Air driven drum pump capable of flow rates up to 8 gallons per minute running at 60 cycles per minute - depending on materials and application. Viscosity Range: 60,000 - 250,000 centipoises, 10:1 Ratio, Maximum Fluid Working Pressure: 1,000 psi (70 Bar), Maximum Air Input Pressure: 100 psi (7 Bar). Equipped with 28" diameter ram plate and 2" OD threaded discharge.