Gear Operated Butterfly Valve
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Gear Operated Butterfly Valve

Gear Operated Butterfly Valve deliver powerful torque for large pipelines. Their precision gearing ensures smooth operation under high pressure. The grooved connections allow quick installation with standard couplings. Perfect for water treatment, fire protection, and industrial processing plants requiring reliable flow control.
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Product Introduction

Product Introduction1

 

Keylion Butterfly Valve

Heavy-Duty Grooved Butterfly Valves equipped with precision gear drives offer unparalleled performance in demanding flow control applications. The integrated gear mechanism multiplies operating torque, enabling effortless control of large-diameter valves against substantial system pressure. The grooved end connections provide rigid, leak-proof joints that accommodate pipe movement and vibration. Perfect for power generation facilities, industrial water systems, and fire protection networks, these valves combine installation convenience with long-term reliability. Their durable construction ensures consistent performance while reducing maintenance requirements across decades of service.

Product Parameter

 

Product Name

Grooved Gear Operated Butterfly Valve

End Connection

Grooved

Pressure Max

363 PSI /25 Bar

Standard

ANSI / GB/BS

Size Range

2'' to 12'' (DN50 to DN300)

Color

Red/Blue

Surface Finishing

Epoxy Paint Coating

Application Medium

Water

Application fields

Fire protection system, Water supply project

 

Product Material

 

Body

Ductile Iron QT450-10

Handwheel

Ductile Iron QT450-10

Disc

Ductile Iron ,covered by EPDM / 304 Stainless Steel

Stem

2CR13 Stainless Steel/304 Stainless Steel

Spring

304 Stainless Steel

Seal

NBR(Standard)

 

Working Principle of Grooved End Gear Operated Butterfly Valves

 

  • Gear Operation: The valve utilizes an enclosed gear system to multiply input torque, allowing for smooth and manageable operation of large valves even under high pipeline pressure.
  • Quarter-Turn Mechanism: A simple 90-degree rotation of the handwheel is all that is needed to fully open or close the valve, enabling rapid flow control.
  • Disc Movement: This rotation turns a stem connected to a circular disc inside the valve body. The disc swings from a position parallel to the flow (open) to perpendicular (closed).
  • Bubble-Tight Sealing: In the closed position, the entire perimeter of the disc compresses against a resilient, flexible seat (like EPDM), creating a reliable, leak-proof seal.
  • Grooved Connection: The grooved ends align with matching pipe grooves, and when joined with a coupling, they form a rigid, mechanically locked joint that maintains system integrity.

 

Role and Applications Across Various Industries

 

  • Fire Protection: Serves as a crucial sectional control valve in sprinkler systems, allowing firefighters to isolate specific zones during an emergency or maintenance.
  • Water & Wastewater: Provides reliable shut-off and flow control in treatment plants, pumping stations, and distribution networks, with grooved ends enabling fast installation.
  • Industrial Processing: Handles a wide range of media, including chemicals and abrasive slurries, in manufacturing and chemical plants, thanks to its corrosion-resistant construction.
  • Mining: Withstands the demanding conditions of slurry transport and process water lines, where the robust gear operation ensures dependable performance.
  • HVAC Systems: Its compact design and precise control make it ideal for regulating water flow in commercial heating and cooling systems.

 

FAQ

 

Q: What's the working principle behind this valve?

A: It operates through a quarter-turn mechanism where rotating the handwheel turns precision gears that rotate a disc inside the valve body. The disc swings from parallel to perpendicular position relative to flow, while grooved ends create secure connections without welding or threading.

Q: Why is it crucial in fire protection systems?

A: In fire protection, it serves as reliable sectional control valves that firefighters can operate under pressure during emergencies. The gear operation ensures positive shut-off in critical moments, while grooved connections allow rapid system modifications and repairs.

Q: How does it integrate with other piping components?

A: It connects seamlessly with grooved pipes, couplings, elbows and tees using standard coupling housings. The system works harmoniously with check valves, strainers, and other grooved components to create complete, leak-proof piping networks.

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