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16K17 - ESAB Purox Style 4203-7 Propane Cutting Nozzle

Packaging: pack of 1
$82.37/EA $61.09/pack of 1 only $61.09/EASave 26%

Usually ships within 3-5 business days

OVERVIEW

Technical Overview: ESAB 16K17 (4203 #7) Cutting Tip

The ESAB 16K17 is a size #7 cutting tip from the 4203 series, specifically engineered for use with Propane and Natural Gas fuel sources. This nozzle is designed to be compatible with Purox style torch handles and attachments, offering a direct replacement for OEM specifications. The defining characteristic of this component is its one-piece solid copper construction. Utilizing hard-drawn, electrolytic tough pitch copper, the nozzle offers superior thermal conductivity compared to brass or tellurium copper alloys, allowing it to run cooler and resist the adhesion of spatter even during prolonged cutting operations.

Fluid Dynamics and Internal Geometry

Internal gas flow dynamics are optimized through a triple swaging process. This technique creates gas passages that are mirror-smooth, minimizing friction losses and turbulence within the tip. The internal angles are radiused to ensure laminar flow of the preheat gases and the cutting oxygen stream. This non-turbulent flow is critical for maintaining a cylindrical oxygen stream over a greater distance, which directly correlates to cleaner cut faces, sharper top edges, and reduced slag accumulation at the bottom of the kerf. The #7 size orifice is calibrated for general purpose cutting, providing a medium preheat intensity sufficient for beveling applications and piercing plate steel.

Maintenance and Serviceability

The 4203 series is designed with longevity in mind. The preheat passages are machined deep and parallel to the central axis. This geometric feature permits the face of the nozzle to be dressed (filed flat) to remove damage or obstruction without altering the flame characteristics or gas ratios. This re-dressability significantly extends the operational life of the consumable. The base of the tip features conical seating surfaces, which facilitate self-centering during installation and ensure a metal-to-metal gas-tight seal within the torch head, preventing backfires and leaks.

Application Specifications

  • Fuel Gas: Propane, Natural Gas
  • Tip Style: Purox 4203
  • Construction: One-piece Electrolytic Copper
  • Preheat Configuration: Medium intensity, closely spaced ports
  • Compatibility: Fits standard Purox style cutting attachments
Additional Information
Gas Service:Propane, Natural Gas
Tip Series:4203
Tip Size:#7
Brand Compatibility:Purox
Packaging Description:1 Per Ea
Material:Hard Drawn Electrolytic Copper
Construction:One-Piece
Preheat Type:Medium Preheat
Seat Type:Conical

INCLUDED

  • (1) 4203 #7 Propane/Natural Gas Cutting Tip

APPLICATIONS

  • General purpose steel cutting using Propane or Natural Gas
  • Beveling of plate steel for weld preparation
  • Structural steel fabrication and demolition
  • Scrap cutting and recycling operations
  • Maintenance and repair (MRO) in industrial facilities

FAQ

This nozzle is specifically designed for use with Propane or Natural Gas. It is not suitable for Acetylene.

The ESAB 4203 series features a one-piece solid copper construction, unlike many other propane tips which are two-piece.

Yes, the nozzle features long, parallel preheat passages that allow you to dress the face of the tip to remove spatter or damage without affecting the flame characteristics.

This nozzle is designed to fit Purox style cutting torches and attachments that accept the 4203 series tips.

Electrolytic tough pitch copper withstands heat and wear much better than copper alloys, providing maximum cooling and longer service life.

It uses conical seats for instant alignment and a tight seal. Ensure the nut is tightened securely to prevent leaks.

The #7 nozzle provides a medium preheat, which is sufficient for general purpose cutting and beveling applications.

Triple swaging creates mirror-smooth internal passages with rounded angles to ensure non-turbulent, efficient gas flow for cleaner cuts.