Antunes Controls 803112703 Pressure Switch

The Antunes Controls 803112703 (Model RLGP-A) is a heavy-duty low gas pressure switch designed for monitoring commercial burner circuits and industrial gas manifolds. This auto-reset SPDT switch operates within a precise range of 6" to 24" W.C., ensuring gas pressure remains within required safety parameters. Featuring a 1/4" NPT process connection and a 1/8" NPT vent, the 803112703 provides high-accuracy set point reliability for natural gas, liquid propane (LP), and air applications. The SPDT electrical configuration allows for integration into safety interlock strings or local alarm circuits, triggering an immediate shutdown if pressure drops below the calibrated threshold. Built for longevity in mechanical rooms, this RLGP-A pressure switch is a standard replacement component for many large-scale commercial boilers and furnaces requiring FM, UL, or CSA approved safety controls.

• Broad Set Point Range: Adjustable from 6" to 24" W.C. for versatile system tuning.
• Automatic Reset Logic: Resumes normal operation once pressure rises above the set differential, reducing unnecessary service calls.
• Robust SPDT Switches: Rated for high-cycle industrial use with reliable electrical contact switching.
• Industry Standard Connections: 1/4" NPT bottom inlet and 1/8" NPT vent ports facilitate standard field piping.
• Multi-Fuel Compatibility: Engineered for use with natural gas, LP gas, and air systems.

What is the maximum surge pressure for the RLGP-A?
The Antunes 803112703 is typically rated for a maximum surge pressure of 15 PSI; exceeding this may damage the internal diaphragm.

Can this switch be mounted in any orientation?
For maximum set point accuracy, it is recommended to mount the switch with the diaphragm in a vertical position, as horizontal mounting can shift the calibration due to the weight of the internal components.

Does this unit require a separate vent limiter?
While it features a 1/8" NPT vent connection, local codes may still require a dedicated vent line to the atmosphere depending on the installation environment.

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.