0790-0214 - Victor ESS3 Regulator Replacement Knob Black with Decal

Technical Overview: Victor 0790-0214 Replacement Knob

The Victor 0790-0214 is the designated replacement adjustment knob for the Victor ESS3 Series regulators, often referred to as the Edge Series. These regulators are a staple in the welding and fabrication industry, known for their user-friendly design and robust construction. The adjustment knob plays a critical mechanical role in the operation of the regulator. It applies force to the range spring, which in turn acts upon the diaphragm to control the outlet pressure. A compromised knob—whether cracked, stripped, or missing—renders the regulator unusable or unsafe, as it prevents the operator from accurately setting or shutting off the gas pressure.

This assembly includes the black control knob and the corresponding decal, ensuring that the regulator retains its original appearance and informational markings. The ESS3 series features a color-coded system for easy identification of gas types and pressure ranges; this black knob is typically associated with specific gas service configurations within the Edge line. The material construction is a high-density polymer designed to resist impact, UV exposure, and chemical degradation from common shop fluids. The ergonomic shape is engineered to provide a positive grip, even when the operator is wearing heavy welding gloves, facilitating precise adjustments of delivery pressure.

Maintenance of gas regulation equipment is a critical aspect of shop safety. When replacing the 0790-0214 knob, it is important to ensure that the bonnet and internal threads of the regulator are clean and undamaged. This OEM part guarantees correct thread engagement and proper seating, eliminating the play or binding often found with generic aftermarket replacements. By utilizing genuine Victor components, you maintain the UL listing and safety ratings of the device. This part is an exact match for the original specification, ensuring that the pressure adjustment mechanism operates smoothly across its entire range, from zero to the maximum rated delivery pressure.