Electric Hard Seal Flanged Butterfly Valve for High-Integrity, High-Pressure Systems
The DELCO Electric Hard Seal Flanged Butterfly Valve is a high-performance, automated isolation and regulation valve designed for rigorous industrial applications involving steam, oil, gas, and high-temperature/high-pressure fluids. It features a sophisticated three-eccentric sealing mechanism with a robust metal-based sealing ring, ensuring superior, bidirectional zero-leakage performance. The Flanged connection offers excellent structural integrity, making it the preferred choice for large-diameter pipelines and high-pressure duties where secure mounting is critical.
Features
Three-Eccentric Hard Seal and Flanged Structural Integrity
✅ Three-Eccentric Sealing Technology: Incorporating three distinct eccentric offsets, this advanced design minimizes friction between the disc and the metal seat during most of the stroke. Contact is made only at the moment of closure, achieving a zero-wear, self-tightening seal that ensures reliable, long-term tight shut-off even under fluctuating temperatures.
✅ Flanged Connection Superiority: The Flanged type body provides the highest degree of structural stability and is especially recommended for larger nominal diameters (DN40 and above) and applications involving higher system pressure (up to 1.6 MPa / PN16). The bolt-up security prevents leakage at the pipeline connections.
✅ Hard Seal Versatility: The sealing ring (seat) materials, such as Stainless Steel, Stainless Steel/Graphite, or Stainless Steel/PTFE composites, provide the valve with exceptional resistance to high temperatures and abrasive media, while maintaining reliable sealing across a wide temperature spectrum.
✅ Automated Control Options: The valve is driven by a powerful electric actuator, offering remote operation capability. It supports both ON/OFF (Switch) control for reliable isolation and Modulating (Adjustment) control via analog signals (e.g., 4-20 mA) for precise flow regulation.
✅ Robust Material Construction: The body and disc are manufactured from high-strength materials like WCB (Carbon Steel) or various grades of Stainless Steel (CF8/CF8M), providing excellent mechanical strength and corrosion resistance suitable for non-corrosive and mildly corrosive fluid service.
Parameters
Industry Applications
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Water Treatment
Chemical dosing (chlorine, pH adjusters), filtration systems -
Chemical Processing
Acid/alkali transfer, solvent blending lines -
HVAC Systems
Chilled water control, heat recovery units -
Aquaculture
Seawater flow diversion, ozone injection -
Plating Plants
Electrolyte management, waste neutralization
Browse our case studies or talk directly with our engineers to discuss your application.
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