。 High to what degree and the valve structure and material selection are all related, should be based on the interpretation of the manufactory understand. 6 common fixed attached with back pressure relief valve used in occasions, when after inspection experience debugging opening pressure ( The back pressure to atmospheric pressure) , the setting value shall be the requirements of opening pressure value minus the supplementary with back pressure. (2) to use in the relief valve installation to be trying to take care of facilities before or before installing, be sure to present the new installation debugging, to determine the guard of the valve set pressure value is required. Opening pressure of the debugging: (1) relief valve before delivery, should by testing its opening pressure to the user requirements of setting value. (3) in the metal sign indicate the office of the spring pressure level range, after turning adjustment screw change amount of spring compression, can the opening pressure adjustment. Safety valve is open-close part affected by external forces under the utility in a normally closed state, when the facility or a pipe within a specified value, medium pressure after discharge medium system to avoid the pipeline or facilities within the medium pressure in excess of the prescribed number of special valves. (4) turn adjusting screw in screw before, should make the valve inlet pressure to reduce to 90 opening pressure to less than one hundred percent, in order to avoid spin turn adjustment screw when the disc is help and rotate, causing damage to tightly closed surface. (5) to ensure right opening pressure value, should make debugging when media conditions, such as media category, such as temperature as possible close to the actual operating conditions. If users spring office stress level, the force level according to ordinary pressure should be according to the lower limit of debugging. Relief valve belonging semi-automatic Industrial Valves class, mainly for the boiler, pressure vessel and pipeline Marine valves, the stem pressure shall not exceed the specified value, security and facilities for personal life running up the matter to take care of utility. Change in media category, especially when media accumulation state is not the same ( For example, from a liquid into a gas phase) , the opening pressure often change. Office at higher temperatures, the opening pressure of ordinary corner. So debugging and when used in high temperature, at room temperature under normal temperature setting pressure value should be slightly higher than the requirement of the opening pressure values. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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