... : 3 3/4’’(95.25mm); 4’’(101.6mm); 4 1/2’’(114.3mm); 5’’(127mm)Performance data PlungerDiameterDisplacement at Pump Stroke ... )4,250(298)392(1483)3,540(248)4 1/2’’(114.3)165(624)7,500(527)248(938)5 ... )4,192(294)413(1563)3,350(235)496(1877)2,799(196)5’’(127)204(772)6,000(421)306 ... )4,525(318)408(1544)3,394(238)510(1930)2,712(190)612(2316)2,263(159) Based on 90% ME and ...