Viking Pump Inc.´s newest DuraLobe industrial bi-rotor lobe pumps use O-ring shaft seals instead of traditional mechanical seals. The DuraLobe O-ring Seal Design pumps´ O-rings make strip cleaning simpler and faster as well as eliminate the possibility of damage to mechanical seals. Available in 12 sizes, the near-pulseless flow is good for transfer and metering of nearly any fluid, including slurries and shear-sensitive liquids. DuraLobe pumps can be mounted with NPT or flanged ports in both horizontal or vertical planes and top or bottom shaft drive. For more information, call 319-266-1741 or fax 319-273-8157.