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It depends on what kind of shut-off valve you have.
There are the following kinds of globe valves installed at home: iron globe valves (easy to rust), copper globe valves (more expensive, not easy to rust), stainless steel globe valves (rare) and plastic PP-R globe valves (cheap, generally used for PP-R, PUV, PPU pipes) and so on.
The first three kinds of globe valves can not be replaced, the metal valve core, it may rust after a period of time, you may not even be able to dismantle it at that time, how to replace it?
The PP-R shut-off valve can be replaced. I sell plumbing valves, we have not heard of the spool of the metal shut-off valve, but the spool of the PP-R shut-off valve has been purchased a lot.
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Here are some of the well-known brands recognized in the 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 are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, 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 old globe valve at home can be replaced. In operation, all kinds of valves should be complete and intact. The bolts on the flange and bracket are indispensable, and the threads should be intact and not allowed to loosen.
The fastening nut on the handwheel should be tightened in time if it is found to be loose to avoid wearing the connection or losing the handwheel and nameplate. If the handwheel of the globe valve is lost, it is not allowed to be replaced by a live wrench, and it should be completed in time. The packing gland is not allowed to be skewed or without preload clearance.
For the globe valve in the environment that is easily contaminated by rain, snow, dust, wind and sand, the valve stem should be installed with a protective cover.
The ruler on the globe valve should be kept intact, accurate, and clear. The seals, caps, and pneumatic accessories of the globe valve should be complete and intact. It is not allowed to knock, stand on or support heavy objects on the operating shut-off valve.
In particular, non-metallic valves and cast iron valves, it is necessary to prohibit the maintenance work of the valve grease before welding and before the production and after the valve professional maintenance work, which plays a vital role in the valve service production and operation, and the correct and orderly and effective maintenance will protect the valve, so that the valve can function normally and prolong the service life of the valve. Valve maintenance may seem simple, but it's not. There are often overlooked aspects of work.
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Summary. To clean the pipeline, if it is inconvenient, only remove the valve to clean the inner cavity of the valve, and then can not close, the sealing surface has been broken, replace the valve.
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To clean the pipeline, if it is inconvenient, only remove the valve to clean the inner cavity of the valve, and then can not close, the sealing surface has been broken, replace the valve.
Generally, water pipe valves, especially household faucets and the like, use yard side ball valves. The valve is not closed tightly, and the seals inside are mostly damaged. The opening and closing parts of the ball valve are balls, and the surface of the ball is worn, so how to close it, the valve is still leaking.
Two methods:1Change the valve 2
Disassemble the valve, see what the valve is noisy, and then consult the manufacturer if it sells sealing late rubber parts.
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