The PO 4000 series positive displacement rotary vane pumps are available with stainless steel housings and with 1” GAS or NPT ports. The nominal flow rates range between 1000 and 2300 l/h at 1450 rpm. Any vane pump of this series may be operated at 1725 rpm as well and will provide about 20% more capacity, with a maximum of 2700 l/h (720 GPH). Maximum discharge pressure is 18 bar (260 psi). This series mounts directly to widely available M80, M90 IEC and NEMA 56C motors by means of an adapter and relevant coupling.