Sealed Combustion Design (SCD)
High-efficiency, hermetically isolated combustion systems engineered to draw 100% of combustion air from dedicated external intakes, eliminating facility air depletion and protecting burner chambers from corrosive industrial atmospheres.
Hermetic Air Isolation & Atmospheric Protection
Saudi Boilers Sealed Combustion Systems completely separate furnace air requirements from indoor plant atmospheres. By drawing fresh air directly from outdoors via sealed ductwork and venting flue products through a dedicated sealed stack, our units safeguard burner components from dust, chemical fumes, and ambient pressure fluctuations.
Hermetic Casing Barrier
Double-walled gas-tight insulation prevents heat radiation into the boiler room while isolating burner heads from ambient contaminants.
Balanced Draft Pressure Control
Synchronized forced draft fans maintain steady air-to-fuel ratios regardless of building HVAC pressure changes or wind velocity.
Engineered Sealed Combustion Subsystems
Direct Outside Air Intakes
Insulated dual-wall ductwork routes fresh atmospheric air directly to the burner windbox without drawing air from inside the facility.
Hermetic Positive Pressure Casing
Fully welded, pressure-tested outer boiler shell and windbox housing prevents volatile gases or room air from infiltrating the furnace.
Sealed Sight Glass & Flame Scanners
Quartz sight glass assemblies with cooling air purges enable safe visual inspection and UV/IR flame scanning without breaking isolation.
Expansion Bellows & Dampers
Flexible stainless steel duct bellows absorb thermal expansion stress while automated low-leakage isolation dampers prevent backdraft.
Uncompromising Hazardous Environment Protection
In refinery, chemical, and pharmaceutical processing plants, ambient air may contain volatile organic compounds (VOCs), sulfur dust, or corrosive chemical traces. Saudi Boilers Sealed Combustion Design completely shields the burner assembly and flame sensor pathways, guaranteeing compliance with Saudi Aramco SAES-N-100, NFPA 85 Boiler Hazard Code, and ASME Section I standards.
Commission a Sealed Air Intake Assessment
Connect with our Khobar Headquarters engineering team. We conduct ductwork pressure-drop calculations, air intake route modeling, and burner isolation retrofits to convert open-draw combustion units into ultra-safe sealed systems.
