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When you need a straightforward solution for on/off fluid control, Manual Ball Valves are the most trusted and widely used option. At Perfect Engineers, we manufacture high-quality manual ball valves designed for durable performance, zero leakage, and effortless operation in water, gas, chemical, air, oil, and steam systems.
Whether you’re an OEM, contractor, plant operator, or distributor, our manual valves offer the perfect balance of cost, performance, and reliability.
A Manual Ball Valve is a quarter-turn valve operated by a lever or gear handle. Turning the handle rotates a ball with a central bore inside the valve body to either allow or block flow. With just a 90° turn, the valve switches between open and closed positions—ensuring fast, secure isolation of media in a wide range of pipelines.
Parameter | Specification |
---|---|
Size Range | ¼” to 12” |
Operation | Lever / Gear operated |
Pressure Rating | PN10–PN100 / Class 150–600 |
Body Materials | SS304, SS316, Brass, WCB, CPVC |
Seat Materials | PTFE, RPTFE, Graphite |
Design Standards | ASME B16.34, ISO 17292, API 598 |
Connection Ends | BSP/NPT Threaded, Flanged, Welded, Clamp |
Temperature Range | -20°C to +220°C |
Handle Material | SS / Mild Steel / PVC-coated |
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Valve Type | Serviceability | Cost | Best Use |
---|---|---|---|
1-Piece | ❌ Non-serviceable | 💰 Budget | Low-cost, basic shut-off |
2-Piece | ⚠ Partially serviceable | 💰💰 Mid-range | General industrial and utility use |
3-Piece | ✅ Fully serviceable | 💰💰💰 Premium | Clean-in-place (CIP), pharma, chemicals |
Manual ball valves are used for quick shut-off and flow isolation in piping systems across industries.
Not recommended. Ball valves are designed for on/off control. For throttling, use V-port valves.
Yes—with the right seat (Graphite or TFM), they’re suitable up to 220°C.
Yes. We offer replacement handles, gear operators, and LOTO kits.
With proper use, our valves last 10–15+ years, even in harsh industrial environments.
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