In order to avoid the water in the pipe hammer hidden danger, far to many people in the presupposition of check valve, a little think right and use the new structure, new materials, in the protection of the check valve is suitable for use at the same time, the performance of minimize the impact of the water hammer has won a good development. When media is flowing, help to open the valve, and maintain the valve in the operation of safe and secure and loss oscillations. Q: extraction non-return valve structure unique place and use type a: check Marine valve used in pipeline system, its main effect is to avoid medium counter-current, avoid pump and drive motor reversal, and the discharge of the vessel in the media. Check the office of the unique local load change is big, open-close frequency is small, a into the closed or open situation, suit to use cycle is long, and does not require device movement. Most scores for valves in practice, qualitatively identified for quickly closed, and in the check valve is closed at the moment of medium is a direction, with the disc in closing, media from the maximum current speed rapidly-changing down to zero, the pressure is a sudden rise, namely the initiation may have damage on piping system utility 'water hammer' phenomenon. Solenoid valves, air treatment of components such as stem device, according to the requirements of turbine factory think appropriate and use the United States ASCO imported products, can also be equipped with other countries according to the requirements of customers inside and manufacturer of high quality products, to ensure good performance and high reliable. For more than one pump in parallel is suitable for the high pressure pipeline system, using more MaoJian check valve water hammer problems. Check valve is closed, the electromagnetic valve shut down power, cutting die, quick exhaust valve start to work, inferior vena air exhaust vent cylinder, the check valve shut down rapidly. 2, when the media is flowing, inferior vena cylinder inlet, utility, side-by-side with a heavy hammer or disc equilibrium position in the whole paper. 。 Check valve can also be used to give the pressure there could rise to more than the system pressure of the help system supply supplement on the pipeline. Hands move to try to check in the operation of the valve for flexibility. Extraction non-return valve structure unique place 1, tightly closed surface surfacing Cr13 stainless steel or cobalt-based hard alloy and has a satisfactory wearability, tightly sealed performance is reliable. Extraction non-return valve used extraction non-return valve used in thermal power plant power plant or extraction system, or other system of steam and water on the corrosive medium, such as pipeline, to avoid the steam generator in suddenly suddenly reduce the pressure inside the turbine load rejection, extraction steam pipe and the heater in steam flow into the turbine blades in the turbine breaking, harm malignant accident of the steam turbine generator, and avoid a management way leaked water heater system from within the extraction steam piping into the turbine and not boiled water hammer accident, to try to take care of the safe operation of turbine. Check general suitable for use in medium of not disturbing, is not suitable for including gas circuit system of solid particles and viscosity larger media office principle of air supply from compressed air ( Air pressure to zero. 4 to 0. 6Mpa) , through the ball into the two three-way solenoid valve, ultimately through quick exhaust valve inlet into the cylinder, the check valve open. Water hammer is one of the pressure transient flow in the pipeline pressure wave, it is because of the change of pressure pipeline fluid velocity and actuating pressure rises jump or decline of hydrodynamic impact phenomena. The physical comprised of initiation is not compressibility of fluid, fluid motion inertia and a pipeline of elastic and comprehensive utility results at last. 3, heavy hammer after extension rod and fork utility in pin, to balance and rocker heavy torque and avoid the occurrence of water hammer. Check valve installed in the pipeline, that is, into a full line of fluid components, one of the valve opening and closing process will be affected by it in system is influenced by transient flow condition; The disc in closing, in turn, the nature of the special utility and production of fluid flow situation develop. When medium reverse flow, cylinder piston inferior vena rapidly-changing blowdown, disc at 0. 5 seconds quickly shut down. But once again 'switch' requirements, be sure to move the flexibility of the requirement of the more common mechanical movement is more bitter. Check valve on the basis of the material is different, can be suitable for use in a variety of media on the pipeline. As the medium of avoid backflow device, the valve can at 0. Rapid emergency shut down for 5 seconds, guarantee in super high water mark level, feed water heater display pneumatic device device after receiving liquid put back the clock signal, to separate the turbine speed, turbine or extraction system with maximum try our best to take care of. 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 Industrial Valves, safety valve, Marine Industrial Valves, oil valve, hydraulic control valve and other kinds of valves.
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