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Guillotine Dampers
Guillotine Dampers

Guillotine Dampers

Absolute Positive Isolation for Industrial Air and Gas Systems

Fibros Heavy-Duty Guillotine Dampers are engineered to provide reliable, drop-tight isolation within large-scale ductwork and exhaust stacks. Designed to physically sever the flow of high-velocity, high-temperature gases, these dampers are critical for maintenance safety and process control. Whether isolating a massive centrifugal fan outlet or shutting off a high-temperature boiler exhaust line, our guillotine dampers ensure zero gas bypass and protect downstream personnel and equipment.

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  • Technical Specifications
  • Features
  • Industry Applications
Valve Type Guillotine Damper / Slide Gate Isolation Damper
Size Range Custom-engineered for large duct profiles (scaling up to 3000mm+)
Design Pressure Standard low-to-medium pressure duct systems (Custom high-pressure reinforced frames available)
Operating Temperature Up to 400°C standard (customized configurations for higher temperatures)
Body / Frame Material Mild Steel (IS 2062), Stainless Steel (SS304/SS316), Alloy Steels
Blade Material Hardox, EN Series Alloy Steel, Heat-Resistant Stainless Steel
Seat / Sealing Type Flexible metallic leaf seals, high-temperature braided packing, or elastomer seals for cold gas
Flange Type Double Flanged (Square, Rectangular, or Round)
End Connection ANSI 150#, DIN, IS standard, or Custom-drilled to match existing duct profiles
Actuation Options Motorized (Electric Actuator), Heavy-Duty Pneumatic, Manual Handwheel with Gearbox

  • 100% Positive Isolation

  • Zero-Jamming Blade Mechanics

  • Extreme Temperature Integrity

  • Atmospheric & Internal Sealing

  • Robust Actuation & Drive Systems

  • Fan & Blower Isolation

  • Power Generation

  • Cement & Steel Manufacturing

  • Waste-to-Energy & Incineration

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