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Gate valves are used to control flow of liquids that do not contain abrasive materials in suspension or acid solutions.
Diaphragm valves are suitable for use in pipe system that circulate acid or abrasive material.
Pressure relief valves are mainly used on pressure vessels and pipe systems.
Pressure valves provide means to rapidly release any excess pressure in system before an accident occurs or pipe explodes.
Non return valves permits flow in both directions.
The function of a valve is to regulate and control flow of liquids or shut off the flow completely