High pressure relief Industrial Valves is a safety valve, the open-close part under the action of external force in a normally closed state. It, the form of the structure is divided into vertical hammer, lever, spring type and leading type; According to the body structure, can be divided into two kinds of, closed and not closed. Here is a high pressure relief valve when installation should pay attention to matters: 1, the rated evaporation capacity is greater than zero. 5 t/h boiler, installed at least two relief valve; The rated capacity is less than or equal to zero. 5 t/h boiler, install a relief valve at least; For the rated steam pressure is less than or equal to 3. 82 mpa boiler safety valve throat diameter should not less than 25 mm; For the rated steam pressure is greater than 3. 82 mpa boiler safety valve throat diameter should not less than 20 mm. 2, high pressure relief valve should be installed vertically in the pot, the top of the header. Between the relief valve and the drum or header, shall not be equipped with access steam outlet pipe and valve. 3, lever type relief valve to prevent heavy hammer to mobile devices and on its own limitation lever deviant guide frame, the spring safety valve to have raise a hand and prevent twisted casually adjusting screw of the device. 4, high pressure relief valve connected to the boiler tube, the cross-sectional area shall not be less than import cross-sectional area of the relief valve. If several common relief valve installed in a short tube attached directly to the drum, the access of the short tube cross-sectional area should not step in all safety valve exhaust steam area 1. 25 times. 5, the relief valve should be installed commonly exhaust tube, exhaust steam pipe should be direct safety, and have enough area, ensure the exhaust steam flow. At the bottom of the relief valve exhaust pipe should be put on AIRS have received safety drain pipe, on the exhaust pipe and drain pipe, are not allowed to furnish the valve.
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