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it provides the mechanical longevity required for high-cycle applications
ensuring reliable signal transmission for proportional temperature control
the switch is calibrated to open at 150°F to prevent heat exchanger damage and close at 120°F once safe operating temperatures are restored
Is the lens replaceable
Common Questions Is the 046-00-021-00 interchangeable with other Sensus springs
McDonnell & Miller 304400 Cover it provides the mechanical longevityThe McDonnell & Miller 304400 is a genuine replacement flow switch cover (Model FS4 3COV) engineered specifically for Xylem FS4 3 liquid flow switches and the AF 1, AF 2, and AF 3 airflow switch series. In demanding commercial boiler and process piping environments, maintaining the integrity of the switch housing is critical for protecting the single pole, double throw (SPDT) snap switch and internal sensitivity adjustments from dust, moisture, and
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