terms of the aspect, the counter-clamp type is cheaper, and the flange is roughly 2 3. When choosing imported valves, use the clamp type as much as possible, which is cheaper. Heavy and light.

If the flanges on both sides are not aligned, the bolts will be subjected to greater shear force, and the valve is easy to leak. In the case of high temperature, the bolt may cause leakage after expansion, so it is not suitable for large pipe diameter under high temperature conditions. Moreover, the clamp butterfly valve can not be used at the end of the pipeline and the downstream needs to be disassembled, because when the downstream flange is removed from the mu, the clamp valve will fall down, and this situation must be made in another short section in order to disassemble, and the flange butterfly valve does not have the above problems, but the cost will be relatively high.

There are no flanges at both ends of the body of the clamp butterfly valve, only a few guide bolt holes, and the valve is connected with the flange at the end with a set of bolt nuts. In contrast, it is easier to disassemble, and the cost of the valve is lower, but the disadvantage is that there is a problem with the sealing surface, and both sealing surfaces have to be disassembled. The flanged butterfly valve body has flanges at both ends of the hood, which are connected with the pipe flanges.

The seal is relatively more reliable, but the valve is more expensive.