View Petroster Sp. j. on TEKEN44EFA valves are the most popular model in the offer of valves without a flame arrester. They come in sizes from DN50 to DN300. This is a modern design dedicated to storage and process tanks requiring balanced aeration and venting parameters. Their main tasks are to automatically regulate the pressure inside the tanks and prevent spontaneous emission of vapors into the atmosphere. They are class II 1 G c T6 devices, therefore they can be used in any explosion hazard zone. They have discs integrated into one unit, thanks to which they have compact dimensions and low weight. Proportional operating characteristics, no pressure drop below the setting throughout the entire operating range, high tightness and the same valve closing and opening pressure are a number of features that make them suitable for use with demanding installations, including nitrided and metered installations.
EN 1127-1
Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
EN 13463-1
Non-electrical equipment for use in potentially explosive atmospheres - Part 1: Basic method and requirements
EN 13463-5
Non-electrical equipment intended for use in potentially explosive atmospheres - Part 5: Protection by constructional safety 'c'
ISO 28300
Petroleum, petrochemical and natural gas industries — Venting of atmospheric and low-pressure storage tanks
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