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The Sensus 071-03409-002 Green Spring is the heavy-duty OEM solution specifically calibrated for Sensus 043B and 496 gas regulators
the limit switch likely detected an over-temperature event
it is time for a new unit
and aging compared to standard Buna-N or neoprene seals
effectively removing the need for auxiliary barb fittings during field testing
Lochinvar & A.O. Smith 100133547 Flange Gasket The Sensus 071-03409-002 Green SpringThe Lochinvar & A. O. Smith 100133547 Flange Gasket is a critical high temperature seal designed for commercial water heaters and boiler systems. Specifically engineered for Armstrong ARM1013 cross compatibility, this gasket pair ensures a leak proof interface between the pump flange and the circulation piping. In low and high pressure hydronic loops, maintaining a rigid seal is essential to prevent cavitation and pressure drops. These gaskets are