Nakamura Stainless, located in Pulau Ujong, Singapore, is a top manufacturer and supplier of high-quality stainless steel flanges and fittings. Among its main offerings, Stainless Steel Blind Flanges are designed to seal off the ends of piping systems or vessels where future expansion or inspection is needed. Made to meet global standards, these flanges provide strong support, hold pressure well, and resist corrosion. Nakamura Stainless ensures every blind flange is precisely machined and tested for quality, making them suitable for critical industries like oil and gas, petrochemical, power generation, and water treatment.
Stainless Steel Blind Flanges are typically made from SS 304, SS 316, or 904L. They contain 18–20% chromium, 8–14% nickel, and in some grades, 2–3% molybdenum for better corrosion resistance. These flanges generally offer tensile strengths ranging from 485 to 620 MPa. Designed without a center bore, they create a tight seal under high pressure. Their solid, corrosion-resistant structure ensures reliable performance in environments with aggressive chemicals, high temperatures, or varying pressure. The material also provides excellent weldability and long-lasting durability for demanding industrial uses.
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings. |
| Pressure Ratings | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Pressure class | 150#, 300#, 600#, 1500# |
| Dimensions and Pressure Ratings for Blind Flanges | MSS- SP-44, BS3293, ANSI, Table D, E, F, & H, BS4504, PN6, 10, 16, 25, 64 BS10, DIN Standards |
| Flange Face Type Manufacturer | Raised Face (RF), Flate Face (FF), Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized. |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
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| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
Blind Flange: -BS, EN, API 6A, ANSI, ASME, DIN, EN1092-1, UNI, JIS/ KS , BS4504, GB, AWWA C207, GOST, PSI
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We provide complete documentation for our Stainless Steel Blind Flanges so that our customers enjoy a seamless experience. Our entire package comprises a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and an NABL-approved lab test report. We also extend providing test certificates such as MTC, PMI Test Certificates, radiography test reports, and Third-Party Inspection Certificates for our Stainless Steel Blind Flanges. All these accreditations confirm that our products are of high quality and hence reliable and satisfying concerning customer demand.
A Stainless Steel Blind Flange is a solid plate used to seal or close pipeline ends, ensuring leak-proof connections.
They are commonly used in chemical processing, power generation, oil and gas, and marine industries for high-pressure and corrosion-resistant applications.
Yes, they are available in various grades, sizes, and finishes and can be customized to meet specific project requirements.
Documents include commercial invoices, packing lists, MTC, PMI Test Certificates, radiography reports, and Third-Party Inspection Certificates to ensure quality assurance.
Stainless Steel Blind Flanges close off the ends of piping systems or pressure vessels, allowing for easy access when future maintenance, pressure testing, or system expansion is necessary. They are widely used in oil refineries, chemical plants, power stations, water treatment facilities, and offshore platforms. These flanges offer a secure, leak-proof seal and work well in systems that handle high-pressure steam, gas, or corrosive fluids. Their strength, resistance to corrosion, and ease of installation make blind flanges a dependable option for ensuring safety and flexibility in complex pipeline systems.
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