So install goal is loss of body fluid resistance thus reducing valve opening and closing force, at the same time also can maintain the valve closing valve stem, stuffing box is not contact with the media, destruction and the loss of leak occurred. Small by the valve stem turnbuckle is located in the body, because the more contact with the media in use for a long time, easy to corrosion medium. 。 The valve in the when used to determine the main form of the valve opening and closing condition, is take a closer look at above the height of the valve cover, stem to venture to restrict the operation of the valve. The valve in the practical production is mainly used for water, steam, compressed air pipeline of stem, but is not suitable for application in the big easy to form crystal viscosity materials. The valve stem and valve cover signatures into local hole possible, easy to leak out media, it can be solved after packing tightly closed. By the valve structure is relatively complex, but the actual operation simple and convenient save Labour, in the aspect of adjusting flow and cut off the channel has good expression, show opening and closing speed slow scarce water hammer. So in order to avoid the valve using the survival of the simple fixed number of year is not long, fairy butterfly valve door, chief engineer even the right to feel by the end of valve installation to refer to the direction of the fluid, pay attention to the low into the above maintain fluid pipeline, namely progresses from the mouth through the seat. Q: what should be paid attention to the construction of the valve and install projects a: by the end of valve is to use the up and down the stem help and Industrial Valves head, so change the distance between the valve plate and Industrial Valves seat to open/close stem of the valve, the valve is used most widely in the chemical production cut class valves. By the valve to the compact structure, appearance is superficial unique place, at the top of the valve handwheel and stem, middle has turnbuckle and stuffing box tightly closed. 2, the valve stem operation such as there is no way to work with people, can use special F the board to replace, but in F the board still have no way to open, do not use extended boards to forced open and close, in order to prevent the destruction of the valve and even the occurrence of safety accidents. As of valve used in installation, attention should be paid to the following three points: 1, the valve in the open before the leak investigation, confirm whether the valve without leakage lacking, Marine valve stuffing box is no leak. 3, the valve when applied in the medium pressure steam pipeline, condensate out, before opening the pipe steam preheating, after this preheating pressure remain at 0. 2 to 0. 3 mpa, the goal is to prevent the temperature and pressure changes suddenly actuating tightly closed destroyed, after confirmed safe condition pressure can be transferred to the required standards. 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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