Self-Priming Liquid Ring Pumps is designed to operate flawlessly under the most difficult conditions. It provides design excellence, long-term reliability and superior performance. It provides the optimum solution for many rough vacuum applications in the chemical and allied process industries. Single stage liquid ring pumps are suitable for continuous operation on pressure from atmosphere down to 100 mbar, while the two stage configuration offers greater efficiency at low pressures. Both configurations can handle wet corrosive process streams and are tolerant of particulates while offering minimal maintenance requirements, vibration and noise.