To 1992 NianGen, will be the factory production line of the original form a set of safety valve all change are produced by our factory safety valve, running two years later, all the relief office performance is reliable, open acuity, tightly closed, not found abnormal phenomenon, this not only for saving the factory to buy foreign exchange expenses of a set of safety valve ( To our country legal currency of more than 180 ten thousand yuan) Safety Industrial Valves, but also for our factory to produce quality quantity grade has to absorb and improve effectiveness. To research the composition of manufacturing a full range of facilities a set of safety valve, both for the user to save money, solve the back trouble, for my factory production of safety valve of new products to find a new way. 3, after the success of the application in improving try to make, and to the full range of facilities on the implementation of reform step by step a safety valve. Q: the bell jar type safety valve structure analysis and application of a: full set of production line in China facilities used in bell jar type safety valve,, with a full range of facilities of a user reflect the leak amount is large, transform the inconvenience of maintenance, and the price was very expensive. For a leak comprised, we implemented the analysis on its structure. Numerical solution in the table that try to use this batch of safety valve, opening pressure performance and tightly closed to achieve country standards of quality requirements. 1, the structure analysis for the user to supply is not the same as the original structure of three kinds of safety valve, in accordance with the GB 12243-89 'safety valve spring directly load of setting pressure, tight sealing ability and mechanical properties, such as special inspection experience, finally the results of three kinds of the relief valve setting pressure deviation are appropriate, flexible motion, without resistance, mechanical special nature is good, but tight sealing ability is poor, into bubble son number per minute to 480, 455 and 265, leak amount all over the national standard specified value more than 10 times. 。 But the thickness of the disc is thinner, the minimum is only 2. 5 mm, lower hardness ( HRC< 30) , heated before jumping action produce changes shape and easily wear, actuating leakage. Installed on a production line's attempt to use 123 days, production check repair when remove the opening pressure and tight closure inspection experience. The relief valve by valve body, valve seat and valve disc, guide sleeve, bell, valve stem and spring and the Industrial Valves cover main zero parts, such as clock Marine butterfly valve cover way points, bell and recoil disc, imports have equivalent diameter, enlarge exports exceeded imports level 1, and amplification of grade 2 or more, high precision machining parts, valve cavity cleaning degree of good. 2, to improve and try to make for heated variant leak problem, try after repeated comparison, improved the original valve tightly closed structure, the disc becomes an organic whole repeatedly with the guide block, the face of the cone tightly closed to the simplest tightly closed, increase the thickness of the disc, and welding on the surface of the seat and disc tightly closed cobalt cemented carbide, tightly closed to the hardness of heat resistance performance and appearance can solve the problem of heat variant leaked, the improved disc structure as shown in figure 1 b. On the basis of a full range of facilities installation size and performance depending on a parameter, the first try to make the two varieties, three specifications, a total of 7 simplest tightly closed to the face of the relief valve, suit to use the media as the biphenyl and diphenyl ether, office temperature less than or equal to 330 ℃, into opening pressure of 0. 45 MPa、0. 55 MPa and 1. 2 MPa。 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 Industrial Valves, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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