Check valve ownership semi-automatic valve class, mainly for the one-way flow of medium pipeline, only allowed to medium flows in one direction, in order to avoid an accident. Check valve can be divided by structure distinguish, up and down type check valve, swing check valve and butterfly valve 3 kinds: 1. Up and down type check valve can be divided into vertical and horizontal two kinds. One-way flow of media is to stem the pipe valve, used to avoid pipeline medium flow. Check valve ownership semi-automatic valve. Pressure is 1. 6 ~ 25 mpa / Class150 - 2500/2. 0 - 42. 0 mpa office temperature - 29 ~ + 550 ℃, material generally have: cast steel, WCB. Cast iron HT200, HT250, QT350, QT450, boron steel WC6, WC9, CN7M stainless steel CF8 ( M) ,CF3( M) 。 Forged steel A105, F304 ( L) F316L, etc. Fuel, chemical, pharmaceutical, chemical fertilizer, power industry, such as the pipeline under various working conditions, suitable for medium such as water, oil, steam, acid medium. 3. Butterfly check valve for straight-through. The above several kinds of check valves in the mode of signatures can be divided into adjacent department countersigned countersigned turnbuckle, flange, welding and a petition to the clamp. Water pump suction pipe of bottom valve also belong to the check valve class. Q: check valve has a few product type? Answer: different classification for different category, general is according to the structure points: 1) Swing check Industrial Valves (2) Up and down type check valve (3) Disc check valve (4) Pipeline check 5) Empty row check 6) Slow close check valve 7) Diaphragm type check valve 8) No wear 9 ball check valves) Ball float molecular compound lining fluorine plastic check valve 10) Ball float molecular compound lining fluorine plastic Y type check valve 11) Efficient silent check Industrial Valves 12) Basins ease conflict check 13) With a pneumatic swing check valve closing device 14) The swing check valve with the pneumatic device 15) Internal pressure sealing cover once-through swing check valve (16) With minimum flow nozzle of swing check valves 17) The wafer silencing check 18) Thin check valve to the clamp 19) For the dual plate check valve of the gas 20) Double disc plate ease conflict check 21) Other electric slow closed butterfly check valve is pressed by force, temperature, material, size, in the form of a petition to distinguish clearly. Open-close part by medium flow and strength to open or closed, to avoid medium counter-current valve check valve. 2. Swing check valves can be divided into single type, more than double disc type and disc type 3 kinds. The check valve ( 一个- - - - - - Way Marine valve valve) Which is called: the check valve and check valve, single valve, or a one-way valve, its utility is safeguard medium pipeline directional flow without the function of the flow. 。 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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