Q: as of valve flow problem of answer: actually a globle valve why preset low into the above, in the inside and also no clear standard in the standard, general to DN100 for low into the above. On the inside and outside the valve industry for the large diameter valves have behavior made high to low. The second is to think problem to the rigidity of the valve. High in low out of the valve will have clear influence, generally by the valve if not the default of large caliber into high into low out of the balance disc tightly closed, then the valve will be difficult to pin medium. ( Above is basically DN125 Marine Industrial Valves cover D N125) The default into high in low out. 。 Secondly also did not indicate the number of diameter above the Industrial Valves should be preset into high to low. By the end of valve, in the face of high to low is preset in pairs disc ( Also called balance disc) , preset double disc target has two kinds, one kind is when the valve is in open or closed to prevent the initiation of the differential pressure is too big. 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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