... ;300 gpm (1135 lpm), 381 SeriesPressures to 675 psig (46.5 bar) Port Sizes: 2", 3", and 4" ANSI Flange Connections ... gpm (2650 lpm), 383 Series Pressures to 675 psig (46.5 bar) Port Sizes: 2", 3", 4" and 6" ANSI Flange ... 120 gpm (454 L/min) Pressures to 500 psi (34.5 bar) Port sizes: 1-1/4" and 1-1/2" ... (170 L/min) Pressures to 600 psi (41.4 bar) Port size 1" 2804/2904 Series 8110/9100 Series Optional ...