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What you are talking about is a balanced valve on the top of the high-pressure valve, which is to open a few holes in the valve core to let the water go up, and the upper and lower pressure is balanced so that it is more labor-saving to open. I have a structural diagram of , but I won't pass it.
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Generally, the width of the bridge is the same as the road! Sometimes the road has 4 lanes, and the bridge has only two lanes, which is a narrow bridge, and the valve is the same, and the diameter reduction valve is mainly to save costs!
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Here are some of the well-known brands recognized in the flat gate valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:
The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.
First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.
These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.
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The ram is not the same as the valve body. The deflector hole means that there is a hole the same size as the runner in the ram, so the ram and runner should be higher.
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The small hole is used for deflation, sometimes the pump is running but can not pump water, it should be deflated, know the water until the direction, these valves are command valves, there should be a direction arrow of water flow on it, if you don't ask again!
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The small holes are for venting and can also be used to relieve pressure.
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Function: If this spring valve is in the general form, then this hole will be blocked to prevent the medium from leaking from this port.
If this spring valve is a balanced bellows type, then this hole is open. The bellows completely isolates the valve cavity from the spring cavity, and when the valve is opened, the bellows compresses and the pressure in the spring cavity rises, thus hindering the take-off performance of the safety valve. Therefore, it is necessary to drain the spring cavity at this time.
The hole has to be opened.
Therefore, the form of the spring valve can be judged according to the opening and closing of this small hole.
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If the pressure is too high, the harm is greater.
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When the pressure exceeds the upper limit of the safety valve, it is relieved.
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The function of a small valve on the ball valve body is: pressure relief, that is, through the control of the valve, the pressure in the ball valve body is controlled.
Valves are control components in fluid transportation systems, which have the functions of shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves for fluid control systems range from the simplest shut-off valves to the most complex valves used in automated control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals and radioactive media.
According to the material, the valve is also divided into cast iron valves, cast steel valves, stainless steel valves, etc.), chromium-molybdenum steel valves, chromium-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard customized and other valve materials.
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That's for decompression. When the valve is closed, the pressure is collected in the inner cavity of the valve and the pressure is relieved by opening the valve. The ball valve equipped with this kind of valve is generally a fixed ball valve, and the sealing of the fixed ball valve is sealed by the floating of the valve seat.
When the pressure in the inner chamber is relieved, there will be a pressure difference between the inlet and outlet ends of the pressure seat, which makes it easier to seal. Generally, this is only installed on DBB (Double Blocking and Draining) ball valves.
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In what location? What pipes are connected to?
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Hello! You can look at the bottom of the valve, not to mention that the bottom of the diversion hole should be longer in the middle of the tremor, of course, this crack finger is not wanton cultivation is expressed in professional terms.
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