With the continuous development of society and the continuous progress of science and technology, various pipe fittings have entered people's vision, such as fire resistant pipe fittings, malleable steel pipe fittings, steel wire fittings, plastic lined pipe fittings, fire protection pipe fittings, etc. Next, let's take a look at the advantages and key purchasing points of fire fittings.
1、 Advantages of fire protection pipe fittings
Fire pipe fittings are made by combining magnesium or rare earth magnesium with gold spheroidizing agents. Before pouring, molten iron is added to spheroidize the graphite, reduce stress concentration, and make the steel pipe have the advantages of high strength, high elongation, impact resistance, and corrosion resistance. The inner wall is lined with cement mortar, which improves the water environment of the pipeline, increases water supply capacity, and reduces energy consumption. The nozzle adopts a flexible interface, and the elongation of the pipeline itself is large, making the pipeline more flexible. Buried pipelines can synergistically interact with the soil around the pipeline, improve the stress state of the pipeline, and thus improve the reliability of pipeline network operation. Therefore, the water supply industry usually uses cast iron pipe fittings as the main pipe fittings.
Fire pipe fittings have advantages such as strong corrosion resistance, good pressure and bending resistance, convenient connection, no odor, and no health hazards. The appearance of cast iron pipe fittings provides a new type of pipe water supply industry with excellent performance for China's water supply. In order to better apply cast iron pipe fittings to the project, designers and construction personnel should be familiar with their characteristics, constantly find problems and solve them, so that the design is more reasonable, the construction is more standardized, and the new pipeline plays a greater role in the water supply project.
1. Fire fittings have advantages such as high water supply pressure, resistance to external loads, and geological conditions. This pipe has advantages such as high strength, good toughness, corrosion resistance, flexible interface that is easy to install, strong impact resistance, and low labor intensity. In areas with poor geological conditions and areas where highways cross, there is no need for additional processing of steel pipes, coupled with corrosion resistance, which can be used in coastal and saline alkali areas. Widely used in underground pipeline engineering. Large pipeline installation projects can better reflect the advantages of convenient installation and low labor intensity.
2. Due to the use of flexible joints, the construction of fire pipe fittings is more convenient, which can improve construction efficiency, improve construction conditions, and reduce construction costs. Moreover, most of the interfaces are connected with rubber rings, which is easy to operate, shortens the construction period, and reduces construction costs.
2、 Key points for purchasing fire-fighting pipe fittings
Pipe fitting products are highly praised by customers for their low installation cost, convenient maintenance, and reliable product performance. Currently, there are a large number of Mike pipe fitting products on the market. Most products have good quality, but defective products are inevitable. If you unfortunately buy a defective product, then you are unlucky. Therefore, we must learn how to identify the quality of pipe fittings. Let's go into more detail below.
1. Observing the thread length of fire pipe fittings, it is generally found that fire pipe fittings with poor quality are shorter. Good pipe fittings should prevent corrosion. The surface of the pipe fittings has a layer of zinc plating, which is first heated and galvanized before processing the threads and then processing the threads. However, poor quality pipe fittings require thread processing before galvanizing or replacing with other coatings. This is low-cost, but the anti-corrosion effect is not good, and the pipeline will rust after installation, Affects water quality.
2. If the sound is relatively light and brittle, and there is no obvious deformation, concavity, or fracture on the surface of the fire-fighting pipe fittings when struck, it indicates that the strength and toughness of the pipe fittings are very good.
3. Please refer to the weight of the fire-fighting pipe fittings, which must meet the standard. If the weight of the pipe fitting is too light, it means that the pipe fitting has cut corners or used inferior materials during the manufacturing process, and such pipe fittings are not qualified.