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The safety valve is manufactured in a very specific way. The steps for making the safety valve are as follows: First, choose the appropriate material according to the temperature and medium. Safety valve commonly used materials at room temperature: carbon steel, cast steel. When the medium is corrosive, it is usually selected: stainless steel (stainless steel is roughly divided into 304, 316, 316L). When the temperature is higher, it needs to be selected: chromium molybdenum steel, or chromium molybdenum van steel. When the medium is highly corrosive, it can be made of PTFE.
The second valve body, need to use the specified abrasive tool to make the specified valve body model according to the model.
The third sealing surface, the valve sealing surface is a very delicate step, made by the master of our factory by hand a little bit of grinding, but it is pure hand-grinding it.
The fourth pressure test valve is large enough to complete a process that is now very important, that is, on the pipeline pressure test, put the valve on the dedicated pressure test pipeline, the technical personnel of our factory professional pressure test according to customer requirements Pressure setting, after the pressure is set successfully. It takes the final step to make the valve successful.
The fifth paint, the final treatment of the valve placed on a special spray equipment. This step is mainly for the appearance of the valve body, and it must be shipped after the paint is dry.
Several procedures for manufacturing safety valves
The safety valve is in the normally closed state. Only when the set pressure in the equipment exceeds the allowable value, the valve flap is automatically opened. When the device is set to the specified value, the valve flap will be automatically returned for secondary protection. Although the safety valve is a safety valve for protecting the equipment and the human body, the safety valve will not open too much. Because each time it is turned on, it represents a problem with the equipment.