Hi All - First Post

I've noticed in the compressor data sheets that the capacity is given ~(say 8cc) but no reference to the speed or rpm of the device. Do most domestic compressors run at a constant speed ?, and short of measuring it is there any easy way to tell. For reference I have two compressors that I would like to know the speed of, a Danfoss NLE10KK.2, and an Aspera NB1117Z. As these are synchronous motors and I live in the UK I'm guessing it will be a fraction of 50Hz depending on the number of poles. So if a 6 pole motor (my guess) maybe 500 rpm ?.

Any info much appreciated.

Best Regards

Picclock