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Three-Piece Thread Ball Valve
This three‑piece thread ball valve from ET VALVE packs a lot into a small package – it's compact, affordable, and handles high‑pressure utility and process lines with ease. You can order it with NPT, BSPT, or G threads, so it fits right into most standard piping systems without adapters. The three‑piece body makes maintenance straightforward: loosen three body bolts, swing out the center section, and you have full access to the ball, stem, and seats – no need to pull the whole valve from the line. On top of that, it seals bubble-tight with zero leakage, the stem is blow-out-proof for safety, and operating torque stays low throughout its service life.
- Convenient Threaded Connection
- In-line Maintainability
- Reliable Bi-directional Sealing
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Convenient Threaded Connection
Flange valves add bulk and weight – not ideal when space is scarce or every pound matters. This valve gets around that by using standard threaded ends (NPT, BSPT, or G threads). You simply thread it directly onto the pipe, skipping the flanges, bolts, and gaskets entirely. The result: less deadweight on your pipeline, lower upfront and shipping costs, and much quicker installation on site. It's particularly useful for light industrial applications, water treatment systems, and small‑bore, low‑to‑medium pressure lines where simplicity and speed count.
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In-line Maintainability
A common drawback of traditional threaded valves is that replacing internal components often requires unscrewing the entire valve from the pipeline—a tedious and cumbersome process. This three-piece threaded ball valve solves that problem perfectly. Thanks to its unique three-piece "swing-out" design, replacing seats, seals, or the ball requires only loosening the body bolts; the central valve body can then be easily swung out. Maintenance is performed without disturbing the threaded connections at either end of the pipe, thereby avoiding the risk of thread wear or stripping caused by repeated disassembly. This transforms a complex repair job into a quick, simple maintenance task that takes only minutes, resulting in significant savings on downtime costs.
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Reliable Bi-directional Sealing
Fluid control systems demand exceptional shut-off performance, whether operating under high-pressure flow or vacuum conditions.
The floating ball design, combined with resilient seats, ensures a tight seal regardless of installation orientation. That means the valve can be installed without concern for flow direction, and it still provides complete shut‑off without bypass or back flow. Under rising upstream pressure, the fluid pushes the ball firmly against the downstream seat, and that pressure‑assisted action actually strengthens the sealing force as system pressure increases.
| Product Specifications (Three-Piece Thread Ball Valve) |
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| DN | DN15-DN100 | Actuation Method | Pneumatic actuator、Electric actuator、Hand Lever、Worm Gear |
| Working Pressure | PN6 PN10 PN16 | Working Temperature | -17℃~120℃ |
| Ball Material | 304 316L 2205 2507 | Seat Material | PTFE(M111) TFM4215 UPE |
| Body Material | CF8 CF3M WCB 2205 2507 | Media | Water、 Oil、Gas |
| Application | Water treatment, Municipal engineering, Pharmaceutical, Automotive industry | Connection Standards | NPT/BSPT/G |
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