This European Standard specifies the safety, construction and performance requirements for manually operated taps and pre-setting devices for gas burning appliances. It also gives the test procedures for evaluating these requirements and information necessary to the purchaser and the user. This standard applies to control taps with a declared operating pressure up to and including 200 mbar for use in appliances for use with gases in accordance with EN 437. This standard does not apply to manually operated shut-off valves conforming to EN 331.
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