Victor Type 55 Multi-Flame High-Capacity Heating Assembly – HD310C-55

High-capacity multi-flame heating assembly for the Victor HD 310C torch handle.
The Victor Type 55 HD310C-55 Heating Assembly is designed for heavy-duty heating applications requiring high heat output and broad flame coverage. Its multi-flame head distributes heat across the workpiece while the Type 55 mixer design helps provide consistent fuel-gas and oxygen flow.

The heating head features a raised center point that helps prevent the face of the head from being bumped directly against the workpiece and compressing the flame. Combined with the unique mixer design, this provides greater resistance to sustained backfire and improved flow performance.

Important: This heating assembly is designed for use with all compatible fuel gases EXCEPT acetylene and requires a 3/8" I.D. oxygen hose.

Key Features

• High-Capacity Heating: Designed for demanding heating applications requiring substantial heat output.
• Multi-Flame Design: Multiple flame ports provide broad, concentrated heating coverage.
• Victor HD 310C Compatibility: Designed for use with the Victor HD 310C torch handle.
• Raised Center Point: Helps prevent the heating head from contacting the workpiece and compressing the flame.
• Improved Backfire Resistance: Center-point and mixer design provide greater resistance to sustained backfire.
• Improved Flow Performance: Type 55 mixer design supports consistent gas flow during high-capacity heating.
• Alternative Fuel Gas Compatible: Designed for compatible fuel gases other than acetylene.
• Heavy-Duty Construction: Built for professional heating and fabrication applications.

Fuel Gas Compatibility

Important: Do not use this Type 55 heating assembly with acetylene. Verify that the torch, regulators, hoses, fittings, and other components in the system are approved for the fuel gas being used.

Raised Center-Point Design

The Type 55 heating head features a raised center point designed to help prevent the face of the heating head from being accidentally pushed directly against a plate or workpiece.

Keeping the flame outlets away from direct contact with the workpiece helps prevent flame compression while maintaining proper gas flow from the multi-flame head.

Multi-Flame Heating

The Type 55 Series uses multiple flame outlets to deliver high-capacity heat across the work area. This makes the assembly useful for applications where broader heating coverage is needed compared with a conventional single-flame torch tip.

Product Specifications

Common Applications

• Heavy-duty metal heating
• Preheating before welding
• Fabrication and repair
• Industrial heating
• Large workpiece heating
• Maintenance applications
• Applications requiring broad multi-flame heat coverage

Frequently Asked Questions

What torch handle does the HD310C-55 fit?
The heating assembly is designed for use with the Victor HD 310C torch handle.

Can I use the HD310C-55 with acetylene?
No. This Type 55 heating assembly is intended for compatible fuel gases except acetylene.

What size oxygen hose is required?
This setup requires a 3/8" I.D. oxygen hose.

Why does the heating head have a raised center point?
The raised center point helps prevent the face of the heating head from being bumped directly against the workpiece and compressing the flame.

What is the advantage of the Type 55 mixer design?
The center-point and mixer design work together to provide greater resistance to sustained backfire and improved flow performance.

Is this a single-flame heating tip?
No. The HD310C-55 is a multi-flame, high-capacity heating assembly designed to distribute heat across the work area.