Ring Joint Flanges
Minimum Order : 100 piece
Customization as per requirements
Ring Joint Flanges – Specification
| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Lap Joint, Companion |
|---|---|
| Class | 150 Lbs, 160, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Small Tongue, Flat Face (ff), Groove, Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove |
Ring Joint Flanges
Type of Sub-products

Rtj Weld Neck Flange Rtj Weld Neck Flange
Features a long tapered hub that transfers stress to the pipe, reducing turbulence at the joint. The weld neck connection makes it ideal for high pressure, high temperature pipelines where fatigue resistance is essential.

Rtj Slip On Flange Rtj Slip On Flange
Slides over the pipe and is welded from both sides, offering easier alignment than weld neck flanges. Common in medium to high pressure systems where frequent assembly and disassembly are required.

Rtj Blind Flange Rtj Blind Flange
A solid flange with an RTJ groove, used to seal the end of a pipeline, valve, or pressure vessel. Perfect for pressure testing, maintenance, or future expansion in critical service.
Frequently Asked Questions
What types of gaskets are used with Ring Joint Flanges?
The most common are oval and octagonal metal ring gaskets, typically made from soft iron, stainless steel, or exotic alloys. Selection depends on pressure rating, flange design, and media compatibility. The metal to metal seal achieved ensures long term reliability, even when thermal cycling or vibration occurs.
Which international standards govern Ring Joint Flanges?
RTJ flanges are produced in strict accordance with ASME B16.5, ASME B16.47 Series A & B, API 6A, MSS SP 44, and ISO/DIN standards. These codes cover dimensions, tolerances, pressure temperature ratings, bolt patterns, and materials, ensuring global compatibility. Compliance also provides traceability, making RTJ flanges acceptable for regulated industries like petrochemicals and offshore oil production.
Where are Ring Joint Flanges commonly applied?
These flanges are used in high pressure, high temperature applications across industries like oil & gas exploration, subsea pipelines, refinery units, chemical processing, and power generation. Their robust sealing makes them ideal for systems carrying hydrocarbons, corrosive fluids, or superheated steam, especially where failure is not an option. RTJ flanges are standard in API and ASME rated equipment for upstream and downstream operations.
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Countries We Export – Ring Joint Flanges
- India
Cities We Supply – Ring Joint Flanges
- Mumbai
- Lucknow
- Nashik
- Pune
- Rajkot
- Moradabad
- Angul
- Rudrapur
- Hosdurg
- Gandhinagar
- Rajahmundry
- Durgapur
- Bharuch
- Panipat
Industries We Serve – Ring Joint Flanges
Sugar
Oil And Gas Industries
Paper Mill
Power Plant
Bridge And Building
Aerospace Industries
Automobile Industry
Electrical Industry
Defense Industry
Construction & Fabrications
Ring Man Units
Railways

Gasket Industry
Pharmaceuticals Industry
