CEN/TC 58/WG 8 - Valve proving system devices
This European standard specifies the safety, construction and performance requirements for automatic shut-off valves for gas appliances, hereafter referred to as valves. It also gives the methods of test for evaluating these requirements and information for installation and use. It applies to valves with declared maximum working pressures up to and including 4 bar, for use on burners or in appliances using fuel gases of the 1st, 2nd or 3rd families. It applies to electrically operated valves and to valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy. It applies to valves where the flow rate is controlled by external electrical signals, either in discreet steps or proportional to the applied signal. It applies to valves fitted with closed position indicator switches.
Valve proving system devices
This European standard specifies the safety, construction and performance requirements for automatic shut-off valves for gas appliances, hereafter referred to as valves. It also gives the methods of test for evaluating these requirements and information for installation and use. It applies to valves with declared maximum working pressures up to and including 4 bar, for use on burners or in appliances using fuel gases of the 1st, 2nd or 3rd families. It applies to electrically operated valves and to valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy. It applies to valves where the flow rate is controlled by external electrical signals, either in discreet steps or proportional to the applied signal. It applies to valves fitted with closed position indicator switches.
General Information
This European Standard specifies the safety, constructional and performance requirements for valve proving systems, hereafter referred to as VPS, for gas burners and gas appliances. It applies to all types of VPS which are used for the automatic detection of leakage in a gas burner section having at least 2 valves designed to EN 161 and which give a signal if the leakage of one of the valves exceeds the dectection limit. It applies to VPS with declared maximum working pressure up to and including 4 bar, for use in systems using fuel gases of the 1st, 2nd or 3rd families.
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