Product Description 
 
Premium Manual Flanged Butterfly Valve | Worm Gear Drive | DN40-DN400
Engineered for reliable fluid control, this manual flanged butterfly valve features a robust ductile iron body and disc, ensuring durability and corrosion resistance in demanding industrial environments. Equipped with a precision worm gear operator, it enables smooth, effortless 90° rotation for quick on/off operation or precise flow throttling.
 
Key Features & Specifications:
✅ Size Range: DN40 to DN400 (1.5" to 16"), fitting most standard pipeline systems
✅ Premium Materials: Ductile iron body/disc for high strength; EPDM/NBR soft seat for tight, leak-proof sealing
✅ Versatile Application: Ideal for water, sewage, air, oil, and mild chemical media (temperature ≤80°C)
✅ Efficient Design: Compact flange connection for easy installation; low operating torque reduces wear
✅ Reliable Sealing: Bi-directional sealing design ensures zero leakage, meeting industrial safety standards
 
Ideal for water treatment plants, HVAC systems, chemical processing, oil & gas pipelines, and municipal engineering projects. A cost-effective solution for both on-off control and flow regulation needs.