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In plumbing, valves have to support pressure of 15 kg/cm², thereby supporting both network pressure and pressure surges. In addition, they have to resist corrosion, maintain their physical properties in time, and not alter water characteristics such as taste, colour and cleanliness. The most widely-used for plumbing are: sluice, ball, butterfly, bedding, retention, square, 2-3 way self-closing, on-off, security, male, pressure reducers, floaters, one-line snifter valves.
