Additional, in order to guarantee the size of the valve stem increase precision rough machining process. 。 Main function is to curb the vibrator invited at some exciting force output level, at a certain frequency ( Speed) Scope for any frequency to high frequency stabilization precision of the office. Especially the resonance peak load special nature of the changes before and after the heavy things, and record related to aging, identify and output curve and depending on a parameter. 2, change the vice materials tightly closed. Surfacing on stem tightly closed cone abrasion resistance good department too hard alloy, the solution obtained the good effect, but on the other hand the division so alloy cost is too high, on the other hand because basic materials for 13 cr martensitic stainless steel stem, poor weldability, welding preheating before welding, when the heat preservation after welding and welding process complex. Q: as of the valve tightly closed structure and the improvement of material a: by the valve has simple structure, can be through the valve stem rotation and the principle of up and down, the valve open or cut off, and to ensure that the valve tightly closed and tightly closed on function. Practice proved by the valve tightly closed only on opening and closing a few times, is because of the tightly closed pair between the scratch and actuating. 1, move the tightly closed on parts of the valve stem to target on the disc is in the process of loading, on the valve tightly closed expression on the closely on the closure of the valve cover surface at rest no slip condition) 。 The principle of vibration aging equipment: mechanical vibration aging device mainly covers the vibrator, stem host, acceleration sensor, support rubber, etc. Because of the special movement principle, the structure also led to the Industrial Valves tightly closed pair stress is very bad consequences ( Form both tightly closed between vice be vertical pressure, and tightly closed the relative slip between vice friction) 。 To solve such a problem on the valve tightly closed did try and improve the structure and material. Abrade small need to disassemble repair, abrade serious has been abandoned by destruction, the consequences of such pay increases the company system leads to this, and affects the performance of the valve. Tightly closed on this improvement is to increase the survival of the fixed number of year, but because of the need to add a disc trap lid tightly closed between the disc and have a Marine valve structure is complex, with low price. 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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