How to test the DN25 flange ball valve of natural gas engineering

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.

On the valve pressure test machine, the pressure test is done according to the valve test standard. Generally, the nominal pressure is multiplied by the test pressure.

It is enough to carry out the sealing test and the shell strength test according to the standard.

Strength test pressure - multiply the nominal pressure of the valve by a multiplier.

The high platform is a connecting disc for easy installation of actuators. High platform ball valves can be installed directly with the actuator, while ordinary ball valves require an additional bracket to be installed.

The high platform is used for the installation of actuators.

Flange At present, China generally adopts national standard flange. There is no difference except for the thickness of the flange.

I'll explain what each section represents, starting with the previous one. DN25 represents that the caliber of this ball valve is 25mm, your ball valve model in Q is the ball valve, 4 is the flange connection, 1 represents the structure of the ball valve is a floating ball straight through the flow channel, F refers to the sealing surface is fluoroplastic, 16 represents the pressure is 16 kg, and C refers to the valve body material is carbon steel. Also this ball valve is manual.

Shandong Huadian valve.

DN25 Internal Threaded Ball Valve: Internal Threaded Valve with an Inner Diameter of 1 inch (mm). The DN25 female threaded ball valve can be connected with pipes, fittings and fittings of the same specification (DN25). g1"The large diameter, pitch, and small diameter of the pipe thread.

DN25 Internal Threaded Ball Valve: Internal Threaded Valve with an Inner Diameter of 1 inch (mm). The DN25 female threaded ball valve can be connected with pipes, fittings and fittings of the same specification (DN25).

It is 25, and this DN25 logo refers to the inner diameter.

And the size of the threaded part of the connection should be greater than 25

DN25 is.

Nominal diameter. This is uncertain depending on the material of your ball valve.

Hello, I bought a stainless steel ball valve marked 1 inch, I actually measured it, it has an inner diameter of about 32 at the thread connection, is this correct??