3200301 - Harris Model 8700 High Pressure Regulator | CGA 580 | 0-2500 PSIG Delivery

Technical Overview of the Harris Model 8700 High Pressure Regulator

The Harris Model 8700-2500-580 is a premium single-stage high pressure regulator engineered for demanding industrial applications requiring precise delivery pressures up to 2500 PSIG. Designed to interface with CGA 580 cylinders (Argon, Helium, Nitrogen), this regulator is constructed from solid brass barstock for both the body and bonnet, ensuring exceptional structural integrity and resistance to deformation under high torque or pressure loads.

At the core of the Model 8700 is a sophisticated one-piece encapsulated valve design. This cartridge-style assembly utilizes a PCTFE (Kel-F) seat, chosen for its high compressive strength and dimensional stability, which is critical for maintaining a leak-tight seal in high-pressure environments. To further protect this critical sealing surface, Harris integrates a 10-micron sintered bronze filter directly into the inlet. This filtration system effectively traps particulate contamination from the cylinder or gas stream, preventing seat scoring and extending the service life of the component.

The regulator features a urethane diaphragm which offers a balance of flexibility and strength, allowing for accurate pressure regulation across the delivery range. The unit is equipped with large, 2.5-inch brass gauges that provide clear dual-scale readings in both PSI and Bar, facilitating global usability. The outlet is configured with a standard 1/4" NPT female port, supplied with a stainless steel 1/4" tube fitting, making it immediately ready for integration into high-pressure tubing systems. This model is self-relieving, a critical safety feature for inert gas applications, allowing downstream pressure to be vented if the adjustment knob is backed off.