Electric Actuated Lug-Type High-Performance Butterfly Valve (Double Offset)
The DELCO Electric Actuated Lug High-Performance Butterfly Valve is engineered for critical bidirectional isolation and precise throttling control across industrial piping systems. Combining a double eccentric (double offset) geometry with a laminated metal-to-elastomer composite seat, it delivers bubble-tight shut-off (Zero Leakage), low operating torque, and significantly extended cycle life. Equipped with an intelligent industrial electric actuator, this valve offers reliable performance in water, oil, gas, steam, and chemical pipelines across power generation, petrochemical, metallurgy, and water treatment industries.
Size Range: DN40-DN1200
Material:Cast Iron, WCB, SS304/316 etc.
Connection Standard: GB / ANSI / JIS /DIN
Key Features & Advantages
✅ Double Eccentric Design for Minimum Friction & Wear The double offset disc geometry ensures that the disc quickly lifts off the seat upon initial opening, minimizing friction across the sealing contact surfaces, reducing operating torque, and dramatically prolonging service life.
✅ Bi-Directional Bubble-Tight Sealing (Zero Leakage) Featuring a precision-machined conical seat and advanced laminated sealing ring, the valve achieves a self-compensating "tighter-as-it-closes" seal under both high and low-pressure conditions.
✅ Full Lugged Body for Easy Dead-End Service The threaded lug design allows downstream pipework to be disassembled for maintenance or replacement while keeping upstream line pressure intact (dead-end service), minimizing plant downtime.
✅ Intelligent Electric Actuation & Precise Control
On/Off Type: Rapid, high-torque quarter-turn isolation for automated emergency or scheduled shut-off.
Modulating/Regulating Type: Accepts standard 4-20mA or 0-10V DC control signals for accurate flow and temperature modulation.
Features manual override, mechanical visual position indicator, and optional explosion-proof / smart bus protocol (Modbus/Profibus).
✅ Broad Media Compatibility & Severe Duty Compliance Available in ASTM-compliant WCB, CF8, CF8M, and duplex alloys to handle corrosive, high-temperature, or erosive fluid environments.
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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.
Why Partner with DELCO Valves
Driven by modern CNC precision, 100% pressure testing, and comprehensive international compliance, DELCO delivers high-performance automated flow control solutions engineered for demanding global infrastructure.
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