The Dival 507-512 H is a lever-operated gas pressure regulator controlled by a diaphragm and regulated spring action. It is specifically designed for 100% hydrogen applications and is used in medium and low pressure gas distribution networks, as well as commercial and industrial settings. Classified as Fail Open according to the European Standard EN 334, it ensures safe operation in case of failure. The regulator is certified under European Directive 2014/68/EU (PED) and meets leakage standards better than class VIII according to ANSI/FCI 70-3. It offers high accuracy, balanced design, low differential pressure operation, and easy maintenance. Additional features include internal sensing line, top entry, and built-in accessories such as the LA slam shut, relief valve, monitor version, and silencer (for model 512).
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