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Home > Product > Ball Valve > Based on Operation > Manual Ball Valves

Manual Ball Valves – Simple, Reliable, and Efficient Flow Control

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.

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What is a Manual Ball Valve?

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.

Key Features of Our Manual Ball Valves

  1. Quarter-turn lever operation – quick & easy shut-off
  2. Available in full bore and reduced bore designs
  3. Lockable handle options for safety and LOTO compliance
  4. PTFE, RPTFE, or Graphite seats for high-performance sealing
  5. Body materials: SS304, SS316, WCB, Brass, PVC
  6. Available in 1-piece, 2-piece, 3-piece, and flanged types
  7. Threaded, flanged, welded, and tri-clamp end connections
  8. Pressure ratings up to 1000 PSI / Class 600

Technical Specifications

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

 

 

 

Contact Us for Pricing & OEM Support

Call

+91-9004860491

E-mail

[email protected]

Website

www.perfectqrc.com

Common Applications

  1. Water treatment and distribution lines
  2. Air, steam, and gas isolation
  3. Process fluid shut-off in chemical & pharma
  4. Solvent and fuel lines
  5. Cooling and heating pipelines in HVAC systems
  6. Agriculture and irrigation systems
  7. OEM machinery skid integration
  8. Compressed air and pneumatic lines

1-Piece vs 2-Piece vs 3-Piece Manual Valves

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

Installation & Maintenance Tips

  • Always mount the valve with handle accessible
  • Operate periodically to avoid seat deformation
  • Apply anti-seize on threaded joints if reinstallation is expected
  • Check for leakage around stem seal; replace packing if needed
  • Flush valve after use in sticky or corrosive media

FAQs

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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In the year 1988

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