The TSFR 300-400 series integrates positive displacement rotary vane pumps with a high efficiency variable speed motor with external controller. The electromagnetic drive, with no moving parts in the motor and no dynamic seals in the pump, makes the TSFR an exceptionally reliable product with a long service life. Pumps are available with brass or stainless steel housing, 3/8” GAS or NPT ports and internal relief valve. The nominal flow rates range between 300 and 400 l/h at 1450 rpm. These pumps will provide flow proportional to speed, with a maximum of 1100 l/h (290 GPH) The motor is capable of both 110 and 230 V AC and 50/60 Hz operation.