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this component monitors internal heat exchanger temperatures
acting as the primary sensor for detecting the presence of a healthy flame through flame rectification
direct replacement part number for all legacy 221455A/U implementations
ensuring long-term repeatability in pneumatic valve positioners
Watts 0841005 SVA Vent this component monitors internal heatThe Watts 0841005 SVA Vent is a professional grade 1 8" angle vent engineered for high performance air removal in one pipe steam heating systems. As a technical replacement for standard non vacuum adjustable float type steam air vents, this unit features a heavy duty brass body and an internal brass float designed to withstand the rigors of commercial and residential steam mains. This adjustable steam air vent allows for precise proportional venting,