Blackmer Industrial re-joins the JKA line-up: JKA is proud to welcome back the Blackmer Industrial product line. As a key member of the newly formed Dover Fluid Handling “Pump Solutions Group” (PSG), Blackmer rotary vane pumps have been “on the job” pumping both viscous and non-viscous fluids for over 100 years. This wealth of experience enables us to ensure the proper selection and application of Blackmer pumping products for your most challenging pumping problems.