The 3-piece threaded ball valve is designed to provide tight sealing and durability in fluid control systems. Its body is constructed from three separate parts to allow easy maintenance and cleaning. This design enables the valve to be serviced without being completely removed from the system.

The ball inside the valve rotates to control the flow. It is placed in special seats to ensure smooth rotation. The flow direction is regulated through the hole in the ball, allowing precise control in the desired direction.

The valve connection is manufactured with threads, allowing easy installation onto pipelines. This shortens installation time and provides a cost advantage.

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Where to use?

3-piece threaded ball valves have found wide applications across many industries. They are especially common in systems carrying chemicals where high leak-tightness is required. They are also safely used in food production lines, the pharmaceutical industry, and water treatment facilities.

Thanks to its stainless steel body, it provides a long-lasting solution for systems containing abrasive liquids. Additionally, its high temperature and pressure resistance make it suitable for use in power plants and steam lines.

The valve’s three-piece design allows the equipment to be serviced without disassembly, making it especially suitable for production lines that require uninterrupted operation.

How is the Working Principle?

In the operating principle of a 3-piece ball valve, the central ball is rotated to allow fluid flow. The hole in the ball aligns with the pipeline when the valve is open, allowing flow. When closed, the hole is turned perpendicular, completely stopping the flow.

This rotational movement can be achieved with the help of a manual lever or an actuator. The threaded connection type ensures a strong and leak-proof connection to the piping systems.

What are the Product Features?

The key technical features of 3-piece threaded ball valves are as follows:

Body Material: AISI 304 / 316 Stainless Steel
Connection Type: Threaded – BSP or NPT
Operating Pressure: Maximum 63 bar
Temperature Resistance: -20°C to +220°C
Seal Material: PTFE / R-PTFE
Ball and Stem: Chrome-plated stainless steel
Sealing: Double-sided static seal structure

With these features, the valve can be safely used in both low and high-pressure systems. Additionally, the chemically resistant seals ensure long-term performance even with aggressive fluids.

Why Should It Be Preferred?

This valve model stands out for its durability and ease of maintenance. Thanks to its three-piece body design, the ball and seals can be easily accessed by removing only the central piece. This reduces operating costs and shortens service times.

The threaded connection allows for quick installation, providing a more compact solution compared to flanged models. Additionally, with a top flange option for actuator integration, it can be made compatible with automation systems.

For More Information

Technical documentation for the product, as well as other ball valve models, can be accessed through the Unox Valve Category. Additionally, detailed information can be viewed directly on the 3-Piece Threaded Ball Valve product page.