Blind Flanges Exporter In India – Astm A105, A350 Lf2, A694 F52/f60/f65/f70, A182 F304/304l/316/316l/321/347, F51/f53/f55 Duplex & Super Duplex, Alloy Steel & Carbon Steel Grades
| Flanges Types | Slip On, Lap Joint, Weld Neck, Long Weld Neck, Threaded, Blind, Companion |
|---|---|
| Class | Pn 6, 150 Lbs, 10, 300 Lbs, 16, 25, 600 Lbs, 40, 900 Lbs, 64, 1500 Lbs, 100, 160, 2500 Lbs Asa 150, Asa 300 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Large Male Female (lmf), Small Tongue, Groove, Flat Face (ff), Small Male Female (smf), Ring Type Joint (rtj), Large Tongue & Groove, Lap Joint Face (ljf) |
Blind Flanges Manufacturer in India – Carbon Steel ASTM A105/A350 LF2/A694, Stainless Steel A182 F304/316/321/347/904L, Alloy Steel F5/F9/F11/F22
Metafit Piping Industries is a renowned Blind Flanges manufacturer in India, specializing in high-performance flanges designed for sealing the ends of piping systems. These flanges effectively block flow in pipelines, ensuring safety and efficiency in high-pressure applications. Our Blind Flanges, which are made with premium-grade materials and precision engineering, offer remarkable corrosion resistance and durability, making them appropriate for use in petrochemical, maritime, and oil and gas industries. They provide a safe and leak-proof closure for vital pipeline systems because of their sturdy construction, which does away with the necessity for welding. As a trusted Blind Flanges supplier in India, we offer flanges in various sizes, materials, and pressure ratings to meet diverse industrial requirements. Our flanges undergo extensive testing to ensure their strength and dependability, whether they are used for temporary or permanent sealing. They are made of alloy steel, carbon steel, and stainless steel and are resistant to high pressures and temperatures, guaranteeing long-term performance. We place a high value on client satisfaction by providing premium Blind Flanges along with timely service and affordable prices.
Blind Flanges – Material Grade Table
| Material Category | ASTM Standard | Grade / Specification | Common Applications |
|---|---|---|---|
| Carbon Steel | ASTM A105 / A105N | A105, A105N | Oil & Gas, Refineries, Petrochemical |
| ASTM A350 | LF2 CL1 / CL2 | Low Temperature Services | |
| ASTM A694 | F42, F46, F52, F56, F60, F65, F70 | High Pressure Transmission | |
| Stainless Steel | ASTM A182 | F304, F304L | Food, Chemical Processing |
| ASTM A182 | F316, F316L | Marine, Corrosive Environment | |
| ASTM A182 | F321, F347 | High Temperature Applications | |
| ASTM A182 | F317L, F904L | Severe Corrosion Resistance | |
| Alloy Steel | ASTM A182 | F5, F9 | Power Plants |
| ASTM A182 | F11, F22 | High Temperature & Pressure | |
| ASTM A182 | F91 | Boiler & Heat Exchanger | |
| Duplex Steel | ASTM A182 | F51 (UNS S31803 / S32205) | Offshore & Marine |
| Super Duplex Steel | ASTM A182 | F53 (UNS S32750), F55 (UNS S32760) | High Chloride Environment |
| Nickel Alloy | ASTM B564 | Inconel 600, 625 | High Heat Applications |
| ASTM B564 | Monel 400 | Marine & Chemical | |
| ASTM B564 | Hastelloy C276 | Highly Corrosive Media | |
| Other Materials | ASTM B381 | Titanium Grade 2, Grade 5 | Aerospace & Marine |
Blind Flanges are solid circular plates used to seal the end of piping systems, pressure vessel openings, and valve connections. Designed without a bore, these flanges provide a secure closure that can withstand high pressure and temperature conditions. Manufactured in materials such as carbon steel, stainless steel, alloy steel, duplex, and super duplex steel, they offer excellent strength, corrosion resistance, and durability. Blind flanges are commonly produced in accordance with ASME B16.5 and B16.47 standards and are available in various pressure ratings including Class 150 to 2500, making them suitable for oil & gas, petrochemical, power generation, and marine applications.
As a trusted Blind Flanges Exporter and Blind Flanges Supplier, companies ensure strict quality control, dimensional accuracy, and compliance with international standards. A leading Blind Flanges Exporter in India provides customized solutions in different sizes, grades, and coatings to meet specific industrial requirements. These flanges are widely used for pipeline maintenance, pressure testing, and future system expansion, offering a reliable and cost-effective sealing solution for critical operations.
Blind Flanges Weight Chart in KG, MM, PDF – Class 150 (RF)
| NPS (Inch) | Outside Diameter (mm) | Thickness (mm) | Approx Weight (Kg) |
|---|---|---|---|
| ½" | 90 | 11 | 0.7 |
| ¾" | 100 | 12 | 1.0 |
| 1" | 110 | 13 | 1.4 |
| 1½" | 125 | 14 | 2.0 |
| 2" | 150 | 16 | 3.2 |
| 2½" | 180 | 18 | 5.0 |
| 3" | 190 | 19 | 6.2 |
| 4" | 230 | 24 | 11.0 |
| 5" | 255 | 26 | 15.5 |
| 6" | 280 | 29 | 20.8 |
| 8" | 345 | 35 | 36.5 |
| 10" | 405 | 39 | 58.0 |
| 12" | 485 | 45 | 95.0 |
| 14" | 535 | 48 | 125.0 |
| 16" | 595 | 52 | 170.0 |
| 18" | 635 | 55 | 210.0 |
| 20" | 700 | 58 | 280.0 |
| 24" | 815 | 64 | 420.0 |
The above Blind Flanges weight chart provides approximate weights for ASME B16.5 Class 150 raised face blind flanges across various nominal pipe sizes ranging from ½” to 24”. The weight increases progressively with size due to larger outside diameters and thickness requirements to withstand pressure conditions. These values serve as a general reference for planning, estimation, transportation, and structural load calculations. Actual weights may vary slightly depending on the material grade such as carbon steel, stainless steel, alloy steel, or duplex steel, as well as specific manufacturing tolerances and pressure ratings.
Type of Sub-products
Raised Face Blind Flange Raised Face Blind Flange
Raised Face Blind Flanges feature a slightly elevated sealing surface around the bore, which allows for better gasket compression and improved sealing performance. These are widely used in medium to high-pressure systems where tight sealing is critical. Their design ensures uniform gasket loading, making them suitable for use in chemical processing plants and refineries.
Standard Blind Flange Standard Blind Flange
Standard Blind Flanges are solid discs used to close the end of a pipe or pressure vessel, effectively halting flow. They are essential in systems that require future access for maintenance, pressure testing, or extension. Commonly used in oil & gas, water treatment, and power generation, these flanges provide a secure, leak-proof seal while allowing for easy system isolation.