Actually, for the globe valve, the most important thing is its influence on the resistance. When the resistance increases, it will first increase the transmission power, which will waste the...
Cast iron tee is produced according to certain technological methods and principles, which can ensure good production quality and guarantee in actual production and processing. The geometric...
Ferritic stainless steel: Ferritic stainless steel is steel with ferrite structure in use. The chromium content is 11%-30%, and it has a body-centered cubic crystal structure. This kind of steel...
The materials of cast iron tee are cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, etc. The ways of connection with pipes are: direct welding (the most commonly used...
How to identify stainless steel and "stainless iron" articles? It can be identified from the marks that many stainless steel products such as stainless steel pipes are stamped with steel seals,...
What is a butterfly check valve? Butterfly check valve or double disc check valve overcomes the limitation of diameter and pressure drop of swing check valve and disc check valve. The disc of swing...
Stainless steel obtains its corrosion resistance by a very thin, firm and fine stable chromium-rich oxide film (protective film) formed on its surface, which can prevent oxygen atoms from...
We will firstly talk about why stainless steel pipe fittings is not easy to rust, then explaining why stainless steel will rust. Stainless steel is not easy to rust, which is closely related to...
Because the wipIng motion of the butterfly valve plate, most butterfly valves can be used for medium with suspended solid particles, and can also be used for powder and granular medium according to...
There is a sealed cavity in the electromagnetic valve for water, which is trepaned with holes at different positions, each of which leads to different oil pipes. There is a valve in the middle of...
1. Small and light, easy to disassemble and maintain, and can be installed at any position. 2. The structure is simple and compact, the operating torque is small, and the 90-degree rotary opening...
In the spring of March, the global steel market continued to push up slowly under the guidance of Asian and Chinese markets. As of March 8, the global benchmark steel price index of 116.5 points...
1. Because the inferior square pipe is not processed properly, many burrs exist on the surface, which will easily scratch the surface of the pipe. So here comes the first identification...
Winter Construction 1. Bottom of trench and sand cushion: The ductile iron pipe shall be covered tightly and compacted in time according to the temperature, to prevent the pipe from freezing. Keep...
Pipeline engineering includes gas pipeline, water supply and drainage pipeline, air pipeline, etc. The construction quality of these pipelines directly affects our daily life and must be carefully...
Stainless steel gate valves are of great value in current industrial applications. So how does their application value represent? First of all, it is able to transport a variety of different media....
A Brief Introduction to Fully Welded Fixed Ball Valves for Gas: Fully Welded ball valve is widely used in underground pipelines of city gas, natural gas transmission pipelines, pressure regulating...
Petrochemical special valve: In petrochemical special valves, the single-acting spool valve and double-acting spool valve in the catalytic cracking device are typical. The single-acting spool...
Petrochemical refers to the production of gasoline, kerosene, diesel, lubricating oil and liquefied petroleum gas and other petroleum products using petroleum and natural gas as raw materials; the...
(1) The valves used in the water supply pipeline are generally selected according to the following principles: 1. When the pipe diameter is not more than 50mm, a globe valve should be used. When...