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DIN EN 14817:2006
Railway applications - Suspension components - Air spring control elements; German version EN 14817:2006
The document defines characteristics, approval procedures, qualification procedures for the product, quality surveillance provisions for the manufacture and supply requirements for air spring control elements. It covers complete control elements. It specifies differential valves, filters, levelling valves, non-return valves, minimum pressure valves, pressure reducing valves, end stop valves and isolating valves.
Deutsches Institut für Normung [din]