CombiTherm Plus pumps are designed to handle thermal fluids including mineral or synthetic heat transfer oil up to 660 °F at 360 PSI and hot water or glycol based thermal fluids up to 400 °F at 450 PSI without the need for expensive auxiliary cooling or shaft sealing systems.The optimized air cooling system, with shaft mounted cooling fan, ensures a low shaft seal temperature resulting in long service life and minimal down time.