Before you choose a China butterfly valve there is some information you must acquire. You need to do this in order to make the best choice that will cover all your needs. There are many types of valves and each type has different models. This vast diversification has the role to cover all the needs that appeared over time. Every type has certain advantages and disadvantages over the others and you need to know what these are before choosing which one to use. A butterfly valve manufacturer will have at least three models which they produce and you must learn what makes them different.
In this article, you will find what are the advantages and disadvantages of a butterfly valve. You will understand in which situation they must be used and in which ones you should consider other types. After you understand this you can double-check your decision with the manufacturer right before buying. In this way, you can make sure that you have made the right decision. You can also learn from this article what are the different models of butterfly valves and what makes them special.
What Are the Advantages of a China Butterfly Valve?
The first thing you need to know is, how does a China butterfly valve works. The concept is easy to understand. A disk mounted on a shaft that can rotate. When the valve is closed the disk seals the pipe and stops the flow of the substance while opening the valve will allow it to flow around the disk. The only disadvantage that such a structure has is the fact that at large pressures the seal is not as efficient as other types, for example ball valves, which ability to seal is much better. On the other hand, this structure offers several advantages.
- Cost. The first one is its low cost. The amount of materials needed for the construction of this type of valve is very small. Together with the fact that the cost of the materials and the labor needed is very low for a butterfly valve manufacturer in China, it will result in a very small price that you need to pay for it.
- Flow regulation. Using this type of vale will allow you to regulate the volume of liquid that will flow through the pipe. This is a very useful ability and it is needed in a large range of applications. They can be used from small applications like taps to big projects like dams.
- Easy manipulation. While used in the optimal conditions this type of valve is the easiest to manipulate. It can be closed and opened very easy, while you also have very fine control over the process. Although other alternatives will allow you to regulate the flow of the valve, none will allow you the level of precision that a butterfly valve does.
What Are the Models Produced by a Butterfly Valve Manufacturer?
Every butterfly valve manufacturer will have some specialized models that are produced for certain purposes only. You can find them together with the standard ones on the manufacturer’s site. In this article will only be presented the most common models you can find on the market:
- Resilient seated. This model is used in the vast majority of low-pressure applications. You will find this model used in taps, in drainage systems, in air conditioning, and other such systems
- PTFE lined. This model is resistant to chemicals. It was developed as a solution to the applications that corroded the normal ones to fast. Now it is used in a large number of mediums. The PTFE lined butterfly valve can be used when dealing with salt, oxidants, acidic substances, and other chemicals that would degrade normal valves very fast.
- High performance. This type has appeared because the resilient seated valve cannot deal with high pressure and extreme temperatures. It is used in appliances that deal with steam or very cold water. It can also be used in high-pressure applications like jets of fuel or pressurized water.
- Triple offset. In the petroleum industry there appeared the problem of galling or scratches appearing very fast in the space between the seat and the disc of the valves. To eliminate this problem, this model of China butterfly valve was created. It resolved the problem because the disc comes in contact with the seat only at the moment of complete closure. By doing this, the accumulation of damage between them was reduced to an extreme.
