When complete paper rev. , between two tightly closed surface to form a tight sealing butterfly valve and double injustice y, the same gap preset of the butterfly valve, thoroughly eliminate the mechanical wear and abrasion between the two tightly closed surface, makes butterfly valve tight sealing performance and using life of life have greatly increased. Because of the butterfly plate turning core ( The valve shaft core) With butterfly plate tightly closed profile by setting a injustice, for butterfly valves in the process of opening, the butterfly plate tightly closed surface gradually get rid of the seat tightly closed surface, butterfly plate rotation to 20 & amp; 度; ~ 25日, 度; Totally out of the seat when the butterfly plate tightly closed tightly closed surface, rev, complete paper gap formed between two sealing faces closely x, so for butterfly valves in the process of opening and closing, the relative mechanical abrasion between the two tightly closed surface and greatly reduce extrusion, thus guarantee the butterfly valve tightly closed. Q: pneumatic disc valve tightly closed in accordance with the way the classification of answer: produced series of disc valve tightly closed structure way: single unfair tightly closed, double injustice tightly closed, sometimes just tightly closed tightly closed, injustice, all kinds of structure type disc valve tightly closed principle is briefly described as follows: 1, double injustice tightly closed tightly closed principle of butterfly valves for ranks on the basis of single injustice butterfly valve disc turning core ( Both the valve shaft core) And the valve core line form size b offset, for butterfly valves in the process of opening, the butterfly plate tightly closed surface is better than single injustice more quickly out of the seat tightly tightly sealed butterfly valve sealing surface, butterfly Marine valve plate rotation to 8 & amp; 度; ~ 12, 度; Totally out of the seat when the butterfly plate tightly closed tightly closed, complete paper rev, two tightly closed surface to form a larger gap between y and presupposition of this kind of butterfly valve, greatly reduce the mechanical abrasion and between the two sealing faces closely crowded pressure form, make the butterfly valve tightly closed performance more growth. 3, unfair tightly closed tightly closed principle of butterfly valve change injustice of butterfly Industrial Valves is unique in installation disc stem axis is a three axis type structure, the three axle shaft stem two paragraphs period of work, and the key core section of the shaft line and ends left the path from a core axis, the butterfly plate is installed on the middle shaft section. 。 Because injustice shaft utility, close to the closing, disc to seat tightly closed cone move within a distance, the butterfly plate and valve seat tightly closed tightly tightly closed expression match to achieve reliable sealing performance. 2, sometimes just tightly closed tightly closed principle of butterfly valves for ranks on the basis of double injustice butterfly valve seat core line again and body form a core line & amp; β; Angle offset for butterfly valves in the process of opening valve, butterfly plate tightly closed surface in open flash quickly out of the seat tightly closed surface, and in the closing moments will contact and compaction seat tightly closed surface. So unfair structure for disc position into a double injustice in the whole paper, and when the butterfly plate rotate to the closed position is shaped into a single injustice. 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 Industrial Valves, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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