Ductile Iron Butterfly Valve
Product Introduction1
Grooved End Gear Operated Butterfly Valves revolutionize industrial flow control with their unique combination of quick-connect functionality and mechanical advantage. These valves feature precision-cut gear systems that provide smooth operation for large-diameter pipelines while maintaining complete sealing integrity. The grooved-end design enables rapid installation using standard coupling housings, significantly reducing labor time compared to traditional flanged connections. Manufactured from high-grade ductile iron with full epoxy coating and corrosion-resistant internals, these valves deliver exceptional performance in water treatment plants, industrial processing, and fire protection systems where both reliability and installation efficiency are paramount.
Product Parameter
|
Product Name |
Grooved Gear Operated Butterfly Valve/Ductile Iron 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) |
Installation of Grooved End Gear Operated Butterfly Valves
Installation begins with preparing the pipe ends, ensuring they are properly grooved using a certified grooving tool. Slide the valve between the two pipe sections, aligning the grooves perfectly. Position the coupling housings over the grooves, making sure the rubber gasket is properly seated and not twisted. Insert the bolts and tighten the nuts evenly using a torque wrench in a criss-cross pattern until the housings are fully closed. This creates a rigid, mechanical joint that is both leak-proof and vibration-resistant. Always cycle the valve through its full operation range before system pressurization to verify free movement without any binding.
Advantages of Grooved End Gear Operated Butterfly Valves
- Quick Installation: Grooved ends with standard couplings enable fast assembly, drastically cutting labor time versus welded valves.
- Cost Savings: Reduced installation time and labor significantly lower the total project cost.
- Easy Operation: The gear operator provides high torque for effortless control of large valves under pressure.
- Durable Construction: High-strength ductile iron and stainless steel components ensure long service life.
- Bubble-Tight Seal: Resilient seats (EPDM/NBR/Viton) guarantee zero leakage in both flow directions.
- Low Maintenance: The pre-lubricated gearbox and inline seat replacement minimize downtime.
- System Flexibility: Grooved connections allow for easy disassembly and future modifications.
Disadvantages & Consideration
Higher Initial Cost: The unit price is higher than simpler valve types.
Pipe Preparation: Requires properly grooved pipe ends for a perfect seal.
Slower Operation: The gearbox requires more turns than a quarter-turn handle.
FAQ
Q: What are its main advantages?
A: Key benefits include quick installation without specialized labor, space-saving design, excellent corrosion resistance, smooth gear operation for large valves, and minimal maintenance requirements. The grooved system also allows for easy future modifications.
Q: Are there any limitations?
A: The initial cost is higher than basic butterfly valves, and proper pipe grooving is essential. The gear operation, while powerful, is slower than simple quarter-turn handles for emergency shutdowns.
Q: Is installation complicated?
A: Not at all. Installation is straightforward: align the valve between grooved pipe ends, position coupling housings with gaskets, and tighten bolts evenly. No welding or special tools are needed, significantly reducing installation time.
Hot Tags: ductile iron butterfly valve, China ductile iron butterfly valve manufacturers, suppliers, factory
You Might Also Like
Send Inquiry