Plunger Diameter	Displacement at Pump Strokes Per Minute
	50		100		200		300		350
inches	gpm	psi	gpm	psi	gpm	psi	gpm	psi	gpm	psi
3-3/4	36	10,150	72	7,658	143	3,829	215	2,553	251	2,190
4	41	8,700	82	6,715	163	3,365	245	2,234	286	1,915
4-1/2	52	7,250	103	5,308	207	2,654	310	1,769	366	1,523
5	64	5,500	128	4,293	255	2,147	383	1,436	446	1,233

 

Ratings are based on 90% mechanical efficiency and 100% volumetric efficiency.