Roth Pump is the leading developer and manufacture of Low NPSH regenerative turbine pumps. For over 90 years Roth has been pumping high head (up to 2300 Ft/700 m TDH), low flow rates (up to 150 GPM/34 m3/hr) of boiling point liquids. Use of Roth 1 Ft/0.30 m Low NPSH pumps, significantly reduces tank height, which lowers construction costs. Chemical Process Pumps are built to API 610 & 685 standards. Boiler feed water, condensate return systems at 212°F/100°C, 250°F/121°C, 350°F/177°C.