A butterfly valve in Australia is a valve that has a quarter-turn motion of rotation. The valve is used to regulate, stop and start the flow. Butterfly valves have a disk that is installed on a rotating shaft. The disk of the valve completely blocks the line when the valve is fully closed. The disc of the valve is at a right angle to the flow of the liquid or gas when the valve is fully opened.
Components of a butterfly valve
Butterfly valves consist of the disk, body, seat and stem as the main components. The body fit between the two flanges of the pipe and the most common are the wafer and lug body design. The disk is how the butterfly valve makes the flow to stop. The disk is equivalent to a gate in a gate valve, a plug in a plug valve, or a ball in a ball valve. The design of the disk comes in various orientations and design to improve the flow. The stem of the butterfly valve can be a two-piece design or a one-piece shaft. In designs that are most resilient, the stem is protected from the media. This allows an efficient selection of the material with respect to mechanical properties and the cost.
The seat of the butterfly valve uses an interference fit between the seat and the disk edge to provide shutoff. The seat’s material can be made from different polymers or elastomers. The seat of the valve may be bonded to the body or locked in or may be pressed
Benefits of butterfly valves
You might need a butterfly valve from your butterfly valve supplier Australia for various reasons. Here are some of the benefits of using butterfly valves.
The valves are fast and easy to open
The valve has a 90 degrees rotation of the handle and this ensures a complete opening and closure of the valve. Large valves are equipped with a gearbox. This is where the handwheel is connected to the stem. This helps to simplify the operation of a butterfly valve with the expense of speed.
The valves are cheap
Making butterfly valves need less material to build due to their unique design. The wafer butterfly valve is the most economical type and fits between two flanges. The lug wafer is also another design and it is held in place between two pipe flanges. Common materials for making butterfly valves are cheap.
Fewer space requirements
Butterfly valves have a compact design that requires less space compared to other types of valves.
Butterfly valves are reliable and they are low maintenance valves. This makes them a popular choice. The valves have a reduced level of wear and tear making them useful and long-lasting. This reduces the operating costs and the hours you will spend on maintenance.
You can use a butterfly valve Australia for a wide range of applications such as cooling water, gases, air, fire protection and more. Butterfly valves can also be used in slurry, vacuum service, compressed air, high pressure and high-temperature steam services.