5, was trying to Marine valve, try to pressure for the nominal pressure of 1. 1 times; Try to pressure trying to continuous time internal coordination maintain unchanged, with disc tightly closed surface no leakage to conform to the standard. When installation, to prevent brings to the regulating Industrial Valves with plus stress) 。 4, before and after the valve position should be straight pipe, the length is not less than 10 times the pipe diameter ( 10 d) , in order to prevent the valve of the straight pipe is too short and affect the flow of special nature. Q: the installation of pneumatic, electric control valve main point a: pneumatic control valve and the difference of electric control valve is electric regulating valve without additional construction of gas source, because this uncomfortable office background should be on a variety of explosion-proof requirements too high, and the electric control valve is due to demand additional construction of gas source, its security is higher, because this can be suitable for all kinds of explosion-proof requirements of high background. 3, execute appearance investigation prior to valve installation, valve in accordance with the country standard metal brand GB12220 'micro' general valve regulation. Electric control valve installed essentials: 1, valve installation position, height, import direction must accord with appropriate outlet direction default requirement, even who strengthen emergency. No demand for special occasions, the regulator water in vertical pipe runs, and regulating valve should be implemented to support ( Small diameter regulator is not counted) 。 3, office background temperature regulator must be ( - 30 ~ + 60) Relative wetting degree and a half more than 95 one hundred percent, 95 one hundred percent, relative wetting degree and a half more than 95 one hundred percent. 5, the calibre of the valve and process piping, not use reducer petition shall be deemed appropriate. On the installation, pneumatic control valve and electric control valve installation into main point as follows: the installation of the pneumatic control valve main point: 1, pneumatic control valve installation position, the request has the certain height from ground, valve up to leave a certain space, so that the disassembling and repairing. 6, to set up the by-pass pipe. 。 That there is the main form of petition turnbuckle, flange and welding adjacency department. For office pressure is greater than 1. 0 mpa and play on ZhuGanGuan truncation effect of valve, should be implemented and was trying to intensity, conform to the standard rear must use. Goal is easy to switch or a manual operation, it can be implemented in unceasingly car things conditions section switch valve check repair. For regulating valve with pneumatic valve positioner and handwheel, be sure to guarantee operation, examine and convenient debugging. 7, the regulator to clean up the pipe before installation of foreign body, such as a stain, welding slag, etc. Available in small diameter when regulator is installed, turnbuckle signatures. Flange signatures, if the temperature exceeds 350 ℃, because screw, flange and gasket creep relaxation, should choose high temperature bolt material. Flow direction arrow on the valve body shall be with the direction of flow are exactly the same. 4, intensity, try, try the pressure for the nominal pressure of 1. Five times the continuous time not less than 5 min, shell and packing shall be no leakage of the valve. 2, control valve should be installed on the level of pipeline, and straight up and down and pipeline, common to be supported under the valve, ensure stable reliable. 2, the valve can be used with the end of a variety of ways line petition. To a certain extent, the installation of the pneumatic control valve and electric control valve main point there is a little similar, but the two products are demand guarantee consistent with corresponding office background conditions, the ability to ensure the office safe sex and office rate, also can prevent all kinds of problems caused by installation of malfunction. Other valve can not only alone to try, and stay in the system pressure test inspection experience. 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. 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