• Purpose: A49Y-100 is suitable for operating temperatures less than or equal to 450 degrees, A49Y-100V is suitable for operating temperatures of 540 degrees or less equipment and pipeline vapor medium. When the pressure inside the equipment and piping exceeds the allowable value, the valve automatically opens impulse valve, opening pressure signal causes the main valve to match quickly open, then the whole emissions; when the pressure is reduced to a predetermined value, the valve automatically closes to ensure safe operation of equipment and piping, the product structure length.

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