Siemens Combustion QRA4.U Flame Detector 328140-751 Built with a heavy-duty bronze

Built with a heavy-duty bronze body (ASTM B584) and a silicone seat

The Aegis SGR-2

and valve shaft compatibility to ensure proper operation

Constructed for long-term reliability in high-cycle commercial heating environments

the Sporlan solenoid coil assembly includes color-coded leads and a dedicated grounding path within the junction box for safe electrical installation

Siemens Combustion QRA4.U Flame Detector 328140-751 Built with a heavy-duty bronzeThe Siemens Combustion QRA4. U Flame Detector is a industrial grade UV flame detection sensor designed for the continuous supervision of gas and oil flames. Specifically engineered for intermittent operation, this detector is a standard for technicians working with high demand industrial burners and commercial boiler systems. It features a high sensitivity UV cell capable of detecting radiation in the 190 to 270 nm spectral range, ensuring it remains