... pumps are horizontal, twin double acting, reciprocating, piston pump.Price refers to FOB. Detailed parameters: Displacement: 280L/ ... 5 mud pumps are horizontal, twin double acting, reciprocating, piston pump, adapted well drilling, geological drilling, pile hole drilling, etc., ... self-priming ability, less wearing parts, long service life, and so on. Use electrical or diesel power.BBW260 / 7 mud pump ...