BFS-10-N-AIR / BFS-10-O-AIR Air and Gas Flow Switches
Barksdale BFS-10-N-AIR and BFS-10-O-AIR switches monitor gaseous media in cooling systems, test equipment and related flow-protection applications. The spring-loaded variable-area mechanism allows any mounting position and an adjustable switching point.
The N-AIR version operates without optical indication; the O-AIR version includes a local optical display. Flow ranges are specified in normal litres per minute and must be selected for the process connection.
Select & Configure Model
| Base Model # | Medium / Service | Switching Range | Process Connection | Pressure Limit | Switch Contacts | Configure Part # |
| BFS-10-N-AIR | Air / gas; no optical display | 0.6–2.2 to 200–650 Nl/min | G1/4, G1/2 or G1 | 250–350 bar; variant dependent | NO or SPDT | |
| BFS-10-O-AIR | Air / gas; optical display | 0.2–1.3 to 200–625 Nl/min | G1/4, G1/2 or G1 | 16 bar G1/4–G1/2; 10 bar G1 | NO or SPDT |





