DOLPHIN LR 0700/1190 A

Overview

The DOLPHIN LR 0700/1190 A are liquid ring vacuum pumps and are listed as our largest liquid ring vacuum pumps in the DOLPHIN family. They are described as robust, with proven technology, reliable operation, and extremely high vapor and particle tolerance for challenging environments such as mining, power plants, sugar production, pulp and paper industry, and steel production. The pumps have a modular design and can be supplied with a cast iron (EN-GJL-200) housing with ductile cast iron impeller, or in all 304 grade or 316L grade corrosion-free stainless steel material. Operation with fluids other than water is possible and the units can be operated as compressors. Available accessories include motorized pumpsets with gearbox or V-belt drive systems mounted on sturdy steel base frames, partial or total recirculation systems, cavitation protection, gas ejectors, non-return valves, and vacuum relief valves. Nominal pumping speeds (ISO 50 Hz) are 4920 m3/h for DOLPHIN LR 0700 A and 6700 m3/h for DOLPHIN LR 1190 A, and nominal pumping speeds (ISO 60 Hz) are 7000 m3/h for LR 0700 A and 11900 m3/h for LR 1190 A. Both models list an ultimate pressure of 33 hPa (mbar) and a max. overpressure of 0.2 bar(g) for ISO 50 Hz and ISO 60 Hz. Nominal motor ratings (ISO 50 Hz and ISO 60 Hz) for LR 0700 A are 110 / 132 / 160 / 185 / 200 kW and for LR 1190 A are 160 / 160 / 185 / 220 / 280 / 355 kW. Reported nominal motor speeds are 330–490 min⁻¹ for LR 0700 A and 266–472 min⁻¹ for LR 1190 A. Sound pressure levels (ISO 3744) at 1 m distance and medium load are < 85 dB(A) for both models, approximate weights are 3750 kg for LR 0700 A and 5390 kg for LR 1190 A, and dimensions (L x W x H) are 2020 x 1350 x 1865 mm for LR 0700 A and 2258 x 1550 x 2160 mm for LR 1190 A. Gas inlet and outlet connections are DN 300 PN 10 for LR 0700 A and DN 350 PN 10 for LR 1190 A. Nominal pumping speeds listed for US 60 Hz are 4119.5 ACFM for LR 0700 A and 7003.2 ACFM for LR 1190 A, and the ultimate pressure for LR 0700 A (US 60 Hz) is 25 TORR. Explicitly listed applications for the DOLPHIN LR 0700/1190 A include Biogas Handling (Circulation) and Carbon Capture (Direct Air Capture). Confectionary use cases include Other coating, Pneumatic Conveying, Molding and forming, Vacuum extrusion, and Mixing Preparation and cooking. Dairy applications listed are Cheese Production (Cheese vacuum chambers; Pneumatic Conveying; cheese towers), Milking, Milk Powder (Evaporation; Powder handling), and Butter Production. Fish farming entries include Retaining vacuum for filleting, Fish meal impregnation, and Pneumatic transportation of live fish. Food Processing applications listed are Pneumatic conveying of wet food waste, Meat tumblers & marinators, Powder processing, Vacuum cooling, Freeze drying, Pasteurizing & Sterilizing, Meat cutters, and Beverage filling. Other explicitly stated use cases are Oil and Gas – Vapour Recovery; Packaging – Liquid packaging; Power Generation – Condenser Air Extraction; Wastewater Treatment – Aeration Process; and Woodworking – Impregnation and Drying.