The 1980 series features a robust construction utilizing a combination of copper and nickel alloys to ensure maximum electrical conductivity and a consistent 30mV output for reliable gas valve operation

Precise Chain Alignment: Maintains the correct drive chain angle

this component is critical for maintaining the specific gas-to-air ratio required for stable pilot flame ignition in Weil McLain EG boilers and CG series units

Common signs include a "bulged" top

Common Service Questions What causes this limit switch to trip frequently

Armstrong International 811G Gasket The 1980 series features aThe Armstrong International 811G Gasket is a critical sealing component engineered for high pressure steam trap maintenance within the TVS811 inverted bucket trap series. Designed to withstand the thermal cycling and high velocity condensate flow inherent in modern HVAC steam systems, this gasket ensures a pressure tight seal between the trap body and the cap. Formulated from high grade graphite or reinforced synthetic fibersdepending on the specific