The Inline style thermal mass flow switch assembly includes the flow sensing element, temperature sensing element, bridge amplifier/signal output board, transmitter enclosure, and flow section. The flow section is typically specified to match the user’s flow conduit and is plumbed directly in the flow line. This design has the sensing elements mounted directly in the flow section for exposure to the process flow.
Inline flow switches are available in sizes from 1/4″ pipe through 4″ pipe and are provided with threaded male NPT ends as the standard mounting style. Optional end mounting styles may be specified, such as tube ends, tube end fittings, butt weld ends, flanged end configurations, etc. as required. Pipe sizes in excess of 4″ require insertion style thermal mass flow switches.