Spectacle Flanges

₹78 - ₹175

Minimum Order : 100 piece

Customization as per requirements


Spectacle Flanges – Specification

Specification Details
Flanges TypesSlip On, Weld Neck, Long Weld Neck, Threaded, Companion, Blind, Lap Joint
Class150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160
Size1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000
TypeRaised Face (rf), Small Tongue, Groove, Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Small Male Female (smf), Large Tongue & Groove, Large Male Female (lmf)

Spectacle Flanges

 



Type of Sub-products

  • Standard Spectacle Flange
    Standard Spectacle Flange

    Standard Spectacle Flange

    The most common design: two discs (one solid, one open) joined by a tie bar. By rotating, operators can quickly switch between flow and isolation without removing the assembly from the line.

  • Beveled Spectacle Flange
    Beveled Spectacle Flange

    Beveled Spectacle Flange

    Machined with a beveled sealing edge to improve gasket seating and provide a tighter seal under high pressure or high temperature conditions.

  • Spectacle Blind With Lifting Eye
    Spectacle Blind With Lifting Eye

    Spectacle Blind With Lifting Eye

    Equipped with a welded lifting lug or eye for safe handling of larger, heavier units during installation or rotation in industrial facilities.


Frequently Asked Questions

Where are Spectacle Flanges commonly used?

They are widely used in process pipelines that require regular isolation for inspection, hydro testing, or repairs. Industries such as petrochemicals, power generation, offshore drilling, LNG terminals, and pulp & paper favor spectacle flanges because they allow quick line blanking without full disassembly. They’re also installed at strategic shutdown points in plants to meet OSHA or API safety requirements.

What standards govern Spectacle Flanges?

Spectacle Flanges are primarily manufactured to ASME B16.48 (Line Blanks), which covers dimensions, tolerances, pressure ratings, and marking. Projects in Europe may also specify EN 1092 1 or DIN standards. Compliance ensures interchangeability, reliable sealing, and global acceptance in regulated industries.

What materials are available for Spectacle Flanges?

Common grades include carbon steel (A105), stainless steel (304, 304L, 316, 316L), low temperature steel (A350 LF2), duplex & super duplex, and high nickel alloys (Inconel, Hastelloy). Material choice depends on fluid type, operating temperature, and corrosion potential. Exotic alloys are often specified for offshore or sour service conditions to meet NACE MR0175 requirements.


Countries We Export – Spectacle Flanges

  • India

Cities We Supply – Spectacle Flanges

  • Mumbai
  • Lucknow
  • Nashik
  • Pune
  • Rajkot
  • Moradabad
  • Angul
  • Rudrapur
  • Hosdurg
  • Gandhinagar
  • Rajahmundry
  • Durgapur
  • Bharuch
  • Panipat

Industries We Serve – Spectacle Flanges

  • Sugar industry

    Sugar

  • Oil And Gas Industries industry

    Oil And Gas Industries

  • Paper Mill industry

    Paper Mill

  • Power Plant industry

    Power Plant

  • Bridge And Building industry

    Bridge And Building

  • Aerospace Industries industry

    Aerospace Industries

  • Automobile Industry industry

    Automobile Industry

  • Electrical Industry industry

    Electrical Industry

  • Defense Industry industry

    Defense Industry

  • Construction & Fabrications industry

    Construction & Fabrications

  • Ring Man Units industry

    Ring Man Units

  • Railways industry

    Railways

  • Gasket Industry industry

    Gasket Industry

  • Pharmaceuticals Industry industry

    Pharmaceuticals Industry