How about Chushui 304 stainless steel flange ball valve DN50

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 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.

The stainless steel flanged ball valve only needs to be rotated 90 degrees and the torque is very small to close tightly. The completely equal body cavity provides a straight-through flow path with minimal resistance to the medium. Ball valves are generally considered to be most suitable for direct opening and closing, but recent developments have designed ball valves to throttle and control flow.

The main feature of the ball valve is that it is compact in structure, easy to operate and maintain, and is suitable for general working media such as water, solvents, acids and natural gas, but also suitable for media with harsh working conditions, such as oxygen hydrogen peroxide, methane and ethylene. The ball valve body can be monolithic or combined. This type of valve should be installed in the horizontal direction of the pipeline.

Yes, ball valves have flange connection, threaded connection, quick assembly, etc.

One of the easiest ways to teach you is to look at it with your eyes to see if its workmanship is fine, if it is rough, it will definitely not be expensive. You get what you pay for

Because of the stainless steel flanged ball valve: depending on your material:1. Generally, ordinary materials** are cheaper2. If it is 304, the material will also be based on the grade of the grain: 1 grain, 2 grains, until it reaches 8 grains, it is positive 304

3。It's 316 material.

4。It's 316L material.

In this way, ** is different...

If the gap is large, it must be cheap. Of course, it is not excluded that defective products will ask for prices and deceive customers.

However, it is easy to identify the large difference in quality:

1. Look at the appearance. This step is very effective, often defective products are not good to pass this level, good valve production is fine, the surface treatment is very good, even a variety of labels, accessories are not sloppy, the head is the way. All in all: good-looking, one is Xi Shi, the other is Zhu Bajie, obviously different.

2, Li Dai Taozhuang. The first contact with a business, only indicates that the defective product, and has been on the defective product, occasionally casually ask about the relevant situation of the good goods, (because you want a good one, he may give you the second;If you want the second, he can only give you the second) Don't finalize it immediately, go around for a few days and then say that the situation has changed, and then enter the good goods.

3. Measure the size. Good valves in the structure of the size of the full compliance with the relevant standards, generally we only need to determine the interface flange outer diameter and thickness on it, defective products often the outer diameter is not large enough, the thickness is not thick enough.

4. Check documents. The authentic valve related information is complete, and even the information paper is not ordinary.

5. Implement means. It is difficult for us to have the conditions to test the specific content of chromium nickel, but you can quietly hurt it in the valve body (usually on the flange side) when you look at the goods, put some salt water or dilute acid on it, and look at it again in the future (more than 10 days, the longer the better), if the wound turns yellow, if the wound is as new, it is better. (Hahahahaha, you have to be justified twice back and forth, don't be discovered by the merchant).

6. The soldiers are not tired of cheating, grinding and fighting, and bluffing. Let the merchant feel that you are a big customer, a big insider, a big choice, a big love, a small bargain. Wait as much as you can think of, if there is still no downward trend, it is good goods (the cost of good things is high after all).

Choose a few more, and choose the lowest in the mainstream. **To a certain extent, it can reflect the quality of the project.

You can use the **low price to reduce the price.

Why choose to buy a lot of valves in Shijiazhuang, the market has the valves you want, and now it is very convenient to buy the best goods.

DN65 Pneumatic 304 Ball Valve Tax Not Included Shipping Fee** is 1150

It is not possible to provide only the nominal diameter, there are other parameters to be provided, such as pressure.

Structure: two-stage, three-stage.

Material: That kind of stainless steel.

The above parameters can be displayed on the model number. Write the model number clearly to know**.

This is normal. The environment is not good, there is some sewage. was oxidized.

Stainless steel flange ball valve face rusty? Generally, this will not be the case, and the Guanning valve can be consulted.

The main thing is that it is not real stainless steel, and the nickel contained in it is not up to standard.

It must be a quality problem, it is not a pure 304 material, and the nickel content is not enough.

Stainless steel can't rust so quickly, stainless steel is also rusty, but not as much rust as carbon steel, not as fast as carbon steel, I estimate that there are two points, the first may be that you bought the wrong goods, let people cheat, the second is that you didn't ask clearly.

It is likely that you have bought a defective ball valve. Stainless steel can also rust, but the process is slower.

Stainless steel takes a long time to embroider, you may encounter a bad manufacturer, maybe the ball is an iron ball.

I have a cast steel ball valve with stainless steel balls on my side

There are many kinds of stainless steel, there are decorative stainless steel, there are medical stainless steel, and you must be a stainless steel of poor quality.

It is mainly used to cut off or connect the medium movement in the inner cavity of the pipeline, or for the regulation and control of fluids, in which the hard sealed ball valve core has a strong shear force between the metal seat of the hard-matched cemented carbide, especially suitable for media containing fibers and tiny solid particles. ——Professional hard seal ball valve.

This is the material difference, 316L has higher purity and fewer magazines. That is, it is often said that the C carbon content is lower.

The material grade is different, and the one with L is good.

The main difference is whether the chemical composition meets the standard or not

The material of the intermediate frequency is poor, and the content of matte, phosphorus and carbon is unqualified.