Cleveland Controls DFS-448-452 Sensing Switch 321702-401 This 1/2-inch NPT gas valve

This 1/2-inch NPT gas valve features a compact 3-13/16" swing radius

this switch eliminates "dry run" conditions that can lead to pump failure and ensures total flood protection for the facility

Built to handle standard 208/230V input

The 663579R is the distributor body assembly

preventing the fan from shutting down after the cool-down cycle

Cleveland Controls DFS-448-452 Sensing Switch 321702-401 This 1/2-inch NPT gas valveThe Cleveland Controls DFS 448 452 is a fixed set point air pressure sensing switch designed for critical airflow proving in duct heaters, air handlers, and energy management systems. Engineered for technicians who need a "set and forget" solution, this differential pressure switch features a non adjustable set point of 0. 05" W. C. (+0. 025 0. 005"), ensuring precise activation when system pressures rise. Its SPDT snap acting switch allows for