Flanges
Blind Flange
Blind flanges to ASME B16.5, ASME B16.47, BS 4504 and EN 1092-1, 1/2″ to 48″, with tables for MS, carbon, stainless and Cr-Mo grades.
Specification
At a glance
- Dimensional standard
- ASME B16.5 · ASME B16.47 · BS 4504 · EN 1092-1 Type 05 · DIN 2527
- Size range
- 1/2″ – 48″ (15 – 1200 NB)
- Types & ends
- Plain blind · High hub blind · Tapped blind
- Grades
- Mild SteelIS 2062 Gr. A
- Carbon SteelASTM A105N
- Stainless SteelASTM A182 F304 / F304L / F316 / F316L
- Alloy SteelASTM A182 F11 / F22 / F91
- Also offered in
- Carbon steel ASTM A105
- Stainless steel 304/304L, 316/316L, 904L
- Hastelloy C22, Duplex 2205, Copper-nickel
- Galvanized steel, MS
Dimension tables
8 classes · dimensions, weights, Excel
Mild Steel
Stainless Steel
Alloy Steel
As published by Fortune Fittings Private Limited. Grade and availability are confirmed with each enquiry; confirm the governing standard, size and grade when ordering. Spotted a mistake? Please contact us.
Overview
Product overview
Our comprehensive range includes ASME B16.5 and ASME B16.47 Blind Flanges, available in various types and materials to meet diverse industrial needs.
Understanding Blind Flanges
Blind Flanges are designed to close off the ends of piping systems, ensuring a leak-proof seal while allowing for future access. They come in several types, including high hub blind flanges, tapped blind flanges, and groove blind flanges. Manufactured to standards such as ASME B16.5, DIN 2527, and EN 1092-1 Type 05, our Blind Flanges guarantee reliability and compliance with industry specifications.
Conclusion
In conclusion, Blind Flanges are crucial for sealing piping system ends and ensuring system integrity. At Fortune Fittings Private Limited, we are committed to providing high-quality Blind Flanges that meet the diverse needs of various industries.
Where it is used
Applications and service
Typical duty across the process industries we supply.
- Blind Flanges are widely used across industries such as oil and gas, petrochemicals, and power generation.
- They are essential in scenarios where the end of a pipe needs to be securely closed while maintaining the option for future system modifications.
Engineering
Technical notes
How the component behaves in the line, and the details to settle before an order is placed.
How it behaves in the line
- The flat-plate design results in higher bending stress at centre: wall thickness is greater than equivalent pipe
- Available in all standard pressure classes (BS-10 Table D, ASME B16.5 Class 150–2500)
- Can be drilled and tapped for instrumentation connections
- Maximum unsupported span is limited: check ASME B31.3 Appendix E or equivalent
Confirm when ordering
- For future connections: specify drilling pattern on blind face in advance
- Confirm gasket type matches mating flange facing (FF vs RF)
Dimensions, wall thicknesses and pressure classes are in the dimension tables; the governing standards are summarised on the standards reference.
Characteristics
What defines the range
- Our Blind Flanges are crafted from robust materials like A105 carbon steel and stainless steel grades, providing high strength and durability.
- Available in various classes, such as Class 300, Class 600, and AWWA Class B, our Blind Flanges cater to high-pressure applications and diverse industrial environments.
- At Fortune Fittings Private Limited, we prioritize quality and customer satisfaction.
- We maintain a ready inventory of Blind Flanges in various sizes and specifications to promptly meet our clients’ needs.
Related
Specified alongside this
Components that commonly appear with it on the same run, and the rest of the flanges range.
Used on the same lineRing SpacerRing spacers to ASME B16.48 that increase the distance between two flanges where extra space is needed in a piping system.View specifications
Used on the same lineWeld Neck FlangeWeld neck flanges to ASME B16.5, ASME B16.47 and EN 1092, including long weld neck, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Used on the same lineSlip-On FlangeSlip-on flanges to ASME B16.5 and EN 1092-1, flat or raised face, with dimension tables for mild, carbon and stainless steel.View specifications
Same rangeSocket Weld FlangeSocket weld flanges to ASME B16.5 and BS 4504 for small-bore, high-pressure lines, in stainless and carbon steel, with Class 150 tables.View specifications
Same rangeThreaded FlangeThreaded flanges to ASME B16.5 with NPT or BSP threads for low-pressure lines where welding is not wanted, with Class 150 tables.View specifications
Same rangeLap Joint FlangeLap joint flanges to ASME B16.5, EN 1092-1 and DIN 2642, used with a stub end, Class 150 to 600, with Class 150 dimension tables.View specifications
Where it is specified
Industries using this component
Sectors that commonly specify the Blind Flange, and what else they take from us.
Enquiries
Need a quotation for the Blind Flange?
Send sizes, grades, quantities and the standard the component is specified to, and a sales engineer will come back with availability and pricing. Dimensions and schedules are in the Technical Catalog.