The three-piece threaded ball valve belongs to the category of internal threaded ball valves. It features a three-piece structure (two valve covers and a central valve body) connected by long bolts for easy disassembly and maintenance. The valve body is cast using a process imported from Taiwan, resulting in a rational structure and aesthetically pleasing design. The valve seat employs an elastic sealing structure to ensure a tight seal, and the valve stem uses a bottom-mounted reverse sealing design to prevent ejection during abnormal pressure increases.
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Three-Piece Threaded Ball Valve Technical parameters
Type: Full Bore, 2 Way
Material: Stainless Steel
Attachment Type: Threaded
Thread Standard: BSPP
Thread Size: 1inch
Pipe Diameter: 25mm
Applicable Medium: Gas, Oil, Water
Handle Type: Lever
Maximum Working Pressure psi: 1000psi
Working Temperature: -20°C to 200°C
Three-Piece Threaded Ball Valve drawning
Three-piece threaded ball valve structural features:
Suitable for frequent operation, quick and easy opening and closing.
1. Low fluid resistance.
2. Simple structure, relatively small size, light weight, and easy maintenance.
3. Good sealing performance.
4. Not limited by installation direction; the flow direction of the medium can be arbitrary.
5. No vibration and low noise.
Three-Piece Threaded Ball Valve Working Principle: 90° rotation for rapid opening and closing
- Opening Process: Rotate the handwheel counterclockwise (or with an electric/pneumatic actuator). The valve stem moves the ball away from the valve seat, aligning the ball channel with the pipeline, allowing media flow.
- Closing Process: Rotate the handwheel clockwise. The ball rotates 90° and then tightly presses against the valve seat, forming a seal and stopping media flow.
- Sealing Mechanism: The valve seat uses an elastic material (such as reinforced PTFE or para-polystyrene), achieving a zero-leakage seal through mechanical compression, and compensating for wear to extend service life.
Three-Piece Threaded Ball Valve Performance Advantages:
- Low fluid resistance: The ball channel has the same diameter as the pipeline, resulting in an extremely low flow resistance coefficient when fully open, suitable for transporting large flow rates of media.
- Excellent sealing performance: The resilient seat fits tightly against the ball, capable of withstanding high pressure (PN1.0～10.0MPa) and high temperature (reinforced PTFE seals are suitable for -29～180℃, and para-ply polystyrene seals are suitable for -29～300℃).
- Various materials: Valve bodies are available in stainless steel (304/316) or carbon steel (WCB), and seals are made of corrosion-resistant materials, suitable for various media such as water, steam, oil, nitric acid, and acetic acid.
- Flexible operation: Supports manual, electric, and pneumatic actuation, and can be configured with a 90° switching positioning mechanism and locking device to prevent accidental operation.
Applications of Three-Piece Threaded Ball Valve
- Chemical Industry: Controlling the flow of corrosive media (such as acids and alkalis) to ensure production safety.
- Oil and Gas: Used for cutting off or regulating oil and gas pipelines, adaptable to high-pressure and high-temperature environments.
- Food and Pharmaceutical: Meets sanitary requirements to prevent media contamination.
- Power and Refrigeration: Regulates the flow rate of steam or cooling media to optimize system efficiency. Paper and textile industries: Controlling the transport of pulp or chemicals to ensure process stability.
