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Blind Flanges

Complete Pipeline Closure & System Isolation Solutions

Blind flanges are solid disk flanges without a center bore, designed to close off the end of a piping system, valve, or pressure vessel nozzle. They provide a convenient method for closing off piping that may need to be opened again in the future, allowing for easy inspection, cleaning, or modification without having to cut and re-weld pipe sections. Blind flanges are essential components in any complete piping system.

These flanges are commonly used for pressure testing, future expansion points, and temporary or permanent pipeline termination. The solid construction allows them to withstand the same pressure ratings as other flanges in the system, making them suitable for both high-pressure and high-temperature applications. They are available in all standard pressure classes and materials to match existing piping specifications.

Key Advantages

  • Complete pipeline closure
  • Pressure testing capability
  • Easy inspection access
  • Future expansion ready
  • Full pressure rating
  • No flow restriction when removed
Size Range
1/2" - 120"
Pressure Class
150# - 2500#
Temperature
-196°C to 593°C
Standards
ASME B16.5/47
Materials
CS / SS / Alloy
Facings
RF / FF / RTJ

Manufacturing Process & Applications

Complete Manufacturing Process
Quality Control Process
Real-World Applications
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