Blind flanges, or blanking flanges or blind plates, are the most common type of pipe flange used in the piping industry. They are used to seal a pipeline's end or temporarily close a connection. Blind flanges are usually manufactured from carbon steel, stainless steel, and alloy steel. Blind flanges are versatile and can be used in various applications across multiple industries.

Blind flanges come in various types and are classified based on their design and functionality. The two primary types of blind flanges are raised-face blind flanges and flat-face blind flanges. Raised face blind flanges are designed with a raised surface that provides additional sealing surface area. This type of flange is commonly used in high-pressure applications. A flat-face blind flange is designed to have a flat surface, making it suitable for low-pressure applications.

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Blind flanges are regularly utilized when pipe termination or pressure test is needed. They can be used in many different pipeline systems in the chemical, petrochemical, oil and gas, and water treatment industries. Additionally, they are suitable for use in fire sprinkler piping systems where significant water pressure may occur unexpectedly. Blind flanges are also commonly used in offshore oil and gas sub-sea pipelines in the tie-in and tie-out sections.

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Blind flanges seal off a pipeline and provide a temporary seal during maintenance, inspection, or repair. Flanges can also be used as a test port to connect a pressure gauge or other test equipment. With the addition of a bleed ring, they can be used to inject chemicals into the pipelines.

Blind flanges are crucial in the piping industry as they allow quick and easy pipeline maintenance, inspection, or repair without shutting down the entire system. Additionally, they can serve as a cost-effective pressure testing solution without requiring additional components. They are versatile, easy to use, and can be customized to meet specific requirements. Blind flanges are suitable for various process industries and can withstand various temperature and pressure ratings, making them highly efficient.

Blind flanges are essential to piping systems used in several industries worldwide. They are versatile, easy to use, and can be customized to meet different requirements. The different types of blind flanges available make them ideal for a vast range of applications. Some of the key benefits of blind flanges include their ability to support pipeline maintenance and pressure testing without additional components.

Stainless Steel Flange
Monel Flange
Hastelloy flange

Blind Flanges Specification

Standard ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Size 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ).
Class/Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Origin West Europe / Japan / Indian / USA / Korean
Types of Flanges Threaded / Screwed / Forged
Coating Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Test Of Flange Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine.
Production technique Used Heat treated, Forged and Machined
Equipment Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

Blind Flange Price List

Price List of Blind Flanges Blind Flange Price in India (INR) Blind Flanges Price in USD Blind Flanges Price in UAE (Dirham)
Blind Threaded Flanges Price ₹ 1560 $ 19.62 USD 49.60 AED
Blind Flange Price Pis ₹ 1200 $ 16.69 USD 47.02 AED
Blind Flanges Price ₹ 1500 $ 19.24 USD 22.50 AED
Blind Flange Price ₹ 1620 $ 13.59 USD 53.52 AED
Blind Raised Face Blind Flange ₹ 1770 $ 16.53 USD 38.17 AED
Blind Flange Price List India ₹ 1850 $ 29.50 USD 178.00 AED
Blind Flanges Price List ₹ 1970 $ 27.60 USD 76.50 AED
Price of Blind Flanges ₹ 1540 $ 14.78 USD 62.50 AED

Blind Flanges Technical Data Sheet

Blind Flanges Manufacturing Process

manufacturing process

Blind Flanges Available In Following Materials

Stainless Steel Blind Flanges

Stainless Steel Blind Flanges

Alloy Steel Blind Flanges

Alloy Steel Blind Flanges

Carbon Steel Blind Flanges

Carbon Steel Blind Flanges

Duplex Steel Blind Flanges

Duplex Steel Blind Flanges

Super Duplex Steel Blind Flanges

Super Duplex Steel Blind Flanges

Nickel Alloy Blind Flanges

Nickel Alloy Blind Flanges

Other Type Blind Flanges

  • JIS B2220 5K Blind Flange
  • Titanium Blind Flange Manufacturer in Mumbai
  • 150 LBS Blind Flanges
  • ANSI B16.47 Series A Blind Flanges
  • Monel Blind Flanges Dimensions
  • EN 1092-1 Type 01 Blind Flanges
  • Super Duplex Steel Flanges Manufacturer
  • Steel Blind Flanges Suppliers in India
  • GOST 12820-80 Blind Flanges
  • BS 10 Table D Blind Flanges
  • 600 LBS Blind Flanges
  • Blind Flat Flange
  • 900 LBS Blind Flanges
  • 1500 LBS Blind Flanges
  • MSS SP-44 Blind Flanges
  • Alloy 20 Blind Flanges Suppliers in Mumbai
  • ASME B16.5 Blind Flange Price List
  • ASME B16.5 Blind Pipe Flange
  • SDSS Blind Manufacturers in India
  • Titanium Blind Flanges Supplier
  • Copper Nickel Blind Flanges Flanges
  • Alloy Steel Flat Face Blind Flanges
  • Low Temperature Carbon steel Blind Flanges
  • High Quality BLRF Flanges Suppliers in India
  • Hastelloy Flat Faced Blind Flanges Stockist
  • 254 SMO Raised Face Blind Flange
  • Carbon Steel Ring Type Joint Blind Flanges
  • Incoloy Flat Face Blind Flanges
  • ANSI B 16.5 CLASS 300 BLFF Blind Flange
  • Price list of Blind Pipe Flanges

Blind Flanges Industrial Application