Antunes Controls 803112603 Pressure Switch

The Antunes Controls 803112603 is a precision-engineered HGP-A High Gas Pressure Switch designed for monitoring gas pressure levels in industrial and commercial burner systems. This SPDT high gas pressure switch features a 10-50" W.C. adjustment range, providing a critical safety interlock that triggers a manual reset when pressure exceeds the specified set point. Built with a 1/4" NPT inlet connection and a 1/8" NPT vent, this unit ensures reliable integration into existing gas trains. The Antunes 803112603 pressure switch is constructed to maintain calibration under high-cycle conditions, making it a standard choice for contractors servicing high-output boilers and heaters. By utilizing manual reset gas pressure switches, technicians can ensure that equipment does not restart until the underlying overpressure condition is diagnosed and cleared, preventing damage to downstream components. This HVAC gas pressure safety switch is rated for natural gas, LP, and air, offering versatile field application for rigorous high gas pressure monitoring requirements.

Key Benefits for Technicians

• Adjustable Range: Provides precise 10" to 50" Water Column set points for variable system requirements.
• Manual Reset Safety: Prevents automatic recycling of equipment during high-pressure faults to ensure technician inspection.
• Durable Construction: Engineered with a robust housing and high-quality internal diaphragm for long-term set point stability.
• Standard Fitting: Features a 1/4" NPT process connection for simple installation on standard gas manifolds.
• Versatile Compatibility: Suitable for use in systems handling air, natural gas, or liquefied petroleum gas.

Common Questions

How do I adjust the pressure set point on the Antunes HGP-A?
Remove the top cover and turn the adjustment dial to the desired "W.C. setting indicated on the scale; always verify the trip point with a properly calibrated manometer during commissioning.

Can this switch be used for low gas pressure applications?
No, this is an HGP-A high-pressure model designed to trip on a rise in pressure; a dedicated LGP-A model is required for low-pressure sensing.

What is the purpose of the 1/8" NPT vent port?
The vent port allows for the connection of a vent line to a safe outdoor location or the installation of a vent limiter, as required by local mechanical codes for indoor gas train installations.

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.