What are the procedures for taking orders on the online valve

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.

There is no procedure, just follow the usual form of receiving orders.

First of all, prepare the materials.

1. Prepare the full name of 2-3 companies

2. A copy of the ID card of all shareholders

3. Proportion of shareholders' capital contribution

4. The company rents the scope of Tongying

5. The registered capital of the company is Zhenli

6. The registered address of the company

7. A copy of the supervisor's ID card.

8. A copy of the ID card of the legal person.

And then the process. 1. To apply for company name approval online at the Industrial and Commercial Bureau, you need to log in with a U shield or digital certificate;

2. Shareholders are required to have a designated bank U shield or digital certificate, submit an electronic version of business license information online, and fill in the business scope of what they are mainly engaged in;

3. Go to the industry and commerce to get a paper business license certificate, organization certificate, tax registration certificate and seal engraving permit.

Fourth, with the business license legal person ID card to the professional engraving shop to engrave the official seal, financial seal, invoice seal;

Qianhai Qiying professional registered company. No address zero dollar registration. Adhering to the principle of one-stop service.

Open a ** store retail, and then open an Alibaba member wholesale!

To do valve design, it is better to do CNC, the general factory has nothing to do, the boss stares at it all day long, this work, it is recommended that you do not do it. It's good to do valve sales.

2D plane drawing or CAD

3D stereoscopic drawings must also be known, and the general industrial design uses the American software Pro-E

Valve design should understand the characteristics of materials, such as cast iron, stainless steel, copper, rubber, plastic, etc.

It is necessary to understand and be familiar with the design and production of casting products, machining, and other production processes such as rubber and plastic parts, so that you can know how to design more reasonably and accurately.

The design of the valve also requires a certain knowledge of material mechanics and theoretical mechanics, that is, the calculation of strength.

It is necessary to learn certain basic principles of valve design and master the basic structural elements of valves, such as: valve structure length, valve flange standards, etc.

Of course a little English basics is good as well.

Youling (by order) is a common name that refers to a union joint. It is a common pipe connector that can be easily installed and disassembled.

It is mainly composed of three parts: nut, cloud head and flat joint. The pipe connector machined after forging by round steel or steel ingot die, its connection form is divided into socket welding and threaded connection, socket welding is to insert the steel pipe into the socket hole for welding, therefore, it is called "socket joint", and threaded connection is to screw the steel pipe into the screw hole for connection, therefore, it is called "threaded union".

The valve has a single order, which refers to the valve with a union joint, which is a valve that is more convenient to assemble and disassemble.

By the order, it means joint. union

The API here refers to the standards specified by the American Petroleum Institute. Founded in 1919, API was the first national business association in the United States and one of the first and most successful standard-setting chambers in the world. One of the key tasks of API is to standardize equipment used in the oil and gas industry to ensure the safety, reliability and interchangeability of equipment used in the industry.

API standards mainly stipulate equipment performance, sometimes also include design and process specifications, standard development areas include oil production, refining, measurement, transportation, sales, safety and fire protection, environmental regulations, etc., its information technology standards include oil and gas industry EDI, communication and information technology applications.

API is an abbreviation for the American Petroleum Institute. API has relevant standards for different valve connections, such as ball valve standard API 608, check valve API 594, etc. You can check the relevant standards.

API is an American Petroleum Institute standard.

The pressure reducing valve is installed in the direction of the arrow of the valve body, and cannot be reversed, the inlet is the actual pressure, and the outlet is the design pressure. (The actual pressure is greater than the design pressure).

The solenoid valve can not be installed in reverse, low in and high out, deep in and shallow out, is its principle, installed in and leak.

The safety valve can not be reversed, the inlet is the setting pressure, and the outlet is relieved.

The filter can not be reversed, large angle in, small angle out.

The main difference between globe valve and ball valve is the different structural form. The globe valve has a low-in, high-out, one-way flow, the sealing form is sealed up and down, and the flow rate is limited by the structure of the valve body; The ball valve flows in both directions, the ball is sealed left and right, and the flow rate is equal to the pipe diameter. Ball valves are better than globe valves in terms of sealing, application range, and performance.

Ball valves are divided into manual ball valves, electric pneumatic (regulated) ball valves, and (miniature ball valves) according to the control form. It is widely used in small, medium and large pipelines such as chemical industry, printing and dyeing, oil and natural gas.

Gate valves are generally two-way sealed, butterfly valves on both sides of the sealing strength is not the same, globe valves, check valves and other directional signs are definitely not good, ball valves do not matter, but no matter what valve is the best according to the direction of the valve itself.

Gate valves, butterfly valves, and ball valves generally have no direction regulations.

The check valve is normally closed after being reversed.

The globe valve is reversed, which affects the pressure and sealing effect, and is easy to leak.

The resistance to answering will increase. 2.The most impactful is that the spool can be easily washed out over time due to the reverse impact of the medium on the spool. 3.The adjusting capacity of the globe valve is stronger than that of the gate valve, and if it is reversed, the regulating capacity will be disturbed or even lose the regulating ability.

Ask whether the medium will flow when the pressure is different.

The working principle of the non-return valve is to use the medium to flow through the inlet hydraulic control valve due to mechanical resistance and overflow head loss and decompression, so that the inlet pressure is higher than the pressure of the discharge valve cavity, this pressure difference p controls the discharge valve to close, to ensure the normal water supply of the backflow preventer, p is about 0 020 mpa。Once this pressure difference is less than this, the medium is in a critical state of backflow.

At this time, the spring of the drain valve automatically opens the drain valve, discharges the backflow water out of the pipe, and at the same time a large amount of air is supplemented into the valve cavity to form an air partition, which eliminates the backflow of the medium and effectively prevents the siphon from backflowing. At this time, the pressure in the chamber of the drain valve drops, and the drain valve closes automatically when p reaches the set value.

Question: I want this shut-off valve to be used for temperature control, if the direction is reversed, when the steam enters the preheating cylinder, if there is a pressure difference, will the steam flow?

Running gas, leaking water, what else can there be.