Flange elbow
Premium Quality Flange Elbows for Industrial Applications
Flange elbows are essential components in piping systems, designed to change the direction of flow while maintaining structural integrity. Our flange elbows meet international standards and are manufactured using high-grade materials for superior performance.
Key Features of Our Flange Elbows
- Material: ASTM A105, A182 F304/F316, Duplex Steel
- Pressure Rating: Class 150 to Class 2500
- Size Range: 1/2" to 24"
- Surface Treatment: Anti-corrosion coating available
- Standards: ANSI B16.5, ASME B16.9, DIN, JIS
- Temperature Range: -29°C to 425°C
Flange Elbow Technical Specifications
| Type | 90° LR Elbow | 45° LR Elbow | 90° SR Elbow |
|---|---|---|---|
| Center-to-Face Dimension | 1.5 x Nominal Size | 1.5 x Nominal Size | 1.0 x Nominal Size |
| Wall Thickness | Schedule 5S to XXS | Schedule 5S to XXS | Schedule 5S to XXS |
| End Connection | RF, RTJ, FF | RF, RTJ, FF | RF, RTJ, FF |
Flange Elbow FAQ
Q: What is the difference between long radius and short radius flange elbows?
A: Long radius (LR) flange elbows have a centerline radius equal to 1.5 times the pipe diameter, providing smoother flow with less pressure drop. Short radius (SR) elbows have a radius equal to the pipe diameter, used where space is limited but create more turbulence.
Q: How do I select the right material for my flange elbow?
A: Material selection depends on your application requirements. Carbon steel (A105) is economical for general service, stainless steel (304/316) offers corrosion resistance for chemical processes, while duplex steel provides superior strength for high-pressure, corrosive environments.
Q: What maintenance is required for flange elbows?
A: Flange elbows require periodic inspection for leaks, corrosion, and mechanical damage. Gaskets should be checked during routine maintenance, and bolting torque verified annually. Proper alignment during installation prevents premature wear.
Flange Elbow Applications
- Oil and gas pipelines
- Chemical processing plants
- Power generation facilities
- Water treatment systems
- HVAC installations
- Food and beverage processing
Flange Elbow Manufacturing Process
- Material selection and verification
- Precision cutting and forming
- Heat treatment (when required)
- Machining of flange faces
- Surface finishing
- Quality inspection and testing
- Marking and packaging
Quality Assurance
Our flange elbows undergo rigorous quality control including:
- Material certification (MTC)
- Dimensional verification
- Pressure testing
- Visual inspection
- Non-destructive testing (PT, MT, UT)
Flange Elbow FAQ (Continued)
Q: Can flange elbows be used in high-temperature applications?
A: Yes, flange elbows can handle high temperatures depending on material selection. Carbon steel elbows are suitable up to 425°C, while stainless steel can withstand higher temperatures. Always consult temperature ratings for specific materials.
Q: What are the available flange facing types for flange elbows?
A: Common facing types include Raised Face (RF), Flat Face (FF), and Ring-Type Joint (RTJ). RF is most common for general applications, FF for low pressure with full-face gaskets, and RTJ for high-pressure services.
Q: How do I properly install a flange elbow?
A: Ensure proper alignment of piping before installation. Use appropriate gaskets and lubricate bolts. Tighten bolts in a star pattern gradually to achieve even pressure. Follow torque specifications and perform a final leak test.