(3) for valves are easily damaged, because of this, check valve should be installed close to the pump discharge, the check valve upside sets block valves ( Common use ball valve or gate valve) Check repair, convenient. Double disc swing check valve is suitable for use with large and medium diameter pipeline. Set the relief valve to replace the bypass valve. Because of this, what time should be taken to try to take care of the solution. The pump outlet pipe size DN of 50 mm or line, should choose swing check valve swing check Industrial Valves can be installed level or straight. It set in the check valve outlet nearby, when water hammer pressure, a small group of water can be released in order to avoid pressure increased and then lead to damage to defuse conflicts can set air or inert gases. (4) for removable check valve pressure relief, before the check valve itself without put the net of the valve, should be in between the check valve and block valves equipped with pressure relief with net valve. On the basis of the number of the disc can be divided into single swing, more than double disc swing and swing three segments. 。 2, the pump discharge check valve diameter & gt; = 150 mm pipe, should be set up before, during, and after check the bypass, avoid Industrial Valves pressure rise too high, before the check valve tightly closed surface damage to the cause. Double disc swing check valve to the clamp structure is small, light weight, is a kind of fast check valve; More disc swing check valve is suitable for use with large diameter pipeline. 2. The installation of the pump outlet check valve (1) normal swing check valves installed on the level piping: for check valve diameter DN - 80 mm, heeling can also be installed in vertical or progress of piping. Q: pump discharge check valve type selection, treatment method of the installation, try our best to take care of a: 1. Pump discharge check valve selection of ordinary things in pumping station project, for the pump discharge check valve selection, should follow the following principles; The pump outlet pipe size smaller pipe, valve DN Marine & lt; 50 mm, should choose up and down type check valve. Their usefulness as a bypass valve. It is set in the check valve outlet nearby, when water shock initiation, after moderate conflict tank with out pressure is compressed, in order to ease pressure water shock initiation. (2) straight up and down type check valve should be installed on the level piping; Vertical up and down type check valves must be installed on the straight pipe, the medium flows from bottom to top. But in terms of check valve itself, setting is not appropriate, can lead to initiation of the disc to seat by water hammer impact suddenly, damage and check valve tightly closed surface. Swing check valve disc rotation around the axis of rotation, the fluid resistance of ordinary less than up and down type check valve, it is suitable for use in a large, installation location limit, generally installed on level line, it is suitable for use with the occasion of the large diameter. 3. To avoid the hydraulic impact of check valve tightly closed surface treatment method of the destroyed try our best to take care of check valve is installed, up to avoid material flow, to prevent the liquid impact of pump impeller. 3, the pump discharge line starting point and pressure at the end of the white-collar road, not allowed to bypass, can adopt the following processing method. Single swing check valves are common use and caliber of the occasion. Large diameter single swing check valve is used in the pipeline, to reduce the pressure of water hammer, and best see fit and use can reduce the water hammer pressure slowly-closing check valve. 1, set to pump export & gt; 80 mm swing check valve, shall be deemed appropriate and not use water to form, to weaken the disc back and initiation of the impact. 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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