E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
Dec. 06, 2024
Flange joints are a type of mechanical connector that connects pipes of different materials or sizes to equipment with flanges (such as pumps, valves or other pipe components), helping to convert flangeless flat-end pipes into flange components. This type of fitting is widely used in water, gas, oil and sewage pipe systems.
Main features:
1. Connection diversity
Flange joints can directly connect a variety of different types of pipes, such as PVC pipes, ductile iron pipes and steel pipes. This feature is of great advantage when upgrading pipes or integrating systems with different standards or materials.
2. Sealing performance
Most flange joints are equipped with sealing devices (usually gaskets) to ensure that the connection between the flange and the pipe is well sealed and prevents leakage.
3. Flexibility
They generally have a certain degree of axial mobility, which helps to adjust the alignment of the pipe or adapt to the thermal expansion caused by temperature changes inside the pipe.
4. Ease of installation
When flange joints establish flange connections, there is no need for welding or threading operations, which simplifies the installation process.
Uses:
In water and sewage systems, flange joints are often used to assemble pipes in water distribution and sewage networks.
In the oil and gas sector, it is also an indispensable component in the installation of oil and gas pipelines to connect pipes to flange valves or pumps.
In HVAC (heating, ventilation and air conditioning) networks, flange joints can be used to connect pipes to equipment such as heat exchangers and pumps.
Types of flange joints:
1. Slip-on flange joint
This joint is installed at the end of the pipe and is usually fixed by welding.
2. Bolted flange joint
It is connected with bolts and usually includes a gasket for sealing.
3. Flexible flange joint
This type of joint allows a certain degree of movement, which is beneficial when the pipe expands, contracts or vibrates.
Engineers use flange joints to improve the efficiency of pipeline assembly and maintenance, especially when mixed pipe materials or old infrastructure are involved.
Latest News
Industry News
Dec. 22, 2025
Why are elbows made of stainless steel?
Stainless steel stamped elbows are suitable for pipeline systems in petroleum, chemical, hydropower, natural gas, construction, and steam storage tank industries because they can be used directly as raw materials without the need for blanks. Large-diameter thin-walled carbon steel elbows can serve as low-cost pipe-making equipment and molds. By shortening the production cycle, production management costs can be significantly reduced. Especially for large steel elbows, the blank surface is smooth, with good ductility, and the stamping process is simple, precise, easy to operate, and assembly and welding processes are also very convenient. Stainless steel elbo
Industry News
Dec. 19, 2025
45° short radius elbow and long radius elbow
45° short radius elbow and long radius elbow
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Methods for selecting appropriate stainless steel elbows based on operating conditions
The selection of stainless steel elbows is largely influenced by operating conditions. Here are some methods for selecting suitable stainless steel elbows based on operating conditions:
Authentic is here to help you find the right pipe fittings and flanges for your specific needs.
FAQ
What certifications do your products have?
Our products comply with international standards such as ASTM, ANSI, JIS, DIN, and GB. We also hold various certifications to assure quality and reliability, including ISO 9001.
How can I get some samples?
If you need, we will offer you samples for free, but new customers are expected to pay express charge.
To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru, USA, Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.)
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Our team at Authentic is here to help you find the right pipe fittings and flanges for your specific needs.
You Can Contact Us in the Following Ways
authentic013@steelpipes-fitting.com
+86 13668807131
Donghe Industrial Zone, Mengcun County, Cangzhou City, Hebei Province
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