Armstrong International B1669-2 Pressure Change Assembly Els PW 17895 or visible debris accumulation on

or visible debris accumulation on the blades that disrupts the laminar flow

This vertical mount thermostat features a simplified two-piece design that eliminates the need for a sub-base

With a maximum pressure rating of 1/2 PSI

reducing nuisance service calls caused by pilot failure

Armstrong International B1669-2 Pressure Change Assembly Els PW 17895 or visible debris accumulation onThe Armstrong International B1669 2 Pressure Change Assembly is a precision engineered internal repair kit designed to restore the seal and mechanical operation of high performance inverted bucket steam traps. Featuring a 3 16" orifice, this assembly is critical for maintaining the correct discharge capacity and pressure differential in models across the Armstrong 211, 310, 800, 811, 880, and 981 series, including the TVS 811 and EM variations. This