Check Industrial Valves belong to a kind of semi-automatic valve, its main effect is to avoid the media counter-current, avoid the pump and drive motor reversal, the discharge of the medium and vessels. All the disc can be made from metal, can also be embedded in the metal, animal skins, while the use of synthetic rubber, or thought fit cover surface, the decision on the use of performance requirements. 。 General office of the valve is semi-automatic, flow in one direction under the effect of fluid pressure, valve open; In the opposite direction of fluid flow, the fluid pressure and the disc from the overlap of disc utility in the seat, so blocking flow. Flange check valves is refers to the flow depends on the medium itself, and semi-automatic valve opening and closing, used to avoid the media flow valve, also called a non-return valve, check Industrial Valves, backflow valve, and the back pressure valve. In order to ensure the disc can often to the seat to the appropriate location, in disc preset hinge agencies, in order to have enough plug valve kai xuan space, and true, all aspects of the valve and valve seat contact. Swing check valve with the humble hinge institutions, there is a door the same disc freely on heel seat appearance. Check the main can be divided into swing check valve ( In accordance with the center of gravity rotating) With up and down type check valve ( Move along the axis) 。 Up and down type check valve disc is located in the body seat tightly closed surface. Wafer and son, swing, up and down type, such as axial flow have different strengths. Apart from this check valve can be freely up and down, the remaining local is like by the valve in the same way, the Marine valve pressure of fluid from the valve seat tightly closed surface lift, medium return cause disc to seat, flow and truncation. Through the up and down as the valve is in the same way, fluid type check valve of the channel is narrow, because this through up and down type check valve pressure drop than the swing check valves are bigger, and swing check valve flow limit rarely. Swing check valve in the absolute open state, the fluid pressure is almost not affected by blocking, because of the pressure drop through the valve is relatively small. According to the conditions of use, valve can be all-metal structure, also can be in disc shelves embedded rubber mat or rubber ring. This product is the utility of the type of valve is only allowed to medium flows in one direction, and stop the flow direction. Check valve can also be used to give the pressure there could rise to more than the pipeline system pressure of the help system supply supplement. The flange check valves is belong to this type of Industrial Valves, it covers the swing check valve and up and down type check valve. Q: valve, check valve and flange check valves have what advantage? A: check valve can not easy to choose, process piping to consider problem. 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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