3000860 - Harris HP 750 Series Servo Dome Oxygen Regulator 0-500 PSIG

Precision Gas Control for Industrial Laser Systems

The Harris HP 750-500 Servo Dome Regulator (SKU: 3000860) represents the pinnacle of gas control technology for high-performance laser cutting applications. In the realm of industrial fabrication, the consistency of the assist gas—specifically Oxygen—is critical to maintaining cut quality, piercing speed, and edge finish. Traditional spring-loaded regulators often suffer from "droop," where the outlet pressure drops significantly as flow demand increases. The HP 750 series eliminates this issue through its advanced servo-dome loaded design.

Instead of relying on a mechanical spring to set the outlet pressure, this regulator uses a dome chamber loaded with a pilot gas pressure. This design allows the regulator to respond instantaneously to changes in flow demand, maintaining a flat pressure curve across the entire operating range. For laser operators, this means the pressure set at the controller is exactly the pressure delivered to the nozzle, whether the machine is in a low-flow piercing cycle or a high-speed cutting run. The "Servo" aspect implies that the dome pressure tracks and adjusts to maintain equilibrium, providing remote control capabilities often required by CNC integration.

Constructed from rugged brass barstock, the HP 750-500 is built to withstand the rigors of industrial environments. It is specifically cleaned and prepared for Oxygen service, ensuring safety and preventing contamination of the laser optics. With a delivery pressure range of up to 500 PSIG, it is capable of handling the high pressures required for cutting thick carbon steel plate. This unit is an OEM replacement part, ensuring perfect fit and function for systems originally specified with Harris gas equipment.

Technical Superiority

The dome-loaded architecture not only improves pressure stability but also allows for significantly higher flow rates compared to similarly sized spring regulators. This is essential for modern fiber lasers that demand high volumes of assist gas to clear molten material from the kerf efficiently. By minimizing pressure fluctuation, the Harris HP 750 helps reduce dross formation and rework, directly contributing to overall process efficiency.