making it a preferred choice for residential and light commercial HVAC furnace repair

The Armstrong 811 series is primarily designed for horizontal in-line installation to ensure the bucket mechanism operates correctly with the force of gravity and buoyancy

Selectable Output Range: Simplifies inventory by providing dip-switch selectable 4-20mA

By stabilizing the cooling loop chemistry

Armstrong International 812-3/4-15 Trap Els PW 17895 making it a preferred choiceThe Armstrong International 812 3 4 15 Trap is a high performance inverted bucket steam trap engineered for reliable condensate management in low pressure steam systems. Featuring a rugged cast iron body and a 3 4" NPT connection, this 812 Series trap is specifically designed for 15 PSI applications with a 5 16" orifice. Its unique leverage system multiplies the force of the bucket to ensure a tight seal against system pressure, while the free