Metal Blind Flange Graphics

Metal Blind Flange

A Metal Blind Flange is a solid flange used to close the end of a piping system, valve, or pressure vessel, providing a leak-proof seal. Unlike standard flanges, blind flanges do not have a bore, making them ideal for terminating pipelines or isolating sections for maintenance and inspection. Manufactured from high-quality metals such as carbon steel, stainless steel, or alloy steel, blind flanges offer excellent strength, corrosion resistance, and the ability to handle high-pressure and high-temperature conditions. They are widely used in chemical processing, petrochemical, oil & gas, water treatment, and power generation industries.

Key Features of Metal Blind Flange

  • Solid Closure Design: Provides a leak-proof seal to terminate pipelines safely.
  • Durable Construction: Made from carbon steel, stainless steel, or alloy steel for long-lasting performance.
  • High Pressure & Temperature Resistance: Suitable for extreme industrial conditions.
  • Corrosion & Abrasion Resistant: Withstands aggressive chemicals, fluids, and environmental exposure.
  • Multiple Sizes & Standards: Available in various diameters, thicknesses, and pressure ratings according to ANSI, ASME, and DIN standards.
  • Easy Installation: Can be bolted to existing flanges using standard flange bolting patterns.

Technical Information

Parameter Details
Material Grades
Carbon Steel (ASTM A105), Stainless Steel (SS304, SS316), Alloy Steel (ASTM A182 F22/F91)
End Connections
Welded or bolted to mating flange
Dimensions & Standards
ANSI/ASME B16.5, B16.47, DIN 2527, ISO 7005
Pressure Rating
Up to 2500 psi (depends on material and flange class)
Temperature Range
-50°C to 450°C (varies with material grade)
Surface Finish
Smooth, flat face for tight sealing and minimal leakage
Applications
Chemical processing, petrochemical, oil & gas, water treatment, power generation, HVAC systems
Design Type
Blind Flange (solid, no bore)
Installation Method
Bolted or welded connection to pipeline flange
Special Features
Provides permanent or temporary pipeline closure; corrosion & abrasion resistant