Kyoga Flanges is a trusted manufacturer and supplier of Alloy Steel Spectacle Flanges, based in Bedok, Singapore. We are committed to delivering precision-engineered flanges that meet international quality standards and demanding industry requirements. Our spectacle flanges are manufactured using high-grade alloy steel, ensuring excellent strength, durability, and reliable performance in high-pressure and high-temperature environments. Designed for safe line isolation and flow control, these flanges provide dependable operation in critical piping systems. With a focus on consistent quality, timely delivery, and customer satisfaction, Kyoga Flanges serves oil & gas, petrochemical, power generation, and heavy engineering industries.
Alloy Steel Spectacle Flanges are composed of a combination of carbon steel and alloying elements such as chromium, molybdenum, and nickel, which enhance their strength, toughness, and corrosion resistance. Mechanically, they offer high tensile strength, excellent resistance to high-pressure and high-temperature environments, and durability under harsh conditions. The advantages of these flanges include their ability to isolate piping systems for maintenance, durability, and long-lasting performance in extreme conditions. They are widely used in industries like oil and gas, chemical, and power generation, ensuring safety and efficiency in critical applications.
| Specification | ASTM A182 / ASME SA182 |
|---|---|
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Standards | ANSI/ASME B16.48, B16.47 Series A & B, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.48/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production Technique | Forged, Heat treated and machined |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.18, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A182 f9 Alloy Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Alloy Steel f1, f5, f91, f11, f9, f22 |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Kyoga Flanges, a leading supplier in Bedok, Bedok, offers an extensive selection of Alloy Steel Spectacle Flanges , including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
Alloy Steel Spectacle Flanges are widely used in piping systems where periodic isolation or flow diversion is required for maintenance and safety. They are commonly applied in oil and gas refineries, petrochemical plants, power stations, and chemical processing industries. These flanges are ideal for high-pressure pipelines, steam lines, and process systems handling aggressive fluids. Their robust construction and easy identification make them essential for ensuring operational safety, efficient maintenance, and leak-free isolation.
Yes, we offer custom sizes for Alloy Steel Spectacle Flanges to meet specific project needs. Our team at Kyoga Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@www.kyogaflanges.com.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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