During the past few years it's generally been accepted that analogue float type flow meters cannot always provide an accurate indication of performance when used in low flow rate applications. But SMC says its R&D experts have developed a solution that means this is no longer the case.
Developed initially to detect microchip component adsorption in vacuum and early clogging in both filter and nozzle applications, the new Series PFM7 flow switch is both compact and lightweight compared to existing flow sensors thanks to its micro electro mechanical system (MEMS) sensor. With its unique integrated flow adjustment valve, which can be added or disconnected by simply removing its retaining clip, linear flow rate can be adjusted manually by rotating the flow rate adjustment knob.
Further features of the PFM7 are the dual colour digital display which indicates any performance irregularities at a glance. Also, due to its MEMS sensor, both straight or elbow piping options are possible making this the perfect flow switch when space limitations are an issue.
Currently the PFM7 range is available in four maximum flow rate options - 10, 25, 50 and 100 l/min. It is suitable for use with air, nitrogen, argon or carbon dioxide.
