Heavy Barrel Flange
At first distributors, We offer Heavy Barrel Flanges. These flanges deliver exceptional strength, durability, and resistance to stress-making them ideal for high-pressure and high-temprature applications.
Items We Offer:
| Size Range: | 1/2" - 48" Diameter |
| Face Types: | Raised Face, RTJ |
| Class: | 300 through 2500 |
| Carbon Steel: | A105, A350 LF2 |
| Stainless Steel: | 304, 316 |
| Special Alloy: | Inconel, Monel, Duplex, Super Duplex |
What is Heavy Barrel Flange?
A Heavy Barrel Flange is a specialized flange with a thick, extended hub (barrel) that provides additional reinforcement beyond standard weld neck or long weld neck designs.
These flanges are commonly used where:
- Pressure and stress levels exceed standard flange capabilities
- Additional reinforcement is required at critical connections
- Equipment connections (e.g., vessels, compressors) demand higher integrity
Key advantages:
- Increased wall thickness for superior strength
- Enhanced resistance to bending and thermal stress
- Reduced risk of fatigue failure in cyclic service
- Designed for severe service conditions
How Heavy Barrel Flanges compare
| Feature | Weld neck | Long weld neck (lwn) | Heavy barrel |
| Hub length | Standard | Extended | Extended + thickened |
| Wall thickness | Standard | Moderate | Heavy reinforced |
| Stress resistance | Good | Excellent | Maximum |
| Typical use | General service | Critical service | Extreme service / high stress |
Common applications
Heavy Barrel Flanges are used in the most demanding service environments:
- High-pressure oil & gas systems
- Refineries and petrochemical plants
- Power generation facilities
- Compressor and pump connections
- Pressure vessels and critical nozzles
- Offshore and subsea applications
- High-temperature piping systems
When to use Heavy Barrel Flanges
Heavy Barrel Flanges are typically selected when:
- High-pressure oil & gas systems
- Additional reinforcement is required at the connection point
- System design involves extreme pressure, temperature, or cyclic loading
- Equipment connections require custom-engineered solutions
Fast RFQ turnaround for complex requirements
We specialize in handling complex, specification-driven rfqs.
Whether your request includes detailed drawings, datasheets, or just a rough description, our team can quickly identify or source the correct heavy barrel flange for your application.