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DELCO Manual Metal Seated Cast Steel Flanged Butterfly Valve, Class 150-300, DN06-DN100
Built for durability in high-temperature industrial lines, this manual flanged butterfly valve features a tough Cast Steel (WCB) body and metal seating for reliable shutoff. Rated Class 150-300 (PN16-PN40), it uses a worm gear operator to manage high-torque sealing, making it superior to cast iron valves for steam and process duties.
Size Range: DN40-DN1200
Material: CI, WCB, Stainless Steel etc.
Cnnection Standard: GB/ANSI/JIS
Features
A robust cast steel, metal-seated flanged butterfly valve with worm gear operation, designed for Class 150-300 isolation in harsh environments.
✅Superior Body Material: Constructed from Cast Steel (WCB) rather than brittle Cast Iron, offering significantly higher tensile strength and impact resistance for high-pressure (Class 150/300) safety.
✅Metal-to-Metal Sealing: Features a hardened metal seat designed to handle temperatures up to 425°C, providing a leak-tight solution where soft-seated rubber valves would melt or degrade.
✅Worm Gear Precision: Includes a manual gearbox that converts low handwheel effort into high output torque, ensuring smooth, controlled operation of the disc against high line pressures.
✅Double Flanged Integrity: The flanged body design provides robust pipe support and allows for downstream pipe removal without compromising the valve's seal, unlike wafer-style alternatives.
✅Industrial Versatility: Provides a cost-effective and lightweight alternative to a bulky Trunnion Mounted Ball Valve for throttling and isolation in large-scale steam or oil piping networks.
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Parameters
Key Application Fields
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Oil & Gas
DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines. -
Chemical & Petrochemical
DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely. -
Power Generation
DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants. -
Food & Pharmaceutical
DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity. -
Water & Wastewater
Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability. -
HVAC & District Heating
DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.
Browse our case studies or talk directly with our engineers to discuss your application.
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