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This European Standard defines the minimum fitness for purpose requirements for automatic control valves providing a regulation function to be used in, or connected to, water supply pipe systems, above or below ground (see EN 805), carrying water intended for human consumption. This standard specifies the design requirements, the performance requirements and the conformity assessment method for control valves, whatever their type and materials. This standard applies in priority to any other product or test standard : the requirements from other standards apply only when this standard refers to them. This part of EN 1074 deals with the requirements applicable to control valves up to DN 2000 and PFA 6 bar to PFA 25 bar. This part of EN 1074 does not deal with the specific performances of the controlling system accessories, whether they be integrated or not, nor with the other components of such control systems e.g. pressure sensors, flow meters, level detectors, regulating devices, powered actuators, etc. Control valves manufactured in accordance with this standard are not intended for buried service.