DanfossOil Preheaters

Danfoss FPHB3 Flame Detector

Technical specs, application notes, replacement checks, and related model references.

Product Overview

The Danfoss FPHB3 is a specialized PTC (Positive Temperature Coefficient) oil preheater designed to optimize the viscosity and atomization of light fuel oil prior to combustion. By precisely regulating the oil temperature at the nozzle head, it ensures a highly uniform spray pattern, virtually eliminating cold-start smoking and significantly reducing soot emissions. Its self-regulating PTC element provides intrinsic safety against overheating, making it an essential efficiency upgrade for modern, environmentally conscious oil burner applications.

Technical Specifications

Application

Light Oil Preheating

Heating Element

Self-regulating PTC (Positive Temperature Coefficient)

Function

Improves atomization, reduces soot/smoke

Operating Voltage

230V AC

Approvals

CE Compliant

Selection Notes & Data Verification

The FPHB3 page is structured for engineering comparison: confirm the product type, firing range, fuel type, operating mode, electrical supply, and safety approvals against the manufacturer datasheet before specifying the burner or component.

Burner.wiki normalizes product data for discovery and comparison, but final selection should account for combustion chamber backpressure, local emission limits, control sequence requirements, and site commissioning conditions.

Typical Applications

Industrial Boilers
Process Heating
Furnaces & Kilns
Thermal Oxidizers

Related Models

Related Knowledge

FAQ

What is Danfoss FPHB3 used for?

Danfoss FPHB3 is referenced as a flame detector for industrial combustion systems. Verify the exact application against the burner documentation, control cabinet wiring, and manufacturer datasheet.

Can FPHB3 replace another model?

Replacement depends on voltage, safety timing, wiring terminals, flame supervision method, mechanical fit, and local combustion safety requirements.

What should be checked before installing FPHB3?

Check supply voltage, burner sequence, fuel type, pressure or capacity range, detector compatibility, safety loop configuration, and the equipment nameplate before commissioning.

Documentation Note

Technical documentation should be verified against the manufacturer datasheet, burner cabinet wiring diagram, and equipment nameplate before installation or replacement.

Before replacement
  • Check supply voltage and frequency.
  • Confirm terminal layout and safety interlocks.
  • Verify flame detector or actuator compatibility.

Need Engineering Help?

Our experts can help you verify if FPHB3 fits your combustion chamber and backpressure requirements.

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