Rishabh Industries manufactures and supplies Industrial Premium Quality Blind Flanges for securely closing, isolating, and pressure-testing open pipeline ends across demanding industrial applications.
Designed according to recognized international standards, these flanges support reliable piping systems in oil and gas, petrochemical, chemical processing, power generation, water treatment, and general engineering industries.
Our blind flanges are available in a broad range of sizes, pressure classes, materials, face types, surface treatments, and configurations, helping engineers and procurement teams select the right solution for specific piping requirements.
Specifications of Blind Flanges
- Size Range: 1/2″ (15 NB) to 48″ (1200 NB)
- Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, and custom drawings
- Pressure Ratings: Class 150, 300, 400, 600, 900, 1500, 2500; PN6, PN10, PN16, PN25, PN40, PN64 and others
- Face Types: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
- Surface Treatments: Anti-rust paint, oil black paint, yellow transparent coating, zinc plating, cold-dip and hot-dip galvanizing
- Value-Added Services: CNC machining and customized flange manufacturing
Carbon Steel Blind Flanges
Rishabh Industries manufactures carbon steel blind flanges using grades selected for strength,
pressure resistance, and industrial service requirements.
- ASTM A105 / A105N
- ASTM A350 LF1, LF2 Class 1/2, LF3 Class 1/2
- ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
- ASTM A516 Grade 60, 65, 70
- Steel RST37.2
- C22.8
- Spectacle Blind Flanges
- Spacer Ring / Spade Flanges
Stainless Steel Blind Flanges
For applications requiring corrosion resistance and dependable performance, stainless steel blind flanges are available in multiple grades.
- ASTM A182 F202
- F304 / 304L / 304H
- F316 / 316L / 316H
- F316Ti
- F310
- F321
- F904L
Alloy Steel Blind Flanges
Alloy steel options are suitable for piping systems requiring enhanced mechanical and temperature-related performance.
- ASTM A182 F1
- ASTM A182 F5
- ASTM A182 F9
- ASTM A182 F11
- ASTM A182 F22
- ASTM A182 F91
Special Alloy Blind Flanges
Rishabh Industries can supply special alloy blind flange solutions for demanding corrosion-resistant and critical-service applications.
- Duplex Stainless Steel
- Super Duplex Stainless Steel
- Nickel Alloys
- Customized material grades as per technical requirements
Blind Flange Face Types
Selecting the appropriate flange face helps achieve suitable gasket seating and connection performance.
Flat Face (FF)
Flat face blind flanges provide a flat mating surface and are commonly used where the piping system design specifies this configuration.
Raised Face (RF)
Raised face blind flanges provide a raised sealing surface and are widely used in industrial pressure piping applications.
Ring Type Joint (RTJ)
RTJ blind flanges use a precision-machined groove for metal ring gasket installation and are commonly selected for high-pressure or critical-service piping.
Industrial Applications of Blind Flanges
Blind flanges provide a practical method for closing pipeline sections while allowing future access, modification, maintenance, or pressure testing.
- Oil and gas pipelines
- Petrochemical plants
- Chemical processing plants
- Refineries
- Power plants
- Water treatment systems
- Process industries
- Pharmaceutical industries
- Engineering and fabrication projects
- Industrial piping systems
- Pressure testing applications
- Pipeline isolation and maintenance
Why Choose Rishabh Industries for Blind Flanges?
- Wide Size Range: From 1/2″ to 48″ for diverse piping requirements.
- Multiple Pressure Classes: Supports Class 150 through Class 2500 and various PN ratings.
- Material Flexibility: Carbon steel, stainless steel, alloy steel, duplex, super duplex, and nickel alloys.
- Recognized Standards: Manufacturing and supply according to applicable international standards and customer specifications.
- Custom Manufacturing: Customized dimensions and configurations based on approved drawings.
- CNC Machining: Precision machining for applications requiring specific dimensional requirements.
- Surface Protection: Multiple coating and galvanizing options help address storage and service requirements.
- Industrial-Focused Solutions: Suitable for demanding piping, isolation, maintenance, and fabrication applications.
Frequently Asked Questions
Q1: What is an industrial blind flange?
A1: A blind flange is a solid flange used to close the end of a pipeline, nozzle, vessel, or piping section.
Q2: What sizes of blind flanges does Rishabh Industries offer?
A2: Rishabh Industries offers blind flanges from 1/2″ (15 NB) to 48″ (1200 NB), subject to the required standard and configuration.
Q3: Which materials are available for blind flanges?
A3: Options include carbon steel, stainless steel, alloy steel, duplex, super duplex, and nickel alloys.
Q4: What pressure ratings are available?
A4: Available ratings include Class 150 to Class 2500 and PN6 to PN64, along with other requirements where applicable.
Q5: Which blind flange face types are available?
A5: Rishabh Industries offers Flat Face (FF), Raised Face (RF), and Ring Type Joint (RTJ) configurations.
Q6: Can Rishabh Industries manufacture customized blind flanges?
A6: Yes. Customized blind flanges can be manufactured with CNC machining and customer-specific drawings or dimensional requirements.
Get precision-engineered blind flanges from Rishabh Industries for your industrial piping requirements and applications.
Website: www.rishabhind.in
Email Id: info@rishabhind.in
Phone No: 99305 32430
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