0459990129 - ESAB PSF Series Conical Gas Nozzle 16mm Flush

Industrial Grade ESAB MIG Consumable

The ESAB 0459990129 is a high-specification conical flush nozzle designed for professional industrial environments. Engineered with a 16mm (NW 16) bore, this component is a critical element in the shielding gas delivery system of ESAB's renowned PSF series MIG torches. In maintenance and repair operations (MRO), using genuine OEM consumables is vital for maintaining the duty cycle and reliability of welding equipment. This nozzle is manufactured from a robust copper alloy that provides excellent thermal conductivity, rapidly dissipating heat generated during the welding arc to prevent overheating and deformation of the torch front-end.

The "flush" designation indicates that when installed, the contact tip sits flush with the nozzle exit. This configuration is widely regarded as the standard for general fabrication, offering a balanced compromise between gas coverage and electrode stick-out. It allows the operator to maintain a consistent contact-tip-to-work distance (CTWD) while ensuring the gas envelope remains coherent around the weld pool. For procurement managers and tool crib supervisors, stocking the 0459990129 ensures compatibility with a broad fleet of ESAB equipment, specifically the PSF 305, PSF 405, and PSF 505 guns, reducing the complexity of inventory management.

Durability is a key feature of this unit. The surface finish is designed to resist the adhesion of molten spatter, which is a common cause of gas flow blockage in inferior nozzles. Regular maintenance involves simple mechanical cleaning or the application of anti-spatter compounds, but the base material quality of this ESAB nozzle ensures it withstands the mechanical stress of cleaning better than budget alternatives. Whether used in automated setups or manual welding stations, this nozzle delivers the consistency required for ISO-certified production environments.

Key Technical Benefits:

• Thermal Management: Superior heat dissipation extends the life of both the nozzle and the internal insulator.


• Gas Dynamics: The internal geometry is machined to smooth the flow of shielding gas, reducing turbulence that can lead to weld defects.


• OEM Fitment: Guaranteed thread engagement and concentricity with ESAB PSF torch necks.