。 When the facilities or the pipe pressure exceeds the relief valve set pressure, semi-automatic open pressure, medium pressure protection facilities and the pipe under the set pressure, try to take care of office facilities and pipelines to normal, to avoid the unexpected, impairment losses. Electronic pulse valve is equipped with electromagnetic device, electric contact pressure gauge through time relay, the upper or lower the electromagnetic coil circuit connected to the upper or lower electric magnet moves, also electronic pulse valve open or Marine valve can be closed. The safety valve's quick opening is not smooth. The above three ways of relief valve, with the more widespread is the spring type safety valve. Spring raise safety valve structure of portable compact closely, acuity degree is high, the installation position is not subject to limit, and because the sharpness of oscillation is small, so can be used for the transportable pressure vessel. But heavy hammer lever type safety valve structure is more cumbersome, load mechanism easy oscillation, and often initiation leak due to oscillation; The back pressure is low, is not easy to shut down and maintain tightness after opening. Relief valve according to its population structure and the different load mechanism can be divided into heavy hammer lever, spring loaded and electronic pulse type 3 kinds. Heavy hammer lever type relief valve has simple structure, debugging is easy and relatively correct, not add loads have larger increase with the rising of the disc, suit to use the high temperature occasion, ever more widespread, especially in the boiler temperature and high pressure vessel. When used in the vessels of the high temperature, regularly to consider spring heat insulation or heat dissipation problems, thus make the structure becomes complicated. 2. Micro spring raise safety valve spring and safety valve is to use the compression spring force to the force equilibrium utility in the disc. Additional, the spring on the valve will be affected by high temperature because of long period and reduce tension. Q: office principle answer: the basic classification of safety valve and relief valve ( Aetv安全阀) Office is on the basis of pressure system of pressure semi-automatic type, common facilities installed in a closed system, or try to take care of system security on the pipeline. According to the lever principle, it can use quality smaller weight through leverage increases the utility had greater utility of his strength, and pass by the location of the moving heavy hammer ( Or transform the quality of the heavy hammer) To debug the valve opening pressure. The lack of the relief valve is added by the load will change along with the valve open, namely with the increase of the disc, spring compression ratio increases, the utility also follow to increase the force on the disc. At the same time, the electronic pulse valve can also be artificially by remote sensing system to open or close it. Spiral cast the amount of compression spring can debug nut to adjust after turning it on, take advantage of this structure can be according to the requirements of check valve to open, Setting) Pressure. 3. Electronic pulse valve electronic pulse type consists of the main valve and auxiliary valve, relief valve after auxiliary valve electronic pulse utility help and the main valve action, its structure is complex, generally only suitable for use in safety valve in very large volumes of boilers and pressure vessels. 1. Heavy hammer lever type relief valve hammer lever type relief valve is to use the heavy hammer and leverage to equilibrium utility the force on the disc. 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 Industrial Valves 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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