Municipal and Industrial sewage is conveyed by waste water pumps into collection tanks at the sewage works. Sewage works pumps are usually operated with single seals in either a dead-end arrangement (conical) seal chamber or with product circulation or external flushing (cylindrical seal chamber). While standard seals are in many cases adequate for applications involving the supply of fresh water or conveyance of waste water, special engineering solutions are a necessity where heavy-duty applications in the spheres of drinking water supply or seawater desalination plants are concerned. On the other hand, thermal energy provision requires individual account to be taken of parameters such as pressure, temperature, sliding velocity, friction, water quality and additives. Their high quality ensures that Sealmatic seals significantly boost the availability of pumps in all types of water-related applications.