It is used for conveying mud for drilling rig, emission of mine sewage and transporting water for long distance ... has four grades flow to meet large or small diameter drilling need, the adjustment scope is wide.2.Pistons are bowl ... relocation.styleTriplex single rolestroke10mmDiameter of cylinder80mm,65mmSpeed(chong/min)200,116,72,42,200,116,72,42Flow (l/min)250,145,90 ...