ES Capacity up to 180KW/550PPH, 100PSIG and 15PSIG. 12kW-180kW from 36PPH to 542PPH MBA Small capacity through 20KW 60PPH, 100PSIG max. 3kW-20kW from 9PPH to 60PPH SVS High pressure capacity up to 1000KW/250PSIG. 12kW - 1650kW from 36PPH to 4966PPH