DTL Butterfly dampers provide a simple and cost effective method of control and isolation. Various sealing arrangements, including seal air fan, can be used so we can provide the correct sealing efficiency required for your application. Our products are generally manufactured in Carbon Steel or Stainless steel, however for special applications we can utilise any material to suit your requirements such as 800HT, 310S, Alloy 31, Alloy 59… Our Butterfly dampers can be actuated pneumatically, electrically or manually via a simple hand lever or reduction gearbox. We can offer bespoke butterfly dampers as well as standard products, to suit your requirements. Butterfly dampers are typically used in low pressure flow control environments, but DTL can provide PED compliant damper valves for higher pressure applications, high specification dampers for extreme temperatures, and specially designed dampers for use in corrosive process conditions.
Typical Applications For Butterfly Dampers
Exhaust systems
Air ducting
Gas Mixing
Tunnel Ventilation
Any application that requires isolation or control of gas flows!
Technical Specifications
Pressure: Typically 50Kpa (0.5 barG) however we can design for higher on request
Temperature: Typically 600°C (1112°F) up to 1250°C (2282°F) on request
Materials: Carbon steel or stainless steel as standard, with optional chrome moly or higher specification alloys for extreme temperatures or corrosive environments
Features
Round or rectangular design
Fully welded body
Specially engineered compact design
On/off or modulating
Typical range from DN300 to DN3000 (other sizes available on request)
Pneumatically actuated (Electric actuators also available on request)
Optional Extras
Pneumatic cabinet
Maintenance free bearings
End connections: Flanged to fit ANSI, EN, JIS standards
Flexible metallic seals to increase sealing efficiency
Seal air for 100% sealing
Refractory lining for hot process applications
Certificates
DNV-GL approved
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