Cleveland Controls DFS-221-228 Pressure Switch Maintenance Efficiency: Quarter-turn actuation with

Maintenance Efficiency: Quarter-turn actuation with internal forged stops provides immediate positive shut-off

as an OEM part

By facilitating continuous air venting

including the 143-80-1

contractors should verify local lead-free compliance codes as specialized "LF" lead-free models are typically required for those applications

Cleveland Controls DFS-221-228 Pressure Switch Maintenance Efficiency: Quarter-turn actuation withThe Cleveland Controls DFS 221 228 is a high reliability, non adjustable airflow proving switch designed for critical monitoring in duct heaters, ovens, and sophisticated energy management systems. Engineered for technicians who require a "set and forget" solution, this SPDT air pressure switch is factory fixed to operate on a pressure rise of 0. 05 0. 02" w. c., ensuring precise safety interlocks. Its compact, open mounted design is specifically