Flange Sizing Chart and Repair Guide for Industrial Pipeline Maintenance

2026-04-27
grama
2636

Guida al dimensionamento e alla riparazione delle flange

Proper flange sizing and timely repair ensures safe pipeline operation.

Tabella di dimensionamento delle flange

  • NPS 1/2 to NPS 24: Standard range
  • DN15 to DN600: Metric sizes
  • Classe 150-2500: Valori di pressione
  • Custom sizes available

Metodi di riparazione delle flange

  • Face resurfacing for minor damage
  • Bore machining for worn surfaces
  • Bolt hole repair and re-drilling
  • Weld overlay for severe wear

How to Replace Flange

  1. Isolate and drain pipeline
  2. Remove old bolts and gasket
  3. Clean mating surfaces
  4. Install new flange and gasket
  5. Torque bolts to specification
  6. Pressure test before service