Ring Flanges Manufacturers Mumbai India
Ring Flanges Manufacturers Mumbai India. Best Price Exporter Supplier of Customize Flange for Europe, US, UK & Gulf. Call +91-9769996991
Ring flanges by Falcon are critical components in piping systems, ensuring a secure and leak-proof connection between pipes, valves, and equipment. They are widely used in industries such as oil & gas, petrochemicals, water treatment, and power plants due to their durability and strength.
What is a Ring Flange?
A ring flange is a circular metal disc with bolt holes used to connect two sections of a piping system. It helps to provide structural integrity and ensures a leak-free connection.
Unlike other flanges, ring flanges often work with ring-type joint (RTJ) gaskets, which enhance sealing performance under high pressure and temperature conditions.
Key Features of Ring Flanges:
✔ Circular disc with pre-drilled bolt holes.
✔ Designed for high-pressure and high-temperature applications.
✔ Compatible with ring-type joint (RTJ) gaskets for a secure seal.
✔ Manufactured from materials like carbon steel, stainless steel, and alloy steel.
Types of Ring Flanges
Ring flanges are classified based on their design, application, and pressure handling capacity.
1. Ring-Type Joint (RTJ) Flange
- Designed for high-pressure applications.
- Uses a groove and metal gasket for a tight seal.
- Common in oil & gas pipelines and chemical processing plants.
2. Raised Face Ring Flange
- Has a slightly raised sealing surface to improve gasket compression.
- Suitable for medium to high-pressure systems.
3. Flat Face Ring Flange
- The sealing surface is flat, making it ideal for low-pressure applications.
- Used in water treatment and HVAC systems.
4. Lap Joint Ring Flange
- Works with a stub end to allow easy disassembly.
- Suitable for frequent maintenance applications.
Benefits of Using Ring Flanges
Ring flanges are widely used due to their strength and versatility.
✔ Leak-Proof Sealing – Compatible with RTJ gaskets for a secure fit.
✔ High Durability – Made from robust materials for extreme conditions.
✔ Corrosion Resistance – Available in stainless steel and alloy coatings.
✔ Easy Installation & Maintenance – Designed for quick assembly.
✔ Versatile Applications – Used in industries like oil & gas, chemical, water treatment, and power plants.
Ring Flange Specifications
Ring flanges must comply with industry standards to ensure safety and compatibility.
1. Standard Specifications
Ring flanges are manufactured according to the following international standards:
- ASME/ANSI B16.5 – Standard for pipe flanges up to 24 inches.
- ASME B16.47 – Covers large-diameter flanges above 24 inches.
- EN 1092-1 – European standard for flange connections.
- DIN 2632/2633 – German standard for high-pressure flanges.
- JIS B2220 – Japanese industrial standard for steel flanges.
2. Material Specifications
Ring flanges come in various materials depending on temperature, pressure, and environmental conditions.
| Material | Properties & Applications |
|---|---|
| Carbon Steel | High strength, used in high-pressure piping. |
| Stainless Steel | Corrosion-resistant, ideal for chemical and marine environments. |
| Alloy Steel | Heat-resistant, suitable for extreme temperature applications. |
| Duplex Steel | High corrosion resistance, used in offshore and marine industries. |
| Copper-Nickel | Used in seawater and desalination plants. |
3. Size & Dimensions
Ring flanges come in various sizes based on nominal pipe size (NPS) and pressure class.
Common Ring Flange Dimensions (ANSI B16.5 Standard)
| Nominal Pipe Size (NPS) | Outer Diameter (OD) mm | Bolt Circle Diameter (BCD) mm | Number of Bolt Holes |
|---|---|---|---|
| ½” | 90 | 60 | 4 |
| 1″ | 125 | 90 | 4 |
| 2″ | 150 | 120 | 4 |
| 4″ | 230 | 190 | 8 |
| 6″ | 280 | 241 | 8 |
| 8″ | 345 | 298 | 8 |
| 10″ | 405 | 362 | 12 |
| 12″ | 485 | 432 | 12 |
(Note: Exact dimensions vary based on pressure class and standard.)
4. Pressure Ratings
Ring flanges are available in multiple pressure classes, ranging from low to extremely high pressure.
| Class (ANSI/ASME B16.5) | Maximum Pressure (PSI) |
|---|---|
| Class 150 | 285 PSI |
| Class 300 | 740 PSI |
| Class 600 | 1,480 PSI |
| Class 900 | 2,220 PSI |
| Class 1500 | 3,700 PSI |
| Class 2500 | 6,170 PSI |
Higher class ratings indicate better pressure resistance and durability.
Common Applications of Ring Flanges
🔹 Oil & Gas Industry – Used in pipeline transportation and refineries.
🔹 Chemical Processing Plants – Resistant to corrosive chemicals.
🔹 Water Treatment Systems – Ensures leak-proof water flow.
🔹 Power Plants – High-pressure steam and gas piping applications.
🔹 Marine & Shipbuilding – Corrosion-resistant solutions for ship piping systems.
Maintenance & Care Tips
To ensure longevity and performance, follow these maintenance tips:
✔ Regular Inspection – Check for wear, corrosion, and loose bolts.
✔ Proper Cleaning – Remove dirt and residue from the flange surface.
✔ Lubricate Bolts – Prevent rust and ease future disassembly.
✔ Use High-Quality Gaskets – Ensure a proper seal for leak prevention.
Frequently Asked Questions (FAQs)
1. What is the difference between a ring flange and a slip-on flange?
A ring flange is designed for high-pressure applications and often uses RTJ gaskets, while a slip-on flange is a lower-pressure option that slides over the pipe before welding.
2. Can ring flanges be used in underground piping?
Yes, but corrosion-resistant materials like stainless steel or galvanized coatings should be used to prevent rust.
3. How do I select the right pressure rating for a ring flange?
Consider operating pressure, temperature, and environmental factors. Use ASME class ratings to match system requirements.
4. Are ring flanges reusable?
Yes, if properly maintained. However, the gasket should always be replaced when reusing a flange.
5. Do ring flanges require special gaskets?
Yes, they commonly use ring-type joint (RTJ) gaskets, which provide a metal-to-metal seal for high-pressure applications.
Ring flanges play a crucial role in industrial piping systems, providing durability, high-pressure resistance, and leak-proof connections. By understanding their types, specifications, and applications, you can select the best flange for your project.
If you’re looking for high-quality ring flanges, always buy from a certified manufacturer that meets ASME, DIN, and EN standards.