... power end, fluid end assembly and speed reducer assembly, the plungers of 5'', 4 1/2'', 4'' and 3 3/4 ... Per Minute50100200300350inchesgpmpsigpmpsigpmpsigpmpsigpmpsi3 3/43610,15072765814338292152553251219044187008267151633365245223428619154 1/2527250103530820726543101769366152356455001284293255214738314364461233 300HP Triplex Plunger Pumps