As the carrier of fluid in pipeline system, it is necessary to control the flow rate, pressure and flow direction of fluid. The equipment required in use is valve. As an important part of pipeline...
Taking elbows as an example, if long radius elbows are made, the specifications and materials should be selected at first. It can be calculated by theoretical method, and then cut as per this as...
Process control As the functionality of the valve becomes better, its structure becomes more complex. Therefore, higher processing technology is required to ensure the function. Now, each key part...
Abstract This article introduces the processing characteristics of residual oil, heavy oil, wax oil and gasoline desulfurization in chemical plants. In view of the leakage problem in the use of a...
Operating principles and functions The bypass hydraulic pressure relief valve with the above-mentioned structure is used in the fluid pipeline system. It is installed on the bypass pressure relief...
In the water pump pipeline system, when the pump is suddenly stopped, the check valve at the outlet of the pump is quickly closed, causing the circulation flow rate in the valve outlet pipeline to...
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...