JBB series chemical metering Pump dosing pump,metering pump flow:0-130L/H,pressure:4-10bar ... .It can transport high-viscosity mediums, corrosive liquid and dangerous chemical goods.4.The flow can be controlled via adjusting the ... of stroke or the motor frequency.PurposeWidely used in petroleum, chemical industry, electric power, metallurgy, mining, shipbuilding,light industry, agriculture, national ...