CrimeaPRESS reports:
A flange is a mechanical connection piece that is used to connect two pipes or piping components. Flanges typically have a flat or raised surface that contains holes for bolts or screws that secure the flange to other components. As a result of connecting the flanges, a tight connection is formed between the two parts of the pipeline.
Flanges are widely used in various industries and areas, such as the oil and gas industry, chemical industry, energy, water supply and others. They are used to connect pipes, valves, pumps, tanks and other components of a piping system.
There are several types of flanges, including the following:
- welded flanges: These flanges are designed to be welded to a pipe or other piping component and have no bolt holes.
- threaded flanges: They have threaded bolt holes and are used to connect two threaded piping components.
- weld flanges: These flanges have a raised surface that is attached to another piping component by welding.
- flat flanges: They have a flat surface and are used to connect two pipes or piping components at right angles.
- connecting flanges: They are used to connect two flanges with different sizes or standards.
Flanges can be made from a variety of materials, including carbon steel, stainless steel, brass, aluminum, titanium, and other alloys, depending on strength, chemical resistance, and other factors.
What materials are flanges made of?
Flanges can be made from a variety of materials depending on strength requirements, corrosion resistance, operating conditions and other factors. Some of the most common materials used to make flanges include the following:
- carbon steel: This material is one of the most common flange materials due to its strength, durability and relative affordability. Carbon steel flanges are suitable for a wide range of applications across a variety of industries.
- stainless steel: stainless steel flange steels are highly corrosion resistant and can be used in environments where resistance to oxidation and aggressive environments is required, such as the chemical and food processing industries.
- brass: Brass flanges are typically used in applications where good corrosion resistance combined with high thermal conductivity is required. They are often used in water supply, air conditioning and other technical systems.
- aluminum: Aluminum flanges have light weight, good corrosion resistance and high thermal conductivity. They are widely used in the aviation and aerospace industries and in cooling systems.
- titanium: Titanium flanges offer high strength with low weight and excellent corrosion resistance, making them suitable for extreme conditions such as corrosive environments and high temperatures.
These are just a few examples of the materials flanges can be made from. The choice of specific material depends on the specific application requirements, operating conditions, cost and other factors
Flange selection criteria
When selecting flanges, there are a number of criteria to consider to help determine the appropriate flange type and material for a particular application. Here are some of them:
- connection type: Determine the type of connection your application requires: welded, threaded, welded or flat connection. The choice depends on the specific operating conditions and installation and maintenance requirements.
- material: Consider the flange material characteristics such as strength, corrosion resistance, thermal conductivity and others. Select a material that suits the operating conditions and requirements of your application.
- pressure and temperature: Consider the operating pressure and temperature of the system for which the flanges are intended. Ensure that the flanges selected can withstand these parameters without deformation or damage.
- standards and specifications: When selecting flanges, look for compliance with standards and specifications such as ANSI, ASME, DIN, EN and others. Also take into account the sizes, shapes and other parameters defined by the standards.
- flange class: Determine the required flange class according to the pressure and operating conditions of the system. The class of flanges indicates the range of pressures they can withstand without damage.
- Wednesday: Consider the characteristics of the operating environment in which the flanges will be used, such as the presence of aggressive chemicals, humidity, corrosion and other aspects.
- tightness requirements: Depending on the sealing requirements of the system, select flanges with appropriate seals and sealing materials.
- budget: Consider budget constraints and choose flanges that fit your budget without sacrificing quality and safety.
By considering these criteria, the most suitable flanges for a particular application can be selected, ensuring reliable and safe system operation.
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