Flange Butterfly Valve
Product Introduction1
High-Performance Flange Butterfly Valve set new standards in industrial flow control. The full-bore design minimizes pressure drop while the gear mechanism ensures positive shut-off under varying pressure conditions. Flange connections accommodate thermal expansion and pipe movement, reducing system stress. With options for different gear ratios, mounting positions, and automation readiness, these valves adapt to specific operational requirements. Trusted by engineers in power plants, water distribution networks, and industrial complexes, they represent the optimal balance between technical excellence and practical functionality.
Product Parameter
|
Product Name |
Flange Gear Operated Butterfly Valve |
|
End Connection |
Flanged |
|
Pressure Max |
363 PSI /25 Bar |
|
Standard |
ANSI / GB/BS |
|
Size Range |
2'' to 12'' (DN50-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) |
Comparison of Gear Operated Butterfly Valves
|
Feature |
Flanged Type |
Grooved Type |
Wafer Type |
|
Connection |
Bolt holes for flange mounting |
Grooved ends with couplings |
Sandwiched between flanges |
|
Installation |
Requires precise alignment |
Quick coupling connection |
Fast but needs proper compression |
|
Pressure |
High pressure (ANSI Class 150/300) |
Medium pressure (200-300 PSI) |
Medium pressure |
|
Space |
Requires most space |
Moderate space needs |
Most compact |
|
Cost |
Highest cost |
Moderate cost |
Most economical |
|
Applications |
High-pressure systems, chemical plants |
Fire protection, HVAC, mining |
Commercial plumbing, industrial systems |
Key Points
- Flanged: Best for high-pressure permanent installations
- Grooved: Ideal for quick installation and modifications
- Wafer: Optimal for space-constrained, cost-sensitive projects
All types provide reliable gear operation for large-diameter valve control.
FAQ
Q: Why is it important in fire protection systems?
A: It acts as a main or sectional control valve in sprinkler systems. The flanged connection provides a super strong, reliable link that won't fail under pressure, and the gear operator ensures firefighters can confidently open or close it during an emergency.
Q: How does it work with other piping components?
A: It connects directly to flanged pipes, fittings, and equipment. It is commonly used alongside other flanged valves like check valves and gate valves to build a complete, high-integrity piping system, often with gaskets and bolts specified for the application.
Q: Are there any downsides?
A: It is generally heavier, takes up more space, and has a higher initial cost compared to wafer or grooved valves. Installation also requires more time and care to properly align and bolt the flanges.
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