Type A48Y is suitable for temperature are less than 350 of steam, air and other media equipment and pipeline, as the overpressure protection device, when the equipment and pipeline internal pressure exceeds the allowable value, the valve automatically opens, then the whole amount of emissions; when the pressure is reduced to the specified value when the valve closes automatically, to ensure the safe operation of equipment and piping.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
(1) the general class to JB/T22031999 "spring-loaded safety valve structure length". At present, most of the domestic safety valve manufacturers are in accordance with the standard design and production. But this standard is not perfect, incomplete specifications, micro swing type safety valve maximum nominal diameter of NI D 00, full swing safety valve maximum nominal diameter DN200, the middle of the lack of DN65, DN125 two specifications. According to my factory production safety valve specifications and information to see, the current micro open type safety valve nominal diameter to reach DN250, the full swing safety valve nominal diameter of DN400. After my research, the manufacturers are not the unified connection dimensions, such as the safety valve DN150, in order to have a unified standard, users swap in the selection and installation of the same specification to the proposed Hefei General Machinery Research Institute of JB/T2203 - 1999 "spring type safety valve structure length" revised. Recommended design institute and the user is selected according to the standard, the safety valve manufacturers in accordance with the standard design and manufacture.
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