A ball valve is a simple device that controls the flow […]
A ball valve is a simple device that controls the flow of liquids. It has a ball that is suspended within the valve and is connected to a shaft that has an opening in the centre. The valve is normally operated manually, but may also be operated with electric, pneumatic, or hydraulic mechanisms. Ball valves are used for a variety of applications, including controlling liquid level.
There are various materials used for these valves, which can affect their performance. Some of these materials are more durable than others. Brass, for example, is an alloy of copper and zinc. This material is tough and can withstand high temperatures and pressures. Brass also has antimicrobial properties, and its copper content helps prevent the growth of microbes on its surface. Brass has a low corrosion rate and is very cost-effective. Other materials include iron and bronze, which are widely used in water, oil, and steam pipelines. Both of these materials are corrosion-resistant and can withstand high temperatures.
Ball valves are often used in industries where sanitation is a concern. They can be used in industries such as the food, pharmaceutical, and bioprocessing industries. They are particularly suitable for handling solid-liquid mixtures or slurries. Some manufacturers recommend using vented ball valves to prevent clogging.
Ball valves may be a two-piece or a three-piece design. Two-piece valves typically consist of two pieces, one that contains the ball and a second piece that holds the trim in place. These valves are ideal for applications where frequent cleaning is required. They can be easily disassembled for maintenance or cleaning.
A three-piece ball valve is compact and can be reduced or full-bore for maximum flow. Both types have a stainless steel handle and a protective PVC sleeve. They also have a blow-out-proof bottom-loaded stem, and several different end connections, including male/s NPT or BSP pipe end connections. The materials used for these valves can be stainless steel, Brass, and Aluminum.
Ball valves are available in a variety of sizes, with each type having its own advantages. Standard port ball valves have a smaller inner diameter than the piping that is connected to them. These ball valves are less expensive than other types of valves, but the pressure drop across the ball is higher.