Pipe Fitting Bushing

1. What exactly is a pipe fitting bushing?

(I) Definition and composition

Pipe pipe fitting bushings are called "pipe fitting bushing" in English, and are generally called hexagonal internal and external threaded joints in China. They are usually made of hexagonal bars that are cut and forged, and then further processed. The types of threads used in pipe fitting bushings are diverse and can meet different usage requirements. They play an important role in many pipeline connection scenarios.

(II) Overview of functions

In the process of pipeline connection, pipe fitting bushings play an irreplaceable role. They are mainly used to connect two sections of pipes with different diameters and belong to internal and external threaded pipe fittings. For example, in the water supply and drainage pipeline system, when the pipe diameter needs to be changed, such as connecting a DN15 water pipe to a DN20 water pipe, the pipe fitting bushing can play a big role.

If the DN15 water pipe is an external threaded pipe, it can be connected to the inner thread end of the pipe fitting bushing, and if the DN20 water pipe is an internal threaded pipe, it can be connected to the outer thread end of the pipe fitting bushing; if the DN20 water pipe is an external threaded pipe, it can also be connected to the pipe fitting bushing by connecting an internal threaded joint. In addition, through the threaded connection, the pipe fitting bushing can be easily connected to various water appliances and valves, making it widely used in pipeline installation in many fields such as industry and life.

2. Application scenarios of pipe fittings-pipe fitting bushing

(I) Involved industries

As an important pipeline connection part, the pipe fitting bushing is widely used in many industries. It is widely used in large-scale domestic power station supporting projects, playing a key role in the construction of complex pipeline systems in power stations, and ensuring that various energy media can be smoothly transmitted in pipelines of different diameters.

It is also very common in various projects involving fluid transportation, such as seawater, steam, cold water, hot water, oxygen, drinking water, refrigeration, oil, gas, medical gas sewage treatment projects, etc. For example, in a desalination plant, seawater needs to be transported through pipes of different diameters. The core plug can help achieve a reasonable conversion of pipe diameters. In the medical gas delivery system of a hospital, different areas have different gas flow requirements and pipe diameters. The core plug can smoothly connect the pipes to ensure a stable supply of medical gas.

At the same time, the municipal engineering field is also a "place for core plugs". In the laying of urban water supply, gas supply and other pipeline networks, pipe diameter changes are often encountered. Core plugs are involved in this to ensure the integrity of the municipal pipeline system. Moreover, core plugs are indispensable in industries such as chemical, oil refining, metallurgy, fertilizer, papermaking, and medicine. For example, in chemical production, the pipe diameters of different processes are different. It can help connect pipes of different diameters, so that various chemical raw materials and products can be safely and efficiently transported and circulated to meet the needs of the entire production process.

(II) Usage

In actual pipeline installation scenarios, when water pipes need to change diameters, core plugs will come in handy. For example, when we want to reduce the diameter of a DN15 water pipe to a DN20 water pipe, there are many connection situations. If the DN15 water pipe is an external threaded pipe, it can be connected to the end of the inner thread of the pipe fitting bushing; if the DN20 water pipe is an internal threaded pipe, it can be connected to the end of the outer thread of the pipe fitting bushing; if the DN20 water pipe is an external threaded pipe, it can also be connected to the pipe fitting bushing by connecting an internal threaded joint.

The pipe fitting bushing has a unique advantage through threaded connection. It can be easily connected to various water appliances and valves. For example, in the kitchen or bathroom of a home, when water appliances such as faucets and angle valves are connected to water pipes of different diameters, the pipe fitting bushing can act as a "bridge", making the installation process more convenient, and it is also relatively stable after connection, ensuring the normal transportation of water, and will not easily cause leakage and other problems. This also makes it widely used in pipeline installation in many fields such as industry and life.

3. What are the types of pipe pipe fitting bushings?

(I) Classification by material

There are many types of pipe fitting bushings according to different materials, the most common ones are zinc alloy reducers, copper nickel-plated pipe fitting bushings and 304 stainless steel reducers.

Zinc alloy reducers are generally made by die-casting and other processes. Their surfaces are often treated by electroplating zinc, electroplating nickel and chromium. They have beautiful appearance and tight structure, high strength, good sealing, shockproof, corrosion-resistant, waterproof and dustproof. The size can be flexibly changed according to the actual needs of equipment, boxes, steel pipes, hose diameters and threads. They are widely used in some ordinary pipeline connection scenarios where the requirements for corrosion resistance are not particularly extreme.

Copper nickel-plated pipe fitting bushings, copper itself has good ductility and conductivity, and after nickel plating, its corrosion resistance is further enhanced, so that it can maintain a good condition in a more complex environment. This kind of pipe fitting bushing is often finely made, with clear threads and no burrs, explosion-proof and leak-proof, and strong pressure resistance. For example, in some pipeline systems involving water and gas transportation, when the connection stability is required to be high, the copper-plated nickel pipe fitting bushing can play an excellent role. It is often used in situations such as the reducer connection of water and heating pipes in the home.

304 stainless steel reducer, 304 stainless steel is one of the most common and widely used stainless steel materials, with excellent corrosion resistance and oxidation resistance. Whether in harsh industrial environments such as high temperature, high humidity or strong acid and alkali, it can maintain stable performance and is not easy to rust.

And it also has high strength and toughness. Even under high pressure or severe vibration, it can be firmly connected and is not easy to deform or damage. Therefore, it is favored in pipeline reducer connections in major industrial fields such as chemical, petroleum, food, and medicine. For example, it is often used in the connection of chemical raw material transportation pipelines of different diameters in chemical production.

(II) Introduction to common specifications

The pipe fitting bushing has a variety of specifications to meet the needs of different pipeline connection scenarios. Common specifications include 4-inch to 6-inch brass pipe fitting bushings, 6-inch to 1-inch stainless steel pipe fitting bushings, 4-inch to 1-inch pipe fitting bushings, M32-M20 stainless steel reducers, M40-M32 brass adapters, M25-M20 stainless steel pipe fitting bushings, G1-M20 stainless steel reducers, G3/4-1/2 NPT brass male and female joints, G1-3/4NPT stainless steel transition joints, etc.

For example, in the installation of indoor water pipes in a home, if the main pipe is a 6-inch pipe diameter, and the branch water pipe to be connected to a certain water-using equipment is a 4-inch pipe diameter, then a 4-inch to 6-inch brass pipe fitting bushing can be used to achieve the pipe diameter conversion connection.

In some industrial plants, if a large-diameter main pipe needs to be connected to a relatively smaller-diameter branch pipe, such as when connecting an M32 pipe to an M20 pipe, an M32-M20 stainless steel reducer can come in handy. However, the specific specifications of pipe core fillings to be used still need to be determined comprehensively based on many factors such as the actual pipeline installation situation, conveying medium, pressure requirements, etc., so as to ensure the safety, stability and efficiency of the pipeline connection.