Siemens Combustion AGR450240650 U.V. Tube 322838-754 and TQ 20 series parts

and TQ 20 series parts program

heat-resistant materials capable of withstanding the rigorous duty cycles of residential heating

Engineered for commercial HVAC applications

Remote Sensing: The 36-inch capillary and 3/8" x 6" remote bulb sensing element allow for flexible placement in complex ductwork or tanks

using genuine ASCO replacement hardware is critical for maintaining the pressure ratings of your valve body

Siemens Combustion AGR450240650 U.V. Tube 322838-754 and TQ 20 series partsThe Siemens Combustion AGR450240650 U. V. Tube is a high precision replacement phototube engineered for industrial and commercial flame monitoring. Designed as a critical sensing component for Siemens UV Flame Detectors, this tube detects ultraviolet radiation in the 190 to 270 nm spectral range. It is the primary replacement cell for several QRA series detectors, including the QRA2M, QRA10M, and QRA51M models. When integrated into the burner's flame