Assuming you want to opt for the best butterfly valve to meet your needs, you are on the right page. These units are designed to withstand different pressure and temperature levels. Therefore, we suggest that you understand your application to choose one that can satisfy your needs. Let’s know the difference between high-performance and general service butterfly valves.
General Service Units
These units are designed for general processing that involves water, steam, air, and other gases or fluids that are chemically inactive. Usually, these units feature a 10-piston handle for easy opening and closing. Also, you can use an electric or air actuator to open and close them.
The seat of the valve covers the body in order to make sure that the material doesn’t touch the body. Also, the design of the seat is ideal to make the unit work in vacuum applications. The shaft of the valve goes via the disk and joins the disk through a tight spline. There are 3 bushings on the bottom and top that serve as the bearing of the shaft.
The primary benefit of these units is that they are designed van bướm điều khiển bằng điện in a simple manner. So, they are custom-made to meet different piping applications. Apart from this, they are sealed with elastomer.
High-performance butterfly valves may handle all that general service units can. However, they can withstand a lot of gases and liquids, unlike the other type. Also, they are made with high-quality PTFE seats in order to withstand corrosive and chemically reactive stuff.
On the other hand, general-purpose units are made with elastomers, which are prone to erosion. High-performance ones use graphite for the purpose of sealing the seat. You can find them in as large size as 60. So, you can use them for a wide range of applications.
Regardless of the type of material you need to process, you can find a unit that can meet your needs. Also, if your projects may have fugitive emissions, we suggest that you go for a unit that comes with stem seal extensions to control emissions.
You can go for a steel or stainless steel high-performance butterfly valve. Typically, the metals are welded in order to make the valve tolerate extreme temperatures and pressures. The majority of these units feature a stop or valve that prevents over-travel.
Choosing the Best One
For power generation plants like energy power units, high-performance butterfly valves are an ideal option. Also, they are the safest devices to be used in petroleum refineries and chemical processing units that use reactive chemicals. Also, water treatment plants should use these units to deal with high levels of water pressure.