If the opening of the wood shake plan dn1oo of the gate valve how to write

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.

It is recommended to choose online recruitment, and to raise the chain to choose the industry recruitment and job search, professional talents will not go to the talent market and local or comprehensive job search, recommend a valve recruitment, facing the whole country, in Zhejiang valve recruitment of many enterprises, such as: Bray (China), Tyco Fluid, Linuo Valve, ITT, Bethel, Hengtong Electromechanical, etc.

Introduction to Pump and Valve Talent Network.

In 2004, Zhengnasun Pump Valve Talent Network was launched and began operation;

In 2005, the number of registered resumes exceeded 37,000, and the average daily number of visits exceeded 4,000;

In 2006, it became the preferred recruitment of pump and valve enterprises**;

In 2007, the team of pump and valve talent network was expanded to 10 people, and more professional service to the majority of customers and friends in the pump and valve industry;

In 2008, the number of service enterprises exceeded 3,600;

In 2009, as of December 31, the number of resume registrations of pump and valve talents exceeded 10,000, and the average daily number of visits exceeded 60,000;

In 2010, the mobile WAP version was officially launched, and we are still working hard to ......

To develop a brand new valve by yourself, it is really unnecessary, the investment is large, and the risk is large. The new varieties of valves are imitated from foreign countries. The domestic ones are also copied from each other.

Today's valve designers are actually the ones who draw the valve drawings, not the real design.

That's what I'm doing, this technical content is not high, I should really consider changing careers, you can consider developing in terms of quality and technology, or procurement, you can use your knowledge and experience!

I'm about to change, but I haven't found it yet! Hey.

If you want to learn the design of valves, it is best to design valves that replace inlets, so that the material will be valuable.

Confused. How much is your salary now?

According to the traditional model, enterprises generally choose to recruit after the year, and they will choose a good recruitment channel before the year. Choosing a good recruitment channel can save HR a lot of money.

Choose according to the job you are looking for. Positions similar to some clerical positions, or positions that do not require work experience in the industry, can be solved through three comprehensive recruitment** + local recruitment**.

Similar to some technical, sales, and management mid-to-high-end positions, those who need work experience in the industry can pass industry recruitment**, and now every industry has industry recruitment**, which seems to be under the Yingcai network. Like the one upstairs, it can be solved through industry recruitment**: pump and valve talent network.

In-depth knowledge is also required when choosing an industry-based recruitment**. Similar to the professional knowledge and service attitude of the salesman, because it is an industry recruitment, there is a special person in charge, so there is no need to worry about finding customer service personnel. ** Word of mouth can be inquired about through peers.

The above is my personal opinion. Hope it helps.

The boss above, people are recruiting valve engineers, okay. It's not about submitting a resume to find a job! Landlord, you can try it on the pump valve talent network! Good luck finding good talent

First of all, different valve types are used in different occasions, different materials, different pressures, different temperatures, different media, and different ways of acting, these things are designed.

A valve, diameter 1 inch, internal size of half an inch, a quarter of an inch, five eighths of an inch, three-quarters of an inch, the internal parts of stainless steel, carbon steel, stainless steel, strong corrosion resistance, high wear resistance, internal parts have different processing methods, carbide coating, there are non-plating, internal parts have different flow coefficients, different flow capacity, different CV values, different adjustable ratios cause valves to have different openings, different pressures, resulting in different actuators of valves, Different temperatures, different valve structures, and different accessories cause valves to have different ways of action.

Can't think that a valve is placed there, just a few parts to see it will be, that is not called design, the actual working conditions change slightly, you see the valve immediately has dozens of changes, only the temperature of 185 degrees Celsius and 230 degrees, the same valve has to be redesigned, the material and structure are all changed, this is a very rigorous thing, if a valve design has a problem, the site working conditions can not be satisfied, it may cause all the pipelines in the entire plant to be damaged.

The definition of the valve is very simple, it is a switch, do you know the faucet, that is the valve, the valve is an important control unit used for pipeline transportation, the tap can be closed, can be opened, can be opened large, can be opened small, it is called the tap water valve. But a factory covers an area of hundreds of acres, tens of thousands of pipes, thousands of valves, it is impossible to manually screw the valve, so the valve is equipped with an automatic control unit, with a computer switchboard to control, for example, I pump water from the Yangtze River with a diameter of 2 meters of water pipe, hundreds of tons of water per minute, water pressure of dozens of kilograms, but in the end I just want to let the water flow out drop by drop, then it is necessary to use the valve control, layer by layer of water interception, each valve intercepts a little water and water pressure, after 50 valves, all that's left is the drop by drop of water I want.

Need to buy some reference books 1) Valve Design Manual.

2) Machinery Manual.

3) Casting and forging and other process manuals.

4) Be familiar with the valve standards, materials, processing tolerances, etc. you want to design, 5) Software, 3D drawing is not difficult to learn, but the software of stress check and water conservancy check needs to be told by others to write experience!

The most important thing I think is to go to the factory site more, and the use of the valve site is very important to be familiar with the working principle!

Of course, it would be better to have someone from the older generation with you!

For the landlord raised the question, I also have personal experience, just graduated from the mechanical major of the university, into the valve factory to do design work, the valve basically do not understand, even the basic concept does not understand, but we have old engineers with the first to try to draw some small parts on the valve, and slowly to specifically design a certain type of valve, so that the growth is also fast, if there is no such condition, at least the company will give you the corresponding training, in fact, if your manager recruits you, if you are familiar with the environment, Or keep telling you to do it yourself, I suggest you still think of another way, a person who has never been engaged in valve design, just rely on himself to see that it is almost unimaginable to design a product, of course, if you want to become a good design engineer, 3-4 time is still necessary. I hope you will make a careful choice based on the actual situation.

I'm in the same situation as you now, and I'd like to ask for more advice and I'll go with me when I go to survey.

When colleagues talk about valve knowledge, listen more.

Go to the assembly shop and look at the parts and stuff like that.

Also, read more design manuals.

The main standards of shut-off valves:

1. GB T 12233-2006 "General Valve - Iron Globe Valve and Lifting Check Valve".

2. GB T 12235-2007 "General Valve Flange Connection Steel Globe Valve and Lifting Check Valve".

3. JB T53174-94 "Globe Valve Product Quality Classification".

4. JB T53165-92 "High Pressure Balance Globe Valve".

5. GB T 587-2008 "Marine Flange Bronze Globe Valve".

6. GB T 590-2008 "Marine Flange Cast Iron Globe Valve".

7. GB T 8464-2008 "Iron and Copper Threaded Connection Valves".

8. Internal thread connection gate valve, globe valve, ball valve, check valve Basic size Iron globe valve

The length of the valve structure is according to the standard of JB T2203 1999 "Structural Length of Globe Valve", and the connection size of the flange is according to GB T9119-2000 standard pressure test, according to GB T13927-2008 "Industrial Valve Pressure Test", and the standard test is JB T8859-2004 "Static Pressure Life Test Regulations for Globe Valve".

The acceptance of the valve is according to the SH3518-2000 standard.

See what else needs to be asked?

For users, you don't need to design, just choose. For manufacturers, it is necessary to design high-quality and inexpensive products (valves).

Let me analyze it for you from the perspective of consumers.

1.First of all, the valve definitely needs to be designed, although we choose the valve according to the working conditions and then choose the combination from your product. However, according to the products provided by each manufacturer, their respective performance is different, for example, we require that the parameters such as opening, flow rate, noise, pressure loss and other parameters should meet the corresponding standards, how to achieve, these things need to be designed, and how to do the best is something that needs to be considered by the designer.

2.At present, domestic valve technology is far behind Europe and the United States and other countries, many technologies are still too far behind, such as the same valve specifications, people's valve life is longer than our domestic service life, quality performance is better. From this point of view, we still have a lot of things to improve.

Of course, it needs to be designed, and it is generally designed by professional people. Standard parts don't need to be designed, but drawings need to be drawn! Non-standard to be designed.

The standard parts are all parts that have been designed and have certain standards. Now that it's all designed, what else are you going to design? Do you want to design your own valve? I've had this idea before, but I just didn't have the opportunity to implement it.

The selection of the foliage is very important, and the sealing ring should be imported. Extend the bonnet.