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Need a valve that goes beyond on/off control? The V-Port Ball Valve is the perfect solution for accurate flow regulation, pressure control, and process automation. At Perfect Engineers, we manufacture V-port ball valves engineered for smooth throttling, linear flow response, and tight shut-off—all in one compact design.
Whether you’re in chemical dosing, pharma formulation, paint batching, or process control systems, our V-port valves deliver precision, repeatability, and efficiency.



A V-Port Ball Valve is a specialized ball valve with a V-shaped opening in the ball or seat. As the valve opens or closes, the v-notch gradually increases the flow area, enabling fine-tuned throttling and linear flow characteristics—something standard ball valves can’t provide. Available in 15°, 30°, 60°, or 90° V-notch profiles depending on flow control needs
| Parameter | Specification |
|---|---|
| Size Range | ½” to 6” |
| Pressure Rating | PN16 to PN100 / Class 150 to 600 |
| V-Port Options | 15°, 30°, 60°, 90° (customizable) |
| Flow Characteristics | Linear / Equal Percentage |
| Body Materials | SS304, SS316, WCB, Alloy 20, Hastelloy |
| Seat Materials | RPTFE, Metal, Graphite |
| End Connections | Flanged, Threaded, Butt Weld, Tri-Clamp |
| Operation | Pneumatic / Electric / Positioner-based |
| Standards | API 6D, ASME B16.34, ISO 5211, IEC 60534 |
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| Feature | V-Port Ball Valve | Standard Ball Valve |
|---|---|---|
| Flow Control | Precise throttling | Not suitable for modulating |
| Flow Curve | Linear / Equal % | On/Off only |
| Actuation | Positioner-ready | On/Off actuator |
| Seat Wear | Better distributed | May damage seats on throttling |
| Cost | (Higher precision) | (General use) |
Yes—but it’s designed for throttling. For basic shut-off, use standard ball valves.
Yes. For high temp, abrasive, or steam systems, we offer metal-seated V-port valves.
Absolutely. Our designs include ISO 5211 pads and are positioner-compatible.
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