First butterfly valve was invented by U.S. company. Nowadays, it has been one of the most common valves and is used for on-off or modulating service. Because of its specific valve disc, butterfly valve is applicable for medium with powder, grainy fluid or suspending liquid. Although it's not the best valve, it can serve you well due to its specific features. Moreover, it offers customers more selections of sealing type and operation type. 

Buttery valve advantages

If compared with the ball valve, buttery valve is much smaller, lighter and provides faster speed despite of opening or closing. In addition, butterfly valve is also characteristic of simple structure, easy operation, as well as maintenance. 

Two types of sealing

Butterfly valve manufacturer primarily offers two types of sealing: soft seated butterfly valve and metal seated butterfly valve. With the influence of the higher demand - high temperature, corrosion resistance, as well as durability, metal seated butterfly valve is becoming popular with customers. It's able to be resistant to high temperature application. Just because of this, it's more suitable for thermal power plant application apart from chemical, water treatment use, etc. While, soft seated butterfly valve is weaker in high temperature condition. Its performance will be affected. On the other hand, it's superior in sealing performance. 

Operation methods

There are many ways that allow you to operate the butterfly valve, including manual, pneumatic, electric and hydraulic oration. In general, pneumatic butterfly valve requires less structure demand, maintenance and production cost. With adding the speed controller, it's easier for workers to adjust the speed. It's usually suitable for pipes with middle size at low pressure application. If you adopt the electric butterfly valve, users also will benefit a lot. For instance, it works well at various ambient temperatures. It provides several options of signal, such as direct current, alternating current, short wave, etc. Meanwhile, this kind of butterfly valve allows users to remember or calculate expediently. However, sometimes its working result may be influenced by voltage and frequency change. Hydraulic butterfly valve consists of three parts - control system (pressure control valve, direction control valve and electric control system), actuating unit (engine, hydraulic pump, oil box, etc) and actuator. Thanks to excellent design, hydraulic butterfly valve is fit for remote control and works well in underwater environment. With serious market competition, butterfly valve manufactures have done a lot of jobs to run after better result. They try to show the merits and overcome the demerits of butterfly valve. Hence, Soft Seated Butterfly Valve can win the trust of customers among various selections on the market.

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