The 3-piece threaded ball valve features a three-section body, with the middle valve body and ball secured by four long bolts at both threaded ends. This valve is easy to maintain and disassemble; it does not require removing the piping threads. Simply remove the four bolts to remove the middle section of the valve body, making component replacement extremely convenient. With threaded connections at both ends, it is suitable for pipelines operating at ≤1000 psi and temperatures from -29°C to +300°C. This valve is widely used in the paint process system at a General Motors plant in Michigan. This valve is free of silicone and contaminants, assembles dry, requires no lubricant, and is suitable for applications requiring high process cleanliness.
Structural Features
Three-piece design: Composed of three parts, facilitating installation, maintenance, and component replacement. This design allows for individual disassembly and replacement of each valve component without removing the entire valve from the pipeline.
Internal thread connection: Employs an internal thread connection, suitable for pipeline systems requiring threaded connections.
Valve body casting: Utilizes advanced technology, resulting in a rational structure and aesthetically pleasing appearance.
Valve seat and stem design: The valve seat employs an elastic sealing structure, ensuring reliable sealing and easy opening and closing; the valve stem uses a bottom-mounted structure with a reverse seal, preventing the stem from being ejected during abnormal pressure increases in the valve cavity.
Performance Advantages
Low fluid resistance: The resistance coefficient is equal to that of a pipe section of the same length, contributing to improved system efficiency.
Reliable sealing performance: Widely utilizes sealing surface materials such as plastics, providing excellent sealing performance and making it suitable for extensive application in vacuum systems.
Easy operation: Rapid opening and closing; only a 90° rotation is required from fully open to fully closed, facilitating remote control.
Easy maintenance: Simple structure; the sealing rings are generally movable, making disassembly and replacement convenient.
Wide range of applications: Suitable for pipe diameters ranging from millimeters to meters, and also applicable to high vacuum applications. It can withstand high-pressure media and high torque, providing reliable protection for high-pressure control.
Corrosion resistant, high-temperature resistant, and wear resistant: Manufactured using high-quality materials and advanced processes, it can operate stably in harsh environments.
Applications
Three-piece internal thread ball valves are widely used in system control in industries such as chemical, petroleum, textile, power, food and pharmaceutical, refrigeration, and papermaking. In these industries, three-piece internal thread ball valves effectively control the flow of media, ensuring the stability and safety of the production process.