By the end of valve structure way: 1. The category by the valve according to the position of the stem turnbuckle points have turnbuckle, turnbuckle type. The valve is only suitable for use in the whole paper and seated, to adjust and throttling is not allowed. Once-through fluid resistance small, usually for containing solid particles or viscosity of Marine valve body fluid. By the end of the valve opens, the opening of the disc height, one hundred percent to one hundred percent of nominal diameter 25 ~ 30, traffic has reached maximum, to express the valve has reached the whole paper. 3. Poor regulation performance. 。 When medium by below the disc into the valve, the operation needs to overcome the resistance force, is the stem and packing friction and the initiation of thrust by medium pressure, close the valve strength is stronger than open the valve, so it's bigger, the diameter of the stem or stem top bending failure happens. 2. By the way the body has a straight-through, once-through and an Angle of 90 degrees. 2. Uncomfortable or used for larger particles, viscosity, easy to medium of coke. According to the flow of media, have straight-through type, straight and Angle. By the end of valve installation and protection should be paid attention to the following projects: 1, hand wheel, lever operation of the valve can be installed on no matter what position of the pipeline. Q: what is the end of the valve? Answer: the opening and closing of the valve is the plug valve, tightly closed like the simplest surface or cone, the disc along the fluid core line of linear motion. develops in our country has been ordered to that by the end of valve flow, one sees fit and use from top to bottom. By the valve ownership forced tightly closed valve, the valve is closed, it is important to increase on the disc pressure force, to force the tightly closed surface is not leaking. Stem has up and down movement way, the lever ( The valve stem up and down, the handwheel is not up and down) , there are up and down rotating lever ( The handwheel with spin up and down together, the stem nut is located in the body) 。 2. Small office tour, opening and closing time is short. 2, hand wheel, lever and wei motivation, for sling is not allowed. At the same time, under the media effect, this type of Industrial Valves is also relatively narrow clerestory. The valve has the following advantages: 1. Simple structure, production and maintenance more convenient. By the valve in tightly closed way points, there are packed tightly closed tube tightly closed as of valve by valve and pattern. So by the end of valve position of the whole paper, should by the disc stroke to vote. In recent years, from the tightly closed valve after the show, the valve is replaced by the disc above the medium flow direction into the valve cavity, then under medium pressure utility, close the valve of the force is small, and the strength of the valve, the valve stem diameter can detract from accordingly. 3, the flow of media should be in direction of arrow shown in exactly the same valve body. The lack of the valve as follows: 1. Fluid resistance is big, open and closed when the required force is larger. 3. Tightly closed, tightly closed between friction force is small, the survival of the fixed number of year is longer than the other. Straight-through are the most common type of structure, but the maximum resistance of the fluid. More than 90 degree Angle type body sees fit and use forging, suitable for use in small drift diameter, high pressure of the valve. 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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