General requirements for dark rod gate valves

The specifications and categories of dark rod gate valves should meet the requirements of pipeline design documents.

The model of the dark rod gate valve should indicate the national standard number requirements according to it. If it is an enterprise standard, the relevant description of the model should be indicated.

The working pressure of the dark rod gate valve requires the working pressure of the pipeline, and the working pressure that the valve can bear should be greater than the actual working pressure of the pipeline without affecting the first floor; Any side of the elastic seat seal gate valve should be able to withstand the working pressure value of the valve without leakage; When the valve is opened, the valve body should be able to withstand the requirement of twice the working pressure of the valve.

The manufacturing standard of the dark rod gate valve should indicate the national standard number based on it, and if it is an enterprise standard, the enterprise documents should be attached to the procurement contract.

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 open rod means that when it is opened, the handwheel will not rise.

The dark rod means that when it is opened, the handwheel will rise with it.

To distinguish between the dark rod gate valve and the open rod gate valve, the top of the dark rod gate valve in the drawing is a small nut, and the open rod gate valve has a protective stem protective sleeve (with a certain height). I hope it can help you, if I really don't understand, I can go to the picture or chat privately.

There will be in the general drawing description.