Harsh Metalloys, Mumbai, India, is a reliable manufacturer and supplier of premium-quality stainless steel spectacle blind flanges. Designed to be strong, accurate, and safe, our spectacle blind flanges are employed to seal or shut off parts of a piping system while maintaining or inspecting it. As per international specifications, they provide leak-tight sealing and enduring performance for high-pressure and corrosive conditions. Harsh Metalloys offers a vast array of spectacle blind flanges in an assortment of sizes, pressure classes, and stainless steel grades to support industries including oil & gas, petrochemical, power, and marine with consistent flow-control solutions.
Harsh Metalloys’s stainless steel spectacle blind flanges are generally produced using grades like 304, 304L, 316, and 316L. These alloys have chromium (18–20%), nickel (8–12%), and molybdenum (2–3% in 316/316L), and they offer superior resistance to corrosion and oxidation. The mechanical properties involve a tensile strength of 485–620 MPa, high ductility, and stress resistance. Spectacle design is a solid plate (blind) and an open ring, joined together by a web or hinge, so one can easily change between open and closed positions without removing the flange fully from the pipeline.
| Size | 1/2″ to 48″ |
| Standards | MSS SP44, ASA, ANSI B16.47 Series A & B, ANSI B16.5, API-605, AWWA, Custom Drawings. |
| Pressure Ratings | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Pressure class | 150#, 300#, 600#, 1500# |
| Dimensions | BS3293, Table D, E, F, & H, ANSI, PN6, 10, 16, 25, 64 BS10, BS4504, MSS- SP-44, DIN Standards |
| Flange Face Type Manufacturer | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Oil Black Paint, Yellow Transparent, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized. |
| Test | Hydrostatic testing machine, X-ray detector, Direct-reading Spectrograph, UI trasonic flaw detector, Magnetic particle detector |
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Contact us to get a quick quote for your requirement.
When selecting a stainless steel spectacle blind flange, consider factors such as pressure rating, temperature resistance, corrosion resistance, and compatibility with the system’s fluid and mechanical conditions. Additionally, ensure the flange material aligns with the specific environmental and industrial requirements.
Yes, you can order Stainless Steel Spectacle Blind Flange in custom sizes and polishes to meet your specific requirements. For more details, mail us at sales@www.harshmetalloys.com
Stainless Steel Spectacle Blind Flanges typically do not require corrosion protection coatings due to their inherent corrosion resistance. However, in highly corrosive environments, additional coatings may be applied for enhanced protection.
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