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Heat Exchanger Door Burner hood Burner mounting bracket Vaillant BDR BAXI Front Door Plate Front Panel Pre-assembled Exchanger Door Kit
The door plate serves as the front sealing surface of the heat exchanger combustion chamber. It achieves an airtight seal via a high-temperature ceramic fiber gasket preventing:
Leakage of high-temperature flue gas
Cold air infiltration that would compromise combustion efficiency
Corrosion of adjacent components by acidic condensate (pH 3–5)
2. Burner Mounting Interface
The door plate integrates a premix burner mounting flange, which performs these critical functions:
Secures the fully premixed burner head
Houses a built-in air-gas manifold (Air-Gas Manifold)
Provides uniform air distribution channels for the premix fan
Ensures thorough premixing of fuel gas and air before entering the combustion chamber
3. Ignition & Flame Sensing Pass-Throughs
Precision ports/openings are incorporated into the door plate:
Electrode Port — passage for the ignition electrode (Ignition Electrode)
Flame Sensor Port / Ionization Electrode port — for ionization-based flame monitoring to ensure safe combustion operation
4. Thermal Insulation
The interior surface of the door plate is lined with a biosoluble fiber insulation layer (Biosoluble Fiber Insulation):
Reduces surface temperature (typically below 60°C), ensuring operator safety
Minimizes radiant heat loss, contributing to overall unit thermal efficiency
Withstands continuous temperatures of 1000°C or higher
5. Condensate Drainage Management
Condensing heat exchangers produce acidic condensate; the door plate is designed with:
A condensate collection trough
A drain outlet/port
Directs condensate flow toward neutralization treatment systems
6. Maintenance Access Point
Hinge or quick-release bolt design provides access to heat exchanger internals (finned tube bundles, flue passages, etc.)
Facilitates cleaning of soot deposits, replacement of seals, and inspection of tubing corrosion
Certificate
Product packaging
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2022
Total Annual:
60000-120000
Employee Number:
30~50
Ecer Certification:
Verified Supplier
Backed by more than two decades of specialized experience in thermal engineering and precision manufacturing, we operate as a fully integrated R&D and manufacturing enterprise.
· Customized stainless steel heat exchangers for fully premixed condensin...
Backed by more than two decades of specialized experience in thermal engineering and precision manufacturing, we operate as a fully integrated R&D and manufacturing enterprise.
· Customized stainless steel heat exchangers for fully premixed condensin...