ASCO 306-191 Rebuild Kit 30067439-890 it prevents heat exchanger damage

it prevents heat exchanger damage by disrupting the burner circuit when internal plenum temperatures exceed safe thresholds

This allows the vent limit switch to be wired in series with the thermocouple signal

Complete Installation Hardware: Includes a high-grade O-ring and protective cap to prevent gas leaks and satisfy safety inspections

By replacing critical internal parts such as the diaphragm

ASCO 306-191 Rebuild Kit 30067439-890 it prevents heat exchanger damageThe ASCO 306 191 Rebuild Kit is a crucial maintenance solution specifically engineered for 8342 Series solenoid valves. This high performance ASCO valve repair kit includes essential internal componentssuch as the flux plate, spring washer, yoke, and retaining clipsdesigned to restore leak free operation and pressure integrity to your pneumatic systems. As a genuine solenoid valve service kit, it ensures a precise fit for screw type manual operator