Falcon Valves & Flanges Pvt Ltd

Blind Flanges

We are the renowned Manufacturer, Exporter and Supplier of Blind Flanges. The Blind Flanges are round that have all of the relevant boltholes but no center hole. Due to this feature, Blind Flanges are used to close off the ends of a piping systems and pressure vessel openings. Blind Flanges also permit easy access to the interior of a line or vessel once they have been sealed.


  • Sizes : ½ to 160 and custom made flanges
  • Specifications : ANSI B16.5, ANSI B16.47 series A & B, MSS-SP-44, BS3293, DIN, API6A, ISO, EN 1092,JIS, UNI, AWWA C207 & BS.
  • Ratings : 150# to 2500# (PN6 to PN40)
  • Facings : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Availability (MOC)

  • Carbon steels Blind flanges
    • A105, A266 Cl1 to Cl4
    • A372 Gr.A / Gr.B
    • A350 LF2 Cl1 to Cl3 for low temperature service
    • A516 Gr.60 and Gr.70
    • S45C
    • A738C / S355J2 / 1.0577
  • Alloy steels Blind flanges
    • 42CrMo4 (Q+T) / AISI 4140 / DIN EN 1.7225
    • 25CrMo4 /AISI 4130 / DIN EN 1.7213
    • 34CrNiMo6 /AISI 4340/ DIN EN 1.6582
    • AISI 8660 Tripel Alloy Steel
  • High strength /high yield carbon steels Blind flanges
    • A694 F42, F45, F52, F55, F60, F65, F70
  • Austenitic stainless steels Blind flanges
    • A182 F304 / 304L (UNS S30403), F310 (UNS S31000)
    • A182 F316/316L (UNS S31603), F316Ti, F317/317L (UNS S31703)
    • A182 F321 (UNS S32100), F347 (UNS S34700)
    • A182 F44 (254SMO), 904L (UNS N08904)
    • 17-4 PH, 15-5 PH (SUS 630)
  • Ferritic stainless steels Blind flanges
    • A182 F429, F430, F440A
  • Martensitic stainless steels Blind flanges
    • A182 F6a, A182 F6NM
  • Low alloy steels Blind flanges
    Ferritic alloy steel forgings for high-pressure and high-temperature parts, such as boilers and pressure vessels.
    • A182 / A336 F1, F5, F9, F91, F92
    • A182 / A336 F11, F12, F22, F23
    • A508 Cl.2 / Cl.3
  • Duplex and superduplex Blind flanges
    • A182 F51 (UNS S31803), A182 F60, F53 (UNS S32750)
  • Nickel alloys Blind flanges
    • Alloy 20, Alloy 59, Alloy 400, Alloy 625, Alloy 800/800H/800HT, Alloy 825
    • Titanium Blind flanges

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