Spectacle Blind Flange Manufacturer

Best Butt Weld Fittings Manufacturer in India since 1971.

spetacle blind flange

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Spectacle Blind Flanges Manufacturers, Supplier and Exporter in India

ASME B16.48 has two washers, one blind and one annular. They can be mounted in a system in open or closed position. Goggle blind flange manufacturers in India produce different types, such as stainless steel goggle blind flanges or different classes, such as the spec blind. The asme b16.48 spectacle blind flange has the gasket and screw holes in the flat side, so the screws often go through the gasket as well.

The ASME B16.48 is used in maintenance facilities where opening and closing of piping systems is required. The carbon steel spectacle blind flange belongs to the ASME B16.48 class of pipe insulation devices. Depending on the need for an elevated surface, the spectacle blind flanges can be used. On the other hand, if a tight seal is required, the gland blind Figure 8 can be used. These can be rotated to change the position from closed to open and vice versa.

Teshi Group is an ISO certified Spectacle Blind flange manufacturer & distributor in India

Dimensions of Spectacle Blind Flanges

Spectacle Blind Flanges Drawing

Standard Specification For Spectacle Blind Flange

Standard Specifications
ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
1/2" (15 NB) to 48" (1200NB)
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636,DIN 2637, DIN 2638, DIN 2673
BS 4504 , BS 4504, BS 1560, BS 10
PN6, PN10, PN16, PN25, PN40
Flange Face Type
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Material & Grades of Spectacle Blind Flange

Material & Grades
Stainless Steel Spectacle Blind Flange
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Spectacle Blind Flange
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Spectacle Blind Flanges
ASTM / ASME A/SA 105 ASTM / ASME A 350, ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Spectacle Blind Flanges
ASTM A350, LF2, and LF3
Alloy Steel Spectacle Blind Flanges
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel Spectacle Blind Flanges
ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Spectacle Blind Flanges
ASTM SB564, SB160, SB472, SB162 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)

Application Of Spectacle Blind Flange

ANSI B16.5 Class 150 Slip-On Flange uses in Industrial Boilers Industry
ASTM A182 Stainless Steel Slip-On Flange uses in Power Plants Industry
ASME B16.47 Series A and B Slip-On Flange uses in Nuclear Plants Industry
Stainless Steel Slip-On Flange uses in Oil & Gas Industry
Super Duplex Steel Slip-On Flange uses in Refineries Industry
Industrial Slip-On Flange uses in Ship Building Industry
Super Duplex Steel Slip-On Flangea Forged Flange uses in Heat Exchanger Industry
Carbon Steel Industrial Slip-On Flange uses in Condensers Industry
Alloy Steel Industrial Slip-On Flange uses in Paper & Pulp Industry
Duplex Steel Industrial Slip-On Flange uses in Marine Applications
Stainless Steel Industrial Slip-On Flange uses in Nuclear Power Industry
Industrial Slip-On Flangea / Fittings System uses in Fossil Fuel Power Plants Industry

Teshi Group Is A Leading Suppliers Of Spectacle Blind Flanges In India

We supply Spectacle Blind flange to Agra, Ahmedabad, Ajmer, Aligarh, Allahabad, Ambattur, Amravati, Amritsar, Asansol, Aurangabad, Bangalore, Bareilly, Belgaum, Bhavnagar, Bhilai Nagar, Bhiwandi, Bhopal, Bhubaneswar, Bikaner, Chandigarh, Chennai, Coimbatore, Cuttack, Dehradun, Delhi, Dhanbad, Durgapur, Faridabad, Firozabad, Gaya, Ghaziabad, Gorakhpur, Gulbarga, Guntur, Gurgaon, Guwahati, Gwalior, Haora, Hubli and Dharwad, Hyderabad, Indore, Jabalpur, Jaipur, Jalandhar, Jalgaon, Jammu, Jamnagar, Jamshedpur, Jhansi, Jodhpur, Kalyan & Dombivali, Kanpur, Karnataka, Kochi, Kolapur, Kolkata, Kota,  Loni, Lucknow,  Ludhiana, Madurai, Maheshtala, Malegoan, Mangalore, Meerut, Mira, Bhayander, Moradabad, Mumbai, Nagpur,Nanded Waghala, Nashik, Navi Mumbai, Nellore, Noida, Patna, Pimpri & Chinchwad, Pune, Raipur, Rajkot, Ranchi, Saharanpur, Salem, Sangli Miraj Kupwad, Siliguri, Solapur, Srinagar, Surat, Thane, Thiruvananthapuram, Tiruchirappalli, Tirunelveli, Udaipur, Ujjain, Ulhasnagar, Vadodara, Varanasi, Vasai Virar, Vijayawada, Visakhapatnam, Warangal.

Spectacle Blind Flange Exporter to all major cities in the world

We export Spectacle Blind flange to Seoul, Hanoi, Los Angeles, Rio de, Houston, York, Dammam, Al-Khobar, Bogota, Al-Jubail, Chiyoda, Abu Dhabi, Kuwait Santiago, Perth, Busan, London, Jakarta, Surat, Courbevoie, Dallas, Calgary, Mexico Muscat, Aberdeen, City, Edmonton, Riyadh, Caracas, Ahvaz, Brisbane, Moscow, Milan, Manama, Ulsan, Jaya, Granada, Vung Petaling, Melbourne, Montreal, Port-of-Spain, La Victoria, Istanbul, Janeiro, Karachi, New Singapore, Madrid, Lagos, Atyrau, Sydney, Kuala Dubai, City, Bangkok, Toronto, Gimhae-si, Lumpur, Jeddah, Pimpri-Chinchwad, Tehran, Doha, Ho-Chi-Minh-City, Algiers, Tau, Colombo, Ernakulam, Geoje-si, Cairo, Sharjah, Lahore.

Teshi exports Spectacle Blind Flanges in more than 50 countries. We have shipments going out monthly to different countries for our newly acquired customers. Our ready stock of Flanges helps us ship the Flange and meet the requirement and demands of our customers as fast as possible.

We Export Spectacle Blind Flange to United States (USA), Canada, Germany, Japan, France, Middle-East, Bangladesh, Nepal etc.


Dimension Standards

ASME B16.5 & B16.47, AWWA C207, IS 1538, IS 6392, EN 1092, BS-10, BS-4504, DIN-2527, MSS:SP-85 etc.

Frequently Asked Questions

Most frequent questions and answers

What is a spectacle blind flange?

A spectacle blind flange is a type of pipe flange that is used to isolate or blank off a section of pipe. It consists of two pieces: a solid disc that is used to blank off the pipe, and a loose ring that is used to isolate the pipe.

What is the difference between a spectacle blind flange and a regular blind flange?

A regular blind flange is a solid piece of metal that is used to blank off a pipe, while a spectacle blind flange is made up of two pieces: a solid disc and a loose ring. This allows the flange to be used for both isolation and blanking off of a pipe.

How is a spectacle blind flange installed?

A spectacle blind flange is installed by first bolting the flange to the pipe, and then inserting the solid disc into the flange. The loose ring is then placed around the disc, and the bolts are tightened to secure the flange in place.

What materials are spectacle blind flanges typically made of?

Spectacle blind flanges are typically made of carbon steel, stainless steel, or alloy steel, but can also be found in other materials such as aluminum and plastic depending on the application.

What function does a spectacle blind flange serve?

A spectacle blind flange serves two main functions: isolation and blanking off. The solid disc part of the flange is used to blank off a section of pipe, effectively blocking the flow of fluid or gas through that section. The loose ring part of the flange is used to isolate the pipe, separating it from the surrounding environment while still allowing for inspection and maintenance. This combination of functions allows a spectacle blind flange to be used in a variety of industrial settings, such as oil and gas, power generation, and chemical processing.

When is a spectacle blind necessary?

A spectacle blind is a type of pipe fitting that is used to isolate or block off a section of a pipe or vessel. It is typically used in situations where maintenance or repairs need to be performed on a specific section of a pipe or vessel, or where a section of the pipe or vessel needs to be taken out of service temporarily. Spectacle blinds are also used in situations where a pipe or vessel needs to be temporarily isolated for safety reasons, such as during a process shutdown or emergency. They are also used in situations where a pipe or vessel needs to be isolated for cleaning or inspection.


What are the standard sizes for spectacle blind flanges?

The standard sizes for spectacle blind flanges vary depending on the industry and application, but they typically range from 1/2″ to 36″ in diameter.

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