Integral flange
Integral flange

An Integral Flange (IF) is a type of flange connection where the flange is made as a single piece with the pipe or equipment, typically through casting or forging. This design creates a strong, non-detachable joint that is suitable for high-pressure, high-temperature, or corrosive conditions. Materials like carbon steel, stainless steel, or alloy steels are chosen based on application needs, and strict standards ensure reliability and safety.

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Product Parameters

TypeSealing surface typeNominal PressureMaterial QualityStandard
Integral flangeRF

PN2.5~PN400.0

Class150~Class2500


Stainless SteelGB
Carbon SteelDIN
TGAlloy SteelASME
MFM


Product Features

1. Integrated structure

The integral flange is a seamless, one-piece design with the connected equipment or piping, which eliminates the potential weaknesses of welds and connection interfaces.


2. High strength and reliability

Because there are no welded joints, the integral flange has the highest structural integrity and can withstand extremely high pressure and impact loads.


3. High rigidity

The one-piece design gives the flange extremely high rigidity, enabling it to resist deformation under high pressure and temperature changes and maintain excellent sealing performance.


4. Diverse sealing surfaces

Based on different operating conditions, integral flanges can be machined into various sealing surface forms, such as Raised Face (RF), Male-Female Face (MFM), and Tongue-and-Groove Face (T&G).


5. Material

Integral flanges are typically made through forging or casting processes. Various materials, including stainless steel, carbon steel, and alloy steel, can be used to meet the requirements for corrosion resistance and strength under different media and working conditions.


6. High cost

Due to its complex manufacturing process and higher material requirements, the production cost of integral flanges is typically higher than that of other types of flanges.

Product Advantages

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Excellent Sealing Performance

The integrated structure and high rigidity ensure outstanding sealing effectiveness, even under extreme conditions, and effectively prevent leakage.

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Adaptability to Harsh Environments

Highly suitable for critical industrial applications with high pressure, high temperature, flammable, explosive, or stringent sealing requirements.

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Reduced Stress Concentration

Unlike welded flanges, integral flanges have no welded joints, thus avoiding potential stress concentrations and flaws caused by welding.

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Long-Term Stable Operation

The high strength and corrosion resistance ensure long-term, stable, and reliable operation even in harsh environments.

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Easy Maintenance

Despite the high manufacturing cost, its exceptional reliability reduces maintenance needs and costs over the long run.

Product Parameters

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production line

Packaging and transportation

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Application scenario

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