Blind Flanges
Riyaarth Overseas specializes in manufacturing top-tier ASME/ANSI/DIN standard blind pipe flanges. We are known for our rapid delivery programs for standard sizes of carbon steel and stainless steel blind flanges. Additionally, we can supply custom blind flanges in specialty stainless steel grades, nickel alloys, and alloy steel to meet urgent project timelines.
Product Overview
Blind flanges, often referred to as blanking flanges, are crucial for sealing the ends of piping systems to prevent the flow of fluids or gases. They are extensively used in high-pressure applications across various industries, including petrochemical plants, oil refineries, power generation facilities, and more.
Specifications and Features
- Sizes Available: From 1/2″ (15 NB) to 48″ (1200NB), accommodating a broad range of piping scenarios.
- Standards: Conforms to ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, with capabilities to meet custom specifications.
- Pressure Ratings: Class 150, Class 300, up to Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
- Materials:
- Carbon Steel: ASTM A105/A105N, A350 LF1, LF2, LF3, A694 F42 to F70.
- Stainless Steel: ASTM A182 F304/304L, F316/316L, F310, F321, F904L.
- Alloy Steel: ASTM A182 F1, F5, F9, F11, F22, F91.
- Special Alloys: Including Duplex, Super Duplex, and various Nickel Alloys.
Customization and Applications
Blind flanges can be customized with or without a hub, and are available with raised or ring-type joint (RTJ) faces to match the needs of your specific applications. They are pivotal in systems requiring periodic maintenance or where pipe ends need to be sealed securely.
Value-Added Services
- CNC Machining: Ensures precise dimensions and fit.
- Coatings: Options include anti-rust paint, zinc plating, and both cold and hot dip galvanizing for enhanced durability and corrosion resistance.
Quality Assurance
Every blind flange undergoes rigorous inspection to ensure it meets global standards. We provide EN 10204 3.1B Test Certificates, 100% Radiography Test Reports, and Third Party Inspection Certificates as required.
Marking and Packaging
Our flanges are meticulously marked with grade, lot number, size, and specifications. They are securely packaged in wooden cases for international delivery, ensuring they arrive in excellent condition.
Contact Us
For expert advice and to order high-quality blind flanges, contact Riyaarth Overseas today. Discover how our reliable solutions can enhance your project’s success and efficiency.
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Industry We Serve
- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry