Patterson-Kelley 26-0000-0297 Pressure Switch

The Patterson-Kelley 26-0000-0297 High Gas Pressure Switch is a critical safety component designed for heavy-duty commercial boiler gas trains. Engineered to monitor inlet gas pressure, this OEM replacement part ensures that your heating system operates within safe hydraulic and pneumatic parameters. This switch is typically integrated into the NURO control system or legacy Patterson-Kelley platforms, where it functions as a manual-reset safety limit to prevent overfire conditions and potential damage to the gas valve train or burner assembly.

Built for precision, the 26-0000-0297 pressure switch detects excessive pressure spikes that exceed the specified set point, immediately interrupting the burner ignition sequence to provide fail-safe protection. For field technicians, this component offers reliable performance in high-demand environments, including P-K SONIC and P-K STORM boiler applications. Utilizing a genuine Patterson-Kelley pressure switch maintains the integrity of the original equipment's combustion safety profile and prevents unnecessary downtime caused by inconsistent secondary market components.

Key Benefits:

• Ensures combustion safety by preventing overpressure in the gas line.
• Direct OEM replacement for seamless compatibility with Patterson-Kelley hydronic systems.
• Supports manual reset functionality for positive lockout and professional diagnostic verification.
• Designed for integration with high-efficiency commercial boilers and water heaters.
• Durable construction maintains calibration accuracy in rigorous mechanical room conditions.

Common Questions:

What causes a high gas pressure switch to trip on a Patterson-Kelley boiler?

Trips are typically caused by a malfunctioning upstream gas pressure regulator, a sudden surge in building supply pressure, or an improperly adjusted gas manifold. If the 26-0000-0297 trips, a full inspection of the gas train regulators is required before resetting.

How do I reset the 26-0000-0297 switch?

This is a manual-reset safety device. Once gas pressure returns to the normal operating range, the technician must manually depress the reset button on the switch housing to clear the HIGH GAS PRESSURE lockout on the boiler control interface.

Can this switch be used for both Natural Gas and Propane (LP) systems?

Yes, the switch is compatible with multiple fuel types provided the system operating pressure is within the adjustable range of the switch and adheres to the boiler’s maximum inlet pressure rating of 14 inches W.C.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.