What is a Spectacle Blind Flanges?
Spectacle and line blind flanges are similar to a blind flange but different because they fit between two flanges. Spectacle blind gets their name from similarity to pair or eye glasses. Once side of Spectacle Blind Flange is fully closed for complete flow shuts off, whereas the other end is open for full flow. In this setup the blinds can be rotated without having to take the system apart. It also gives visual confirmation if the line is open or close.
A Spectacle Blinds is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. It is different than a valve in that the blind is a permanent or long term isolation device.
Specification of Spectacle Blind Flanges
||Spectacle Blind Flange
||½” (15 NB) to 48″ (1200NB)
||ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820
||150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
||DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
||BS4504 , BS4504, BS1560, BS10
||SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
||As per drawing
||Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
||Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large
||Tongue & Groove, Small Tongue & Groove
|Flange Face Type
||Flat Face (FF), Raise Face (RF), Ring Joint (RJT)
||ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
||No Fumigate or Fumigate Plywood/Wood Pallet or Case
||Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects et
Grade of Spectacle Blind Flanges
- Monel Grade: Monel 400, Monel K500, Monel R-405
- Nickel Grade: Nickel 200, Nickel 201
- Inconel Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
- Incoloy Grade: Incoloy 800, Inconel 800H, 800HT
- Hastalloy Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
- Titanium Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
- Stainless Steel Grade: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
- Carbon Steel Grade: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
- Duplex Steel Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61
- Alloy Steel Grade : ASTM A182 F1, F5, F9, F11, F22, F91
Spectacle Blind Types
- Flat face spectacle blind (FF): similar to a flat face flange the surface of the disc is flat suited for flat face gaskets for low pressure application.
- Raised face spectacle blind (RF): likewise raised face flanges there is an additional thickness on the surface of the disc. This type fits semi metallic gaskets as the spiral wound type.
- Ring joint face spectacle blind (RTJ): a groove is inscribed on the surface of the disc. This type is used in conjunction with ring joint gaskets
Advantages of Spectacle Blind Flanges
- Spectacle flanges require no welding for installation
- Asiamet will manufacture spectacle flanges to your specifications
- Spectacle flanges from Houston’s Asiamet have a wide range of pressure tolerances
Application of Spectacle Blind Flanges
- Oil & Gas and Paper
- Sugar and Oil Mills
- Ports and Railway
- Offshore and Defense
- Breweries and Cement
- Refineries and Fertilizers
- Mining and Construction
- Chemical and Petrochemical
- Shipbuilding and Steel Plant
- Power Plant and Nuclear Power
- Engineering Co. & and Government Org
Types of Spectacle Blind Flanges
|Stainless Steel Spectacle Blind Flange Class 150
||ASME B16.5 Slip on Threaded Flange
|SS Spectacle Blind Flange Class 300
||Carbon Steel Spectacle Blind Flange With 1/2 Npt
|Class 1500 Spectacle Blind Flange
||Alloy Steel Spectacle Blind Flange With Threaded Hole
|Class 600 Spectacle Blind Flange
||Hastelloy Spectacle Blind Flange Weight 150#
|Inconel 625 Spectacle Blind Flange Class 900
||Rtj 1500 Spectacle Blind Flange
|Monel 400 Spectacle Blind Flange Class 2500
||Stainless Steel 316 Spectacle Blind Flange Ring Type Joint
|Hastelloy C276 PN16 Spectacle Blind Flange
||Monel K500 Spectacle Blind Flange Flat Face Wholesaler
|SS 304 Spectacle Blind Flange Importers
||Nickel 200 Spectacle Blind Flange Slip On
|Nickel 201 Spectacle Blind Flange Pn40
||Rtj 900 Spectacle Blind Flange Stockist in India
|Stainless Steel 410 Spectacle Blind Flange Pn 160
||Inconel 600 Spectacle Blind Flange Rtj
|Incoloy 800 Spectacle Blind Flange Pn 64
||ASTM A105 Spectacle Blind Flange Npt
|ASTM A182 SS 304 Spectacle Blind Flange Dn150 Pn16
||Duplex Steel Spectacle Blind Flange Jis 5k
|Din 2527 Spectacle Blind Flange Exporters in Mumbai.
||Jis B2220 Spectacle Blind Flange
|En 1092-1 Spectacle Blind Flange
||Jis 10k Spectacle Blind Flange Suppliers
|Din 2633 Spectacle Blind Flange Manufacturers
||Kf Spectacle Blind Flange
|Din 2576 Spectacle Blind Flange Distributors
||B16.47 Spectacle Blind Flanges
|ASME B16.5 Class 300 Spectacle Blind Flange
||ANSI B16.5 150 Spectacle Blind Flange
Testing of Spectacle Blind Flanges
- Macro test
- Micro test
- Chemical test
- Flaring test
- It is like PMI test
- IGC test and hardness test
- Mechanical test and flattening test
Documents We Provide with Spectacle Blind Flanges
|Documents like QAP
|NABL approved lab test report
|Raw material test report
||Material Traceability report
|Commercial invoice to buyers
||The TC like MTC as per EN 10204/3.1B
||Third-party test report
FAQ’s regarding Spectacle Blind Flanges
- Are you a trading company or a manufacturer?
We are a manufacturer of Spectacle Blind Flanges in India.
- What are you main products?
We manufacture all kinds of elbow, tees, caps, flanges and steel pipes etc. with different materials.
- Do you provide free samples?
Yes, we would provide sample on your request.
- Why should I choose Asiamet as our source for Spectacle Blind Flanges?
We offer best quality product at most competitive price in the industry. You are promised to obtain the best quality, price and service.
- How to ensure the quality?
Mill Test Certificate is provided for all material. If needed, we can also allow third party inspection or buyer’s inspection
- How long is your delivery time for Spectacle Blind Flanges?
Generally it is 5-10 days if the good are in stock. Or it is 15-20 days if the goods are not in stock, it is According to quality
We Export Spectacle Blind Flanges Across the Globe!
- MIDDLE EAST: Saudi Arabia, Iran, Ira, Qatar, Bahrain, Oman, Kuwait, Turkey, Yemen, Syria, Jordan, Cyprus
- AFRICA: Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, the Republic Of Congo, Gabon
- NORTH AMERICA: USA, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark
- EUROPE:Russia, Norway, Germany, France, Italy, UK, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary Albania, Austria, Switzerland, Slovakia Finland, Ireland Croatia, Slovenia, Malta
- ASIA: Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia
- SOUTH AMERICA: Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay
We Sell Spectacle Blind Flanges Across All Major Cities and Industrial Centers in India
Mumbai, Delhi, Bangalore, Hyderabad, Ahmadabad, Chennai, Bhilai, Kochi, Bhavnagar, Siliguri, Visakhapatnam, Jaipur, Ranchi, Kolkata, Pune, Jaipur, Surat, Lucknow, Chandigarh, Bhopal, Patna, Nagpur, Agra, Indore, Kanpur, Varanasi