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Electric Damper Butterfly Valve (DN40-DN1200) - For Air & Flue Gas Control | DELCO

The DELCO DK56-DP is a specialized Motorized Damper Butterfly Valve designed for the regulation of low-pressure air, flue gas, and dusty ventilation systems. Featuring a lightweight disc and low-torque design, it is powered by the DELCO-10 Electric Actuator for efficient automated airflow control. Available in DN40–DN1200 with Cast Iron/WCB/SS bodies, fitting standard ANSI/DIN/JIS wafer connections for HVAC and industrial exhaust lines.

point Size Range: DN40-DN1200
point Material:Cast Iron, WCB, SS304/316 etc.
point Connection Standard:GB / ANSl /JIS /DIN
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Features

Engineered for ventilation and exhaust systems, combining low-resistance flow control with reliable electric automation:

✅Optimized for Air & Gas Regulation
Unlike standard liquid valves, this damper is specifically engineered for low-pressure gas media (< 0.25 Mpa). It allows for precise modulation of airflow in HVAC ducts, desulfurization (FGD) systems, and industrial exhaust stacks with minimal pressure loss.
✅Lightweight Disc & Low Torque
The streamlined valve disc design reduces weight and flow resistance. This low-torque characteristic allows for the use of compact electric actuators (DELCO-10 Series), significantly reducing energy consumption and equipment cost compared to heavy-duty liquid valves.
✅Smart Electric Automation
Integrated with the DELCO Electric Actuator, featuring a high-visibility indicator and manual override. It supports On/Off or 4-20mA Modulating control to maintain optimal air-to-fuel ratios in burners or stable static pressure in ventilation ducts.
✅Durable Construction for Industrial Exhaust
Available in materials ranging from Cast Iron for standard HVAC air to Stainless Steel (304/316) for corrosive flue gases. The simple structure prevents dust accumulation, making it ideal for particulate-laden environments.
✅Space-Saving Wafer Connection
The compact wafer-style body fits easily between standard pipe flanges (GB, ANSI, DIN), reducing installation space requirements in tight plenum chambers or crowded mechanical rooms.

  • DK56-DP DELCO Electric Damper Butterfly Valve
    DK56-DP DELCO Electric Damper Butterfly Valve
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Industry Applications

  • Oil & Gas
    Electric actuators enable reliable remote shutoff and precise positioning for pipeline and process valves. Optional on/off or modulating control with feedback signals.
  • Chemical & Petrochemical
    Stable electric actuation for corrosive-duty applications. Supports modulating control and position feedback to match PLC/DCS requirements.
  • Power Generation
    Designed for power plants where dependable actuation and accurate positioning are required on steam/water auxiliary lines and balance-of-plant systems.
  • Food & Pharmaceutical
    Electric actuation for sanitary valve automation. Clean operation with configurable control and feedback—confirm enclosure and material requirements by application.
  • Water & Wastewater
    Ideal for treatment plants and pump stations—remote on/off or modulating control, position indication/feedback, and continuous field operation.
  • HVAC & District Heating
    Accurate valve actuation for energy-efficient HVAC networks. Smooth flow regulation with modulating control options.

Browse our case studies or talk directly with our engineers to discuss your application.

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