Flanged Cast Iron Butterfly Check Valve 150LB-2500LB Pressure for Water Supply & Sewage Systems
The Flanged Cast Iron Butterfly Check Valve is engineered for industrial water supply and sewage treatment applications, featuring pressure ratings from 150LB to 2500LB. This valve prevents medium backflow in pipeline networks and automatically eliminates destructive water hammer, providing reliable protection for pumps and pipelines.
- Novel structure with compact dimensions for space-efficient installation
- Low fluid resistance for optimized flow performance
- Stable operation with reliable sealing capabilities
- Excellent wear resistance and superior buffering performance
- Automatic operation requiring no manual intervention
- Ideal for industrial water systems and urban sewage discharge
| Component | Material Options |
|---|---|
| Valve Body | Gray cast iron, carbon steel |
| Butterfly Plate | Gray cast iron, cast steel, ductile iron |
| Sealing Ring | Nitrile oil-resistant rubber, chloroprene rubber |
| Valve Stem | Stainless steel |
| Filler | Polytetrafluoroethylene |
When medium flows through the valve body channel, the pressure exceeds the spring force, pushing the two butterfly plates open to allow flow. When flow stops, the spring force resets the plates, closing the valve and preventing backflow. This double-flap check valve features wear-resistant welded sealing surfaces or rubber lining for broad application across pure pipelines, industrial systems, environmental applications, water treatment facilities, and high-rise building water supply systems.
SND brings 20 years of specialized metal goods manufacturing expertise, utilizing advanced techniques including sand casting, lost wax casting, lost foam casting, and precision machining. Our ISO9001-certified quality control ensures consistent reliability through comprehensive testing processes including spectrometer analysis, ultrasonic inspection, magnetic testing, permeability evaluation, and tensile/yield strength verification. We serve diverse industries including automotive, rail transportation, agricultural machinery, chemical processing, energy, electrical systems, water management, air compression, and construction applications.
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