Spectacle Blind Flanges

Name : Spectacle Blind Flanges

Use :

Spectacle Blind Flanges by Tirupati Enterprises

Tirupati Enterprises is a trusted manufacturer, exporter, and supplier of Spectacle Blind Flanges and Stainless Steel Flanges (Grades 304, 304L, 316, 316L). We offer these flanges in various grades, materials, and finishes, available in both metric and inch sizes.

Our Spectacle Blind Flanges are manufactured in a range of materials, including:

  • Carbon Steel Spectacle Blind Flanges
  • Stainless Steel Spectacle Blind Flanges
  • Alloy Steel Spectacle Blind Flanges
  • Duplex Steel Spectacle Blind Flanges
  • Inconel, Monel, Hastelloy, and Copper-Nickel Spectacle Blind Flanges

All our Spectacle Blind Flanges conform to Slip-On specifications and meet industry standards in India & Asia.

What is a Spectacle Blind Flange?

A Spectacle Blind Flange is a safety device used to isolate a pipeline or equipment during maintenance, inspection, or shutdowns. Unlike a valve, which can be operated as needed, a spectacle blind serves as a permanent or long-term isolation solution.

Design & Installation

  • Machined from a single metal piece, designed to fit between two pipe flanges.
  • Requires an additional gasket for proper sealing during installation.
  • Bolts may need to be lengthened depending on the piping class and size of the blind flange used.
  • The thickness of the spectacle blind is determined based on pipe size and line pressure to ensure durability and reliability.

Why Choose Tirupati Enterprises?

With years of expertise in manufacturing high-quality flanges, Tirupati Enterprises ensures precision, durability, and global quality compliance in every product. Our Spectacle Blind Flanges are designed to meet the most demanding industrial applications while ensuring safety and efficiency.

Spectacle Flanges, Spectacle Blind Flange Production Range

Spectacle Flanges Range
½” (15 NB) to 48″ (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. Available with NACE MR 01-75

Stainless Steel Spectacle Flanges
Grade : 304, 304L, 304H, 309, 310, 310S, 316, 316Ti, 316 L, 317, 317L, 321, 347, 347 H, 409, 410, 410S, 420, 430L

Duplex Steel Spectacle Flanges
Grade : 2205 (UNS No. S31803), 2507 (UNS No. S32750)

Nickel Alloy Spectacle Flanges
Grade : Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II)

Copper Alloy Spectacle Flanges
Grade : UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30) Spectacle Flanges Standard

ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48

DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673

B.S : BS4504 , BS4504, BS1560, BS10

OTHER : PLATE, PLATE BLANK

Specialized Products

Tirupati Enterprises – Leading Manufacturer & Exporter of Stainless Steel Flanges and Fittings

Tirupati Enterprises specializes in the manufacturing and supply of Stainless Steel Flanges, Pipe Fittings, Forged Fittings, Butt Weld Fittings, and other carbon and alloy steel products. Since 1991, we have been delivering high-quality industrial flanges and fittings, catering to global standards such as ASME, ASTM, and API.

Our Extensive Range of Stainless Steel Flanges Includes:
  • SS Slip-On Flange
  • SS Welding Neck Flange
  • SS Blind Flange
  • SS Socket Weld Flange
  • SS Plate Flange
  • SS Collar Flange
  • SS Threaded Flange

We manufacture and export seamless and welded stainless steel flanges to over 60 countries, serving industries across:

Nigeria, Australia, Malaysia, Egypt, South Africa, Kenya, Germany, Turkey, France, the UK, Italy, the Netherlands, Iran, Iraq, Saudi Arabia, UAE, Israel, Jordan, Oman, Kuwait, Qatar, Bahrain, China, Indonesia, South Korea, Pakistan, Singapore, Brazil, Argentina, and the USA.

Global Recognition & Certifications

Tirupati Enterprises is an ISO 9001:2008, ISO 14001, OHSAS 18001 certified company since 2006 and a PED-approved manufacturer since 2008. We are among India's top manufacturers and suppliers of industrial flanges, with approvals from leading global companies, including:

  • Saudi Aramco
  • SABIC
  • Indian Oil
  • BPCL & HPCL
  • NTPC & BARC
  • Indian Navy
Manufacturing Capabilities & Technical Expertise

We manufacture and export pipe flanges ranging from ½” to 200” with pressure ratings of 150 lbs to 3000 lbs, covering a wide spectrum of carbon steel, stainless steel, and alloy steel flanges. Our expertise includes flanges compliant with ANSI, API, MSS, AWWA, DIN, JIS, BS, and GB standards.

Additionally, we specialize in custom ring flanges and precision-engineered forgings as per client specifications. Our production facility ensures stringent quality control, delivering products tailored to petrochemical, chemical, and waterworks industries.

Comprehensive Product Range
  • Weld Neck Flanges
  • Slip-On Flanges
  • Blind Flanges
  • Threaded Flanges
  • Socket Weld Flanges
  • Lap Joint Flanges
  • Orifice Flanges

📏 Sizes: ½” to 198”

Before purchasing ANSI, API, AWWA pipe flanges, compare our prices and experience the superior quality that makes Tirupati Enterprises a global leader in stainless steel and alloy steel manufacturing.