The HPMB line barrel pumps is multi-stage and suitable for heavy-duty applications such as oil and gas, refining and petrochemical, power plant boiler feedwater, water injection and reverse osmosis. The HPMB pump was designed and manufactured according to API 610, latest edition. The pump casing is radially split and the centerline is supported to eliminate the effects of the thermal expansions in case of high temperature applications. HPMB pumps feature vaned diffusers and small capacity HPMB pumps (<80 m³/h) are equipped with double volute diffusers. The opposed impeller and diffuser configuration allows it to minimize axial and radial thrusts. Full cartridge design allows quick and easy dismantling. It is available with 4 to 13 stages with the ability to be “de-staged” to increase or decrease the number of stages and meet future requirements.