Axial flow check valve has a small quality, so the friction loss on the orientation, disc to a sudden return. Since the opening and closing of the disc is to place a dynamic force equilibrium in the system, because the equilibrium, the operation of the noiseless and greatly detract from water hammer phenomenon. Small quality low inertia of the disc through a short trip and after the impact of the minimum contact seat surface. By a licensed can be seen on the small V can be a great deal to reduce the cost of protection increases the check valve is of good sex. As long as there is a pressure difference, the disc has been in an open state, but the volume of open degree by the pressure difference. Q: axial flow check office principle: a: through the inlet valve and the outlet pressure difference to vote on the opening and closing of the disc. When the import side pressure and outlet pressure loop unrolling the spring force, disc opens. And to all Marine valve open position is always fluid flow pressure component in supporting position in the whole paper disc. Can check valve in the open and safe open conditions required for the earliest fluid velocity is called the minimum flow rate. Motion device to prevent the display of premature wear, noise, or run or oscillations, choose check valve will be based on conditions of size. The axial flow check valve does not exist the problem. In the axial check valve, pressure differential is the main factor to maintain the valve closed, and spring is attached with small power back. While maintaining the same VC values. 。 So to prevent the seat tightly closed surface damage, avoid causing seat leakage. Compared with swing the axial-flow check valve, oblique disc check valves have lower V value, when the valve opens, can test the force effects on the disc, it is easy to see that swing, oblique disc check valves with the increase of opening Angle, the disc by force is reduced, this is because when the opening Angle increases, the disc stress in reducing the size of the surface or surfaces. The special nature of spring elastic thin, springs reflect very acuity, the disc will be able to in the fluid to flow, to the disc in the utility strength, get back seat disc rapid reaction, guarantee the valve have longer use fixed number of year without destroying of survival. When fluid flow through the valve, by axial flow check see fit to use smooth streamline geometry style preset, minimizing pressure loss can also reduce stroke. If the nominal flow rate through the check valve reach or exceed the check valve installation, especially the abrasion is reduced to a minimum, also can avoid plague errors. If have no way to support the valve pressure fluid flow in a large open and maintain the safe open position, the disc and the movement of the device, is likely to be in a continuous oscillation condition. When the outlet pressure and spring force of the whole is greater than the inlet pressure, the valve is close and has been in a closed condition. 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 Industrial Valves, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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