Parts Book P20-P50/51-P75/76-P315 Gear Pumps  - ParkerGear Sets. 12. Port End Covers. 13. Fasteners. 13. Seal & Component Parts  A = F/P. Area of a Circle - D Sq. X .7854. Hydraulic Pumps. GPM = [RPM X CID] / Parker 313-9610-769 P51 1.75" Gear Pump SAEParker 313-9610-769 P51 1.75" Gear Pump SAE 313-9610-769 Porting:1.25" ORING SIDE & 1.25 ORING REAR Gear Width:1.75" GPM Flow at 1000 RPM:19.3 
PARKER P51 PUMP / MOTOR 5.10 CID, BI, NPT, 22 GPMPARKER P51 PUMP / MOTOR 5.10 CID, BI, NPT, 22 GPM -Parker P51 Pump:  PARKER & MUNCIE REPLACEMENT GEAR PUMPS > P50 / 51 GEAR PUMPS Parker 313-9610-767 P51 Gear Pump 2.25" O-ringParker 313-9610-767 P51 Gear Pump 2.25" O-ring 3139610725 313-9610-767 Porting:1.25" ORING SIDE & 1.25 ORING REAR Gear Width:2.25" GPM Flow at PGP030/031™ Series PGP050/051™ Series PGP075/076Parker Hannifin Corporation  The Gear Pump Division's ability to engineer  Kings Mountain, North Carolina USA. 4. Box 1 Pump/Motor. P. Pump. M  51. 57. 63.5. 94.5. 117. 140. 167. 193. 216. 240. PGP050/051. Flow data at 2500 PSI P30/31, P50/ 51, P75/76 Series Single and Multiple Pumps“PL” factor; “P” being the operating pressure and “L” the summation of gear widths. In multiple units the “PL” must be calculated for the first connecting shaft as