INDUSTRY COMPONENT

Flanges

Flanges are mechanical components used to connect pipes, valves, pumps, and other equipment in structural steel channel sections, providing a secure, leak-proof joint.

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Component Specifications

Definition
Flanges are flat, circular discs with evenly spaced bolt holes around their perimeter, designed to be attached to the ends of pipes, valves, or other equipment. In structural steel channel sections, they serve as critical connection points that allow for assembly, disassembly, and maintenance of the structure. They ensure alignment, distribute loads, and prevent leakage by compressing a gasket between mating surfaces when bolts are tightened.
Working Principle
Flanges work by creating a bolted, sealed connection between two mating surfaces. When bolts are tightened through aligned holes, they compress a gasket placed between the flanges, forming a pressure-tight seal. This allows for the transfer of mechanical loads and fluids while maintaining structural integrity and preventing leaks.
Materials
Typically made from carbon steel (e.g., ASTM A105, A350 LF2), stainless steel (e.g., ASTM A182 F304/316), or alloy steel, chosen based on strength, corrosion resistance, and application requirements such as pressure and temperature.
Technical Parameters
  • Diameter 50-600 mm
  • Face Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
  • Thickness 6-40 mm
  • Bolt Circle As per ASME B16.5
  • Pressure Rating 150-2500 PSI
Standards
ISO 7005-1, DIN 2633, ASME B16.5, EN 1092-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Flanges.

flanges steel flanges pipe flanges structural connections industrial components ASME B16.5 flange standards mechanical engineering Flanges in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Structural Steel Channel Section

Hot-rolled steel channel sections for structural frameworks and support systems.

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Vacuum Chamber Body

The main structural enclosure of a vacuum chamber designed to maintain a controlled low-pressure environment.

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Reactor Shell/Vessel

The primary pressure-containing structure of an ammonia oxidation reactor that houses the catalyst bed and reaction zone.

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Engineering Analysis

Risks & Mitigation
  • Improper bolt tightening can lead to leaks or joint failure
  • Material corrosion in harsh environments
  • Misalignment during installation causing stress concentrations
FMEA Triads
Trigger: Incorrect gasket selection or installation
Failure: Leakage at the flange joint
Mitigation: Use appropriate gasket materials and follow torque specifications during assembly
Trigger: Over-tightening of bolts
Failure: Bolt or flange damage, leading to joint failure
Mitigation: Adhere to recommended torque values and use calibrated tools

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances as per ASME B16.5 (e.g., ±0.8 mm for bolt hole spacing)
Test Method
Pressure testing (hydrostatic or pneumatic), visual inspection, dimensional checks, and material certification to ASTM standards

Buyer Feedback

★★★★☆ 4.6 / 5.0 (15 reviews)

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Flanges so far."

"Testing the Flanges now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What are the common types of flanges used in structural steel?

Common types include weld neck, slip-on, blind, socket weld, and lap joint flanges, each suited for different pressure ratings and assembly needs.

How do I select the right flange material?

Select based on application requirements: carbon steel for general use, stainless steel for corrosion resistance, and alloy steel for high-temperature or high-pressure environments.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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