CI Fire Door Heat Resistant Supplier In Raiganj

CI Boiler Fire Door for High-Temperature Combustion Units

We are supplying CI casting boiler fire doors manufactured to withstand direct flame exposure, radiant heat, and ash-laden environments in solid fuel and oil-fired boilers. These doors provide front-end combustion access and flame regulation for large and small boiler systems.

Built from high-grade cast iron, each unit offers heavy-duty thermal resistance with precise sealing. The solid body minimizes warping or distortion during prolonged furnace operation, even under extreme pressure and soot accumulation.

The fire doors are cast in a single-body mold or a split-body mold, depending on access size and boiler capacity. Surface hardening, ash barrier lips, and gasket seating help maintain firebox pressure and combustion efficiency.

Long-Term Thermal Durability

These fire doors are used in zones where direct flame, soot, and pressure demand robust enclosure parts. Manufactured with sand-casting methods for dimensional consistency and service reliability.

Features

• Made from high-strength cast iron with flake graphite
• Flame-resistant up to 900°C continuous operation
• Hinged or bolt-fixed assembly with locking latch
• Available in solid, split, or inspection port models
• Heat-resistant coating or enamel finish (optional)
• Gasket seating groove for an airtight fit
• Suitable for manual and semi-automatic boilers

Applications

Fire tube and water tube boilers

Solid fuel, biomass, or coal-fired combustion chambers

Steam boiler front-end access doors

Kilns and furnace entry points in ceramic units

Ash removal or stoking panels in small industrial boilers

Retrofitting in foundries and thermal plants

Agro-waste or oil-based heating systems

We offer customizable hinge positions (left/right), handle types, door sizes, and ash-lip geometries. Optional ceramic fiber seals, refractory lining, and high-heat gaskets are available. Holes for sight glass or air nozzles can also be included upon request.