Blind Flanges Supplier – Astm A105/a105n, A350 Lf2 Cl1/cl2, A694 F42/f52/f60/f65/f70, A182 F304/304l/316/316l/317l/321/347/904l
| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
|---|---|
| Class | 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 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
Blind Flange Manufacturer in India – Carbon Steel A105/A350 LF2/A694, Stainless Steel A182 F304/316/321/347/904L, Alloy Steel F5/F11/F22/F91, Duplex S31803/S32205, Super Duplex S32750/S32760
Viton Metal And Forging is a renowned Blind Flanges manufacturer in India, specialising 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. We also specialize in lap joint flange gaskets suitable for high-pressure environments.
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. Viton Metal and Forging places a high value on client satisfaction by providing premium Blind Flanges along with timely service and affordable prices.
Blind Flanges – Material Grade Chart
| Material Category | ASTM Standard | Grade / Specification | UNS No. (Where Applicable) | Typical Applications |
|---|---|---|---|---|
| Carbon Steel | ASTM A105 / A105N | A105, A105N | — | General Industrial & Oil & Gas |
| ASTM A350 | LF2 CL1 / CL2 | — | Low Temperature Services | |
| ASTM A694 | F42, F46, F52, F56, F60, F65, F70 | — | High Pressure Pipelines | |
| Stainless Steel | ASTM A182 | F304 / F304L | S30400 / S30403 | Chemical & Food Industry |
| ASTM A182 | F316 / F316L | S31600 / S31603 | Marine & Corrosive Media | |
| ASTM A182 | F317L | S31703 | Acidic Environments | |
| ASTM A182 | F321 | S32100 | High Temperature Service | |
| ASTM A182 | F347 | S34700 | Heat Resistant Applications | |
| ASTM A182 | F904L | N08904 | Severe Corrosion Conditions | |
| Alloy Steel | ASTM A182 | F5 / F9 | — | Refinery & Power Plants |
| ASTM A182 | F11 / F22 | — | High Temperature & Pressure | |
| ASTM A182 | F91 | — | Boiler & Heat Exchanger Systems | |
| Duplex Steel | ASTM A182 | F51 | S31803 / S32205 | Offshore & Marine |
| Super Duplex Steel | ASTM A182 | F53 / F55 | S32750 / S32760 | High Chloride Environments |
| Nickel Alloys | ASTM B564 | Inconel 600 / 625 | N06600 / N06625 | High Heat & Corrosion |
| ASTM B564 | Monel 400 | N04400 | Marine Applications | |
| ASTM B564 | Hastelloy C276 | N10276 | Highly Corrosive Media | |
| Titanium | ASTM B381 | Grade 2 / Grade 5 | R50400 / R56400 | Aerospace & Marine |
Blind Flanges Weight Chart in KG, MM, PDF – Class 300 (RF)
| NPS (Inch) | Outside Diameter (mm) | Thickness (mm) | Approx. Weight (Kg) |
|---|---|---|---|
| ½" | 95 | 16 | 1.2 |
| ¾" | 115 | 19 | 2.1 |
| 1" | 125 | 21 | 2.9 |
| 1½" | 155 | 24 | 5.0 |
| 2" | 165 | 27 | 6.5 |
| 2½" | 190 | 30 | 9.8 |
| 3" | 210 | 32 | 13.0 |
| 4" | 255 | 38 | 23.5 |
| 5" | 280 | 41 | 31.5 |
| 6" | 320 | 46 | 45.0 |
| 8" | 380 | 55 | 75.0 |
| 10" | 445 | 64 | 120.0 |
| 12" | 520 | 70 | 165.0 |
| 14" | 585 | 76 | 230.0 |
| 16" | 650 | 83 | 310.0 |
| 18" | 710 | 89 | 400.0 |
| 20" | 775 | 95 | 520.0 |
| 24" | 915 | 108 | 780.0 |
Type of Sub-products
Raised Face Blind Flange Raised Face Blind Flange
Raised face blind flanges feature a small, protruding area around the bolt circle that concentrates pressure on the gasket surface. This design enhances sealing efficiency and is commonly used in high-pressure and high-temperature applications such as petrochemical plants and refineries. The raised face helps ensure tight, secure closure in critical pipeline systems.
Flat Face Blind Flange Flat Face Blind Flange
Flat face blind flanges have a smooth, even surface across the entire flange face, making them ideal for use with flat face flanged fittings. These are often used in low-pressure systems where alignment and ease of replacement are priorities. They are typically installed in water treatment plants, HVAC systems, and low-stress piping lines.