Is it better to have one-piece ball valve or two-piece ball valve?

As a common industrial valve, ball valves are widely used in liquid, gas and steam pipeline systems to control the flow of fluids. Ball valves are divided into two types: one-piece and two-piece, each type has its specific advantages and applicable scenarios. When selecting a ball valve type, comprehensive considerations need to be made based on specific application needs and system requirements.

One-piece ball valve refers to a ball valve in which the ball and valve body are designed in one piece. It has the advantages of simple structure, small size and light weight. Since the ball of the one-piece ball valve is processed as a whole, there is no risk of leakage at the interface connection. This kind of ball valve has good sealing performance and can operate stably under high temperature and high pressure conditions. The one-piece ball valve has small opening and closing torque, flexible opening and closing, and convenient operation. Therefore, one-piece ball valves are widely used in general industrial pipeline systems, such as chemical industry, petroleum, natural gas, water treatment and other fields.

Two-piece ball valve refers to a ball valve in which the ball and valve body are designed separately. It has the characteristics of good disassembly and repairability. Since there is a connection interface between the ball and the valve body of the two-piece ball valve, air leakage or liquid leakage is unlikely to occur under normal circumstances, but its sealing performance is slightly worse than that of the one-piece ball valve. The two-piece ball valve has higher strength and pressure resistance, and is suitable for large flow and high pressure applications. In addition, due to the relatively complex structure of the two-piece ball valve, the opening and closing torque is large and requires greater operating force. Therefore, two-piece ball valves are usually used in industrial pipelines where higher strength and pressure resistance are required, such as oil and natural gas transmission pipelines.

In general, the one-piece ball valve is suitable for general industrial pipeline systems and has the advantages of simple structure and flexible opening and closing. The two-piece ball valve is suitable for large flow and high pressure pipeline systems and has the characteristics of high strength and strong pressure resistance. When selecting a ball valve, comprehensive considerations need to be made based on the specific application environment and requirements. It is important that no matter which type of ball valve you choose, you should ensure that it is of reliable quality and made by a trustworthy manufacturer to ensure the safe operation of the system.