Blind Flange Manufacturers in India – RF, FF, RTJ Types & Prices 2025
Blind Flange Manufacturers in India – RF, FF, RTJ Types & Prices 2025
Looking for reliable blind flange manufacturers in India? Blind flanges are essential components used to close pipe ends, isolate flow sections, or pressure test pipelines. They are widely used across oil & gas, waterworks, HVAC, and industrial applications. This guide highlights verified Indian manufacturers, flange types, material specs, pricing, and where to get custom blind flanges for your project.
What is a Blind Flange?
A blind flange is a solid disk-shaped plate used to block off a pipeline or nozzle opening. Unlike other flange types, it has no center bore. Blind flanges are bolted to pipe ends and can be raised face (RF), flat face (FF), or ring-type joint (RTJ) depending on sealing requirements.
Common Blind Flange Standards:
- ANSI B16.5 (Class 150, 300, 600, etc.)
- IS 1538 (for MS blind flanges)
- ASME B16.47 (Series A/B)
- DIN 2527
Face Types:
- Raised Face (RF)
- Flat Face (FF)
- Ring-Type Joint (RTJ)
Top Blind Flange Manufacturers in India
1. Udhhyog – Leading MS & SS Blind Flange Supplier
- Manufactures MS, GI, and SS blind flanges from 1” to 36”
- Options for RF/FF/RTJ with CNC finish
- Supplies ANSI B16.5 & IS 1538 flanges
- RFQ Form | Contact Us | WhatsApp | ? +91-9311120784
2. SteelMark Flange Industries
- Carbon steel and forged steel blind flange specialist
- High-pressure flanges up to Class 600
3. Mega Pipe Fittings India
- DIN 2527 and IS standard blind flanges in bulk supply
- Offers galvanization and custom thickness
Blind Flange Specifications & Materials
| Property | Specification |
|---|---|
| Size Range | 1/2" to 48" (15NB to 1200NB) |
| Material Grades | MS (IS 2062), SS 304/316, ASTM A105, CS |
| Face Type | RF, FF, RTJ |
| Thickness | 5mm to 40mm |
| Drilling Pattern | ANSI/DIN/IS compatible |
| Pressure Ratings | Class 150, 300, 600 |
Blind Flange Price List (Approx – 2025)
| Flange Type | Size (inch) | Material | Price/pc (INR) |
|---|---|---|---|
| MS Blind RF | 3" | Mild Steel | ₹220 |
| SS 304 Blind FF | 2" | SS 304 | ₹450 |
| CS Blind RTJ | 4" | ASTM A105 | ₹570 |
| GI Blind Flange | 2" | Galvanized | ₹235 |
*Rates may vary by class, thickness, coating, and order volume
Applications of Blind Flanges
- Pipeline isolation and flow stoppage
- Equipment maintenance and test points
- Valve and pump end sealing
- Temporary blockages during line extensions
Benefits of Using Blind Flanges
- Easy to install and remove
- Suitable for pressure testing
- Cost-effective for temporary shutdowns
- Available in multiple pressure ratings and face types
How to Select the Right Blind Flange Manufacturer
- Check compliance with IS/ANSI/ASME standards
- Ask for MTC, ultrasonic test report, and finish tolerance
- Confirm drilling template and face machining (RF or FF)
- Request sample flanges if ordering above 500 pcs
- Verify logistics support for your zone (local or export)
Related Pages
- MS Flange Manufacturer in India
- GI Flange Manufacturer
- MS Flange Manufacturer in Delhi
- Custom Puddle Flange Manufacturing
FAQs on Blind Flange Manufacturers
Q1. What are blind flanges used for?
A1. Blind flanges seal off pipe ends and are used for flow isolation, maintenance, and pressure testing.
Q2. What is the difference between RF and FF blind flanges?
A2. RF (Raised Face) offers better sealing and pressure resistance than FF (Flat Face). FF is used where mating surfaces are flat.
Q3. Are SS and MS blind flanges available in custom sizes?
A3. Yes, manufacturers like Udhhyog fabricate as per drawings for 1" to 36".
Q4. Can blind flanges handle high-pressure lines?
A4. Yes. Class 300/600 RTJ flanges are ideal for high-pressure, high-temperature conditions.
Q5. What certifications should I check before buying?
A5. MTC, zinc or passivation test report, ultrasonic NDT, and drilling conformity with ANSI/DIN.
Contact Verified Blind Flange Manufacturer
Need high-quality blind flanges with MTC & best prices?
✅ Contact Udhhyog for MS, SS, GI, and CS blind flange supply in bulk.
? RFQ Form | ? +91-9311120784 | Contact Us | WhatsApp
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