Gate valves
When water is treated in a treatment plant, it is pumped to the consumer via a distribution network.
Distribution
A distribution network usually operates at a relatively low pressure, but water pressure can vary in a distribution system. The pressure must be high enough so that the water reaches all consumers, also at the higher places in relation to the pumping station. In hilly areas, the distribution network is built up in pressure zones, separated by pressure reducing stations, gate valves and non-return valves.
Power Valves supplies a wide range of valves and other cast iron fittings that are naturally equipped with KIWA certification.
Production
Water is collected from a large number of different locations, for example groundwater, surface water (lakes and rivers), water reservoirs and even sea water (by means of desalination).
Regardless of where the water comes from, it must be purified before use. The water from some areas only needs filtration and aeration, while water from other locations requires disinfection using e.g. chlorine.
Water treatment is usually carried out in an installation with relatively easy access for the maintenance of valves and other equipment. The valves are often equipped with automatic control, such as electric or pneumatic drives, which allow remote operation and control.
Power Valves supplies the necessary products from its own stocks or from the factories where we have a partnership, of course with KIWA certification.
Choice of valves
There are several reasons why individual governments and consulting / engineering firms choose different types of valves. Some designers are more familiar with gate valves, others with butterfly valves. Several design options are also available within each category of valves. The choice of valves can also depend on project-specific applications and availability for different pressure classes.
Power Valves supplies a wide range of valves and other cast iron fittings that are naturally equipped with KIWA certification.