"Screw pumps & systems since 1924"
German manufacturer of screw pumps and pump systems, headquartered in Nuremberg. Leistritz is one of the pioneers of screw pump technology: it has developed and produced screw pumps since 1924, when Paul Leistritz first used a twin-screw pump to deliver lube oil for steam turbine bearings. The Leistritz Pump Technology division has more than 300 employees and offers what it describes as the most comprehensive programme of screw pumps, with spindles and housings, the core elements of the pumps, manufactured in Germany. Subsidiaries and service stations are located in the USA, China, Singapore, Dubai and Sharjah, India, Korea and Italy, and a test facility in Nuremberg tests pumps with drive power up to 4 MW. The fluid pump programme consists of two-, three- and five-spindle, single or double volute, self-priming positive displacement pumps: the L2 range (twin screw), the L3 range (three screw, low to ultra-high pressure up to 280 bar, plus the API 676 L3MA), the double-volute L4 range for flow rates up to 6,000 m³/h and 150 bar, the five-screw L5 range and the FLEXCORE series with easy-change cartridge. Leistritz also supplies pump skids and systems, multiphase pump systems for oil and gas production (up to 5,000 m³/h, 150 bar, gas volume fractions up to 100%) and fuel pumps and flow meters for the automotive industry. Typical industries are oil and gas, shipbuilding, chemicals, petrochemicals, power and energy, hydraulics, pulp and paper, steel production, textiles and paints.
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Product portfolio
9+ product families. Leistritz screw pumps are self-priming positive displacement pumps with low pulsation, low vibration and noise, axially balanced rotors and a single shaft seal on most ranges; sealless versions with magnetic drive and semi-submersible designs are available. Design codes: G = pump casing, F = flange, T = semi-submersible, C = compact, L = lube oil, A = API; pressure classes N (low), M (medium), H (high), V/U (very high / ultra high). L2N (twin screw): up to 900 m³/h, 16 bar, 100,000 cSt, 280 °C. L3N: up to 700 m³/h, 16 bar. L3M: up to 300 m³/h, 80 bar. L3MA: API 676, up to 276 m³/h, 20 bar. L3H: up to 200 m³/h, 160 bar. L3V/U: up to 180 m³/h, 200 / 280 bar. L4 (twin screw, double volute): up to 6,000 m³/h, 150 bar, 150,000 cSt, 350 °C. L5N (five screw): up to 1,700 m³/h, 10 bar. FLEXCORE (three spindle): 7 to 564 l/min, 1 to 40 bar, 1.1 to 2,500 mm²/s, with cast (CC, CI) or steel (SC, API 614/676) casings. Pumps are driven by electric motors, hydraulic motors or combustion engines, optionally with variable speed drives.