Straight pipe thread fittings refer to pipe fittings with threads, which are commonly used in water and gas pipes, small diameter water pipes, compressed air pipes and low-pressure steam pipes. These pipe fittings are connected by threaded pipe ends to form pipelines, and appropriate adhesives can be applied to the threads to ensure sealing. The main function of Straight pipe thread fittings is to make the inner and outer threads of the pipe fit tightly through threaded connection, thereby realizing the connection and sealing of the pipe.
Common Straight pipe thread fittings materials
Plastic
Commonly used plastic Straight pipe thread fittings materials are mainly HDPE fittings and PVC fittings. They have excellent wear resistance and corrosion resistance, high strength and high precision, light and easy installation, environmental protection and energy saving, low maintenance cost, etc., and are widely used in various pipeline systems.
Carbon steel
Carbon steel Straight pipe thread fittings are a commonly used pipe fitting material, which is mainly composed of two elements: carbon and iron. Carbon steel threaded pipe fittings have good plasticity and machinability, and are suitable for some low-pressure and low-temperature pipeline systems. Its main characteristics are low price, high strength and good toughness, so it is widely used in some ordinary industrial fields.
Stainless steel
Stainless steel threaded pipe fittings are a kind of pipe fitting material with good corrosion resistance. The chromium element it contains can form a tight oxide layer with oxygen in the air, which plays an anti-oxidation and anti-corrosion role. The advantages of stainless steel threaded pipe fittings are high temperature resistance, acid and alkali resistance, corrosion resistance, and beautiful appearance, so they are widely used in medicine, food, chemical industry and other industries.
Alloy steel
Alloy steel threaded pipe fittings are pipe fittings made by alloying carbon steel and other components. Because of the addition of alloy, alloy steel threaded pipe fittings have better heat resistance and corrosion resistance. At the same time, it also has excellent strength, toughness and hardness, so it is widely used in high temperature and high pressure, chemical industry, aerospace and other fields.
How to choose the right Straight pipe thread fittings?
1. Consider sealing performance: For applications that require sealing, a thread type with good sealing performance should be selected.
2. Choose the right material: Choose the right material according to the corrosiveness, temperature and other factors of the application environment. Different materials have different corrosion resistance and mechanical properties. When choosing, the reliability and safety of long-term use should be considered.
3. Pay attention to size matching: Make sure that the selected pipe fittings match the size of the pipe, including diameter, length, etc. The size code of the pipe thread can directly adopt the size code of the pipe. Through the size code, you can easily know what size and specification of pipe thread should be processed on each pipe.
4. Consider the application scenario: Select suitable pipe fittings according to the specific application scenario. For example, for applications that need to withstand high pressure or high temperature, pipe fittings with higher strength and temperature resistance should be selected. At the same time, it is also necessary to consider whether specific industry standards or specifications need to be followed.
Plastic Straight pipe thread fittings development
With the development of science and technology and the rapid development of the petrochemical industry, more and more industries in the engineering water supply system and drainage system use plastic pipe fittings instead of conventional cast iron pipes, galvanized pipes, plastic-lined steel pipes and other materials. Compared with traditional pipes, plastic pipe fittings have significant advantages such as light weight, corrosion resistance, low water flow resistance, energy saving, easy and quick installation, and low cost, and are favored by the pipeline engineering industry. Moreover, plastic pipes and fittings have made great progress and improvement in design theory and construction technology in buildings, and have accumulated rich practical experience, which has led to plastic pipes and fittings occupying a very important position in building water supply and drainage pipeline projects, and formed an unstoppable development trend.
