PVC (polyvinyl chloride) pipes have been widely used in many fields such as construction, water supply and drainage, industrial pipelines, and communications due to their excellent corrosion resistance, pressure resistance, and low price. As an important part of the pipeline system, PVC pipe fittings undertake multiple functions such as connection, steering, support, and diversion. Among the many specifications of PVC pipe fittings, 200mm pvc pipe fittings are often used in medium and large diameter water supply and drainage projects, chemical pipelines, rainwater drainage systems, etc. due to their moderate size. This article will elaborate on the application fields, specification definitions, and related technical requirements of 200mm pvc pipe fittings.
Application fields of 200mm PVC pipe fittings
1. Water supply and drainage system: In urban water supply, drainage and sewage treatment systems, 200mm PVC pipe fittings are often used to connect main pipes or medium-sized branch pipes. Because PVC materials have excellent corrosion resistance and anti-aging properties, they will not be affected by water quality during long-term use, and can ensure smooth water flow. In addition, PVC pipes are easy to connect and there are many types of pipe fittings, which can meet the different functional requirements of water supply and drainage systems. For example, elbows, tees, flanges, brackets and other pipe fittings have been widely used in 200mm pipes.
2. Chemical pipelines: Because PVC pipe fittings have strong chemical stability and can resist most acid and alkali corrosion, 200mm PVC pipe fittings are often used for material transportation in the chemical industry. Especially in some low temperature environments, PVC pipe fittings can maintain high physical properties and adapt to different types of chemical media transportation.
3. Rainwater discharge system: In urban rainwater discharge projects, 200mm PVC pipe fittings are widely used in rainwater collection, transportation and discharge systems due to their good corrosion resistance and wear resistance. Especially in urban construction, rainwater drainage pipes usually need to have a large water transmission capacity, and 200mm pipes can not only meet the flow requirements, but also reduce the risk of pipe aging due to its corrosion resistance and extend the service life.
4. Power and communication pipelines: 200mm PVC pipe fittings are also used in the power and communication industries, mainly for the protection of power cables and optical cables. In the construction of power and communication pipelines, pipelines need to have strong pressure resistance, corrosion resistance and other characteristics. PVC pipe fittings just meet this demand and are highly economical.
Specifications of 200mm PVC pipe fittings
The specifications of PVC pipe fittings usually include the outer diameter, wall thickness and connection method of the pipe fittings. Among the 200mm PVC pipe fittings, the following common specifications are mainly included:
Outer diameter (OD)
The outer diameter of 200mm PVC pipe fittings is 200mm, which refers to the diameter of the outside of the pipe. The outer diameter is one of the key factors in measuring the size of the pipe and the fitting pipe, which directly determines the flow carrying capacity of the pipe.
Wall thickness (SDR)
The choice of wall thickness is mainly determined by the working pressure of the pipe and the environmental conditions in which it is located. The wall thickness of PVC pipes is usually expressed by SDR (Standard Dimension Ratio), which is the ratio of the outer diameter of the pipe to the wall thickness. Common SDR values are 13.5, 21, 26, etc. Different SDR values correspond to different pressure levels. For example, SDR13.5 is usually suitable for higher pressure occasions, while SDR26 is suitable for low pressure or low intensity environments.
SDR13.5: Applicable to high pressure occasions, the pipe can withstand greater internal pressure, usually used for water supply pipes.
SDR21: Applicable to medium pressure occasions, widely used in drainage pipes.
SDR26: Applicable to low pressure occasions, often used in sewage pipes or rainwater pipes
Connection method
There are two main connection methods for PVC pipe fittings: bonding and socket.
Bonding connection: PVC special adhesive is usually used for connection. This connection method requires the contact surface of the pipe fitting and the pipe to be clean to ensure that the adhesive can fully function.
Socket connection: One end of the pipe is inserted into the interface of the pipe fitting, and a rubber seal or a special rubber ring is usually required to ensure the sealing of the interface. This connection method is more common, simple to operate and reliable.
Material and performance
PVC pipe fittings are usually made of high-quality polyvinyl chloride raw materials with high strength, corrosion resistance and good chemical stability. PVC pipe fittings can usually withstand high temperatures and pressures and are suitable for different working environments.
Pipe fitting types
200mm PVC pipe fittings are of various types, including elbows, tees, reducers, flanges, sleeves, brackets, etc. Each pipe fitting has different specifications and uses, which can meet the functional requirements of pipe connection, branching, steering, etc. in different systems. Several common pipe fittings are as follows:
Elbow: used for pipe steering, common elbows with different angles such as 45 degrees and 90 degrees.
Tee: used for diversion or confluence, it can realize the connection of one pipe into two pipes.
Flange: used for connecting pipes with other equipment, usually used in high-pressure pipe systems.
Service life
PVC pipe fittings usually have a long service life, generally up to 50 years or more. Its corrosion resistance makes it particularly excellent when exposed to chemical media or humid environments. Especially in municipal construction and water supply and drainage pipe systems, PVC pipe fittings can reduce the frequency of pipe replacement and maintenance due to their stability and anti-aging properties.
200mm PVC pipe fittings have been widely used in many fields due to their excellent corrosion resistance, wear resistance, and easy connection. Whether it is water supply and drainage systems, chemical pipelines, rainwater discharge, or power communication protection, 200mm PVC pipe fittings can provide stable and reliable connections and support. With the continuous development of technology, the materials, specifications, and connection technologies of PVC pipe fittings have been continuously improved, further improving their application efficiency and economy in engineering. Understanding the specification definition and application scenarios of 200mm PVC pipe fittings is of great significance to the design and construction of pipeline projects.
