Profile: Tuke & Bell Ltd. specializes in the design and manufacture of sewage purification equipment. We offer a full range of aeration equipment either horizontally or vertically mounted together with bubble aeration systems. The medium-speed aerator is level sensitive and must be adequately immersed to avoid the creation of unstable vortices underneath the aerator. Anti-vortex baffles should be installed within the tank to provide stable conditions. The unit ejector is the ideal lifting plant for raising crude sewage to small disposal schemes. The rate of discharge can be adjusted within a very wide range, whilst leaving the sewage passage ways completely unrestricted. Discharge capacities range from 0.61 to 2.27 litres per second. Suction and delivery connections are 100m bore throughout, having the capability of passing unscreened sewage. Air pipes on both the suction and delivery side of the compressors are inter-connected so that with this system the ejector may be operated by either compressor, leaving the standby set available for use in an emergency.