Medium of the closed type safety valve that is out of drain, all along the export to the designated place of drain, normally used in the toxic and corrosive medium. For spring safety valve, in a nominal pressure ( PN) Have several office pressure level within the range of the spring, when placing order, in addition to the Marine valve indicate safety valve model, name, medium and temperature, it should indicate the valve tightly closed pressure, otherwise according to the maximum confining pressure supply tight. The relief valve installation and protection should be paid attention to the following projects: 1, all kinds of safety valve should be installed straight. For air with safety valve, relief valve and steam think more appropriate and using closed type safety valve. 4, the relief valve should be of use in seizing on a regular basis. 2, should not prevent the safety valve outlet, prevent initiation pressure. For the selection of valve products, should according to the actual tightly closed pressure to confirm. Q: the relief valve is analysed and pay attention to the things of project utility answer: the utility of the relief valve class is to avoid the medium pressure in excess of the prescribed number of line or device, thus achieve the purpose of the security do their best to take care of. 3, the relief valve should be specially test before installation, and seizing the officer tightly closed. Can be divided by the relief valve disc opens high slightly enlightening the safety valve and the safety valve, raise safety valve opening stroke height is: 0 or less. 05d0( Minimum discharge throat diameter) ; All safety valve opening height is 0 or less. 25d0( Minimum discharge throat diameter) 。 Relief valve according to the structure to points, divided into vertical hammer type safety valve, relief valve lever, spring safety valve and pilot operated relief valve ( Electronic pulse valve) ; According to the body construction, can be divided into closed safety valve and not closed safety valve two kinds. The relief valve is a safe, try to take care of with valve, it is under the open-close part affected by external force effectiveness of normally closed, when the medium pressure inside the facilities or pipe, e. semi-automatic open, when more than after discharge medium system to avoid the pipeline or facilities within the medium pressure in excess of the prescribed number. Relief valve belonging semi-automatic valve class, mainly used in boilers, pressure vessels and piping, stem pressure shall not exceed the specified value, security and facilities for personal life running up the matter to take care of utility. 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 Industrial Valves, 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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