... are horizontal, twin double acting, reciprocating, piston pump.Price refers to FOB. Detailed parameters: Displacement: 280L ... mud pumps are horizontal, twin double acting, reciprocating, piston pump, adapted well drilling, geological drilling, pile hole drilling, ... or diesel power.BBW260 / 7 mud pump is horizontal, triplex, single acting, reciprocating, piston pump. Five-speed variable speed design ...