Butterfly valves are among the quarter-turn valves that have disk-like seats. Also, the discs are set perpendicular to the flow of liquid when the valve is opened or closed. The valves are operated by a handle, gear, or actuator in most cases. Despite the fact that the function of these units is pretty simple, there are different types. Throughout this article, we will look at different types of them. Keep reading to learn more.
Butterfly Valve Body Types
There are two popular body styles: wafer and lug. In the latter case, the piping can be disconnected while the system is turned on and serves as an actual union ball valve. The valves carry out this function by means of two sets of bolts, each attached to the corresponding flange. The other set of bolts maintains a seal between the two units. Clean and maintain these units on a regular basis if you have to.
Wafer-style units don’t have many bolt mounts. Typically, they have two to three holes in order to align and secure it with the piping. Additionally, they sit securely and can withstand twice the pressure of lug-style units.
Butterfly Valve Materials
The materials used for butterfly valves are similar to those used for other valve types, such as PVC and stainless steel. PVC is lightweight but offers excellent structural integrity. Additionally, it’s compatible with a wide range of chemicals. Both CPVC and PVC are inexpensive. If you are on a tight budget, you can opt for these units, rather than the more expensive option.
Cast iron butterfly valves are another great option. The reason is that it offers greater structural integrity and can withstand a wide range of temperatures. Because of this, it is a good choice for industrial applications. Butterfly valves made of cast iron provide versatility. They can be used in a variety of places.
How to use Different Types of these units
Different types of valves can be differentiated by the operation method. Gear wheels and handles are manual methods. Automated actuation can also be performed based on the model. The lever-based ones also utilize a quarter-turn lever with a locking mechanism. This is a straightforward BF valve function. However, it may not work for large, complex valves.
Also, read OVERVIEW OF INDUSTRIAL PLUG VALVE
Gear wheel operation is also a common way of closing and opening a valve. In this case, a manual wheel turns a gear to move the disc. One of the good things about this method is that it can be applied to a variety of types of valves, regardless of how big or small they are. Using gear wheels rather than human strength will make the operation much easier if you choose the mechanically intuitive method.
Aira Euro Automation is a leading butterfly valve manufacturer in Jordan. Aira has a wide range of butterfly valve which is operated by a pneumatic actuator, gear & lever.
