1. max input: 500 HP 2. Stroke length: 7-1/2" 3. Max speed :165 SPM 4.Outlook size: 3639*2709*2231MM 5. Comply with API Technical specification of F-500 drilling mud pump1,type Horizontal triplex single acting piston pump2,rated power 370kw(500hp)3,rated speed 165 SPM4,stroke length 190.5mm(7 1/2inch)5,max. liner size 170mm(6 3/4inch)6,gear ratio 4.286/17,prolong part on pinion shaft(diameter× ...