Steel Flanges – Triveniforge


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We manufacturers standard range of Steel Flanges as per the national and international standards. We can also manufacture as per the customer’s requirement.

Production Range:

  • Flanges weld neck, socket weld, blind, slip on and reducing type to ANSI B 16.5 from 1/2″ to 24″ and classes150 to 2500 (complete range)
  • Flanges from 26″ to 60″ and classes 150 to 900 lbs (in accordance with B16.47 series A&B, MSS SP 44 standard)
  • Flanges long welding neck from class 150 to 1500 lbs and sizes from 1/2″ to 24″
  • Flanges 26″ to 48″ and class 150 to 600 lbs to BS3293
  • Flanges to API 605/ASME B16.47
  • AWWA and light type
  • Spectacle Blind/Figure 8 Blank according to API 590/ASME B16.48
  • Flanges to API 6A std for well head equipment
  • Flanges of special type made according to drawing

These flanges are manufactured in different shapes and sizes depending upon the purpose.


Blind Flanges:

  • These are usually used to stop one end of the flanged pipe, a valve orifice or the opening of a pressure vessel.

Slip on Flanges

  • Used in quick assembly to save the cost, these are also used in less strict requirements in terms of length of pipe section.

Socket Welding Flanges:

  • Recommended for orifice flanges. These work as substitute for slip-on-flanges in the cases where the diameter of the tube is very small and working pressure is very high.

Lap joint Flanges:

  • These are primarily used when quick assembly and disassembly of pipe line section is required under limited working pressure.

Threaded Flanges:

  • These flanges are used in special requirements to work under high temperature and pressure, making sure no welding joint is made at the assembly.

Weld Neck Flanges:

  • These are mainly used on heat coupling of pipes when there is possibility of expansion of the section while bending stress on the coupling.

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