Flange
Premium Quality Flanges for Industrial Applications
Flanges are essential components in piping systems, providing a reliable method for connecting pipes, valves, pumps and other equipment. Our high-performance flanges meet the most demanding industrial requirements with superior materials and precision engineering.
Key Features of Our Flanges
- Manufactured from high-grade carbon steel, stainless steel, and alloy materials
- Available in various pressure ratings (150# to 2500#)
- Compliant with ASME/ANSI, DIN, JIS, and other international standards
- Precision machined surfaces for perfect sealing
- Multiple facing types including raised face, flat face, and ring-type joint
- Anti-corrosion treatments available for harsh environments
Flange Technical Specifications
| Type | Size Range | Pressure Rating | Material Options |
|---|---|---|---|
| Weld Neck | 1/2" to 60" | 150# - 2500# | A105, A182 F304/F316, F51 |
| Slip-On | 1/2" to 24" | 150# - 900# | A105, A350 LF2, A182 F304 |
| Blind | 1/2" to 60" | 150# - 2500# | A105, A182 F316L, F51 |
| Socket Weld | 1/2" to 4" | 3000# - 6000# | A105, A182 F304/F316 |
Flange FAQ Section 1
What are the different types of flanges available?
The main types of flanges include weld neck, slip-on, socket weld, lap joint, threaded, and blind flanges. Each type serves specific purposes in piping systems. Weld neck flanges provide the strongest connection for high-pressure applications, while slip-on flanges are easier to install for lower pressure systems. Blind flanges are used to terminate piping systems.
Flange Dimensions and Tolerances
| Nominal Size | Outside Diameter | Bolt Circle Diameter | Thickness (150#) | Number of Bolts |
|---|---|---|---|---|
| 1/2" | 3.50" | 2.38" | 0.44" | 4 |
| 2" | 6.00" | 4.75" | 0.56" | 8 |
| 6" | 10.00" | 8.50" | 0.81" | 12 |
| 12" | 19.25" | 15.00" | 1.12" | 16 |
Flange FAQ Section 2
How do I select the right gasket for my flange connection?
The gasket selection depends on several factors including the flange type, pressure rating, temperature, and the fluid being transported. For standard applications, spiral wound gaskets with inner rings are commonly used. For high-temperature services, metal jacketed gaskets are preferred. Always ensure the gasket material is compatible with both the flange material and the process media to prevent corrosion or failure.
Material Specifications
- Carbon Steel (A105): Standard material for general service, suitable for temperatures from -29°C to 427°C
- Stainless Steel 304: Excellent corrosion resistance for chemical applications, temperature range -254°C to 816°C
- Stainless Steel 316: Superior resistance to chlorides and acids, ideal for marine environments
- Alloy Steel F11/F22: High-temperature service for power plants and refineries
- Duplex Steel: Combination of high strength and corrosion resistance for demanding applications
Flange FAQ Section 3
What maintenance is required for flange connections?
Regular inspection of flange connections should include checking for leaks, bolt tightness, and signs of corrosion. Bolts should be retorqued according to the manufacturer's specifications after initial installation and periodically during operation. For critical services, consider implementing a predictive maintenance program with ultrasonic testing or thermography. Always use proper lubrication on bolt threads and follow the correct bolt tightening sequence to ensure even load distribution.
Pressure-Temperature Ratings
| Material | 150# @ 38°C | 300# @ 100°C | 600# @ 200°C |
|---|---|---|---|
| A105 | 285 psi | 260 psi | 230 psi |
| F304 | 275 psi | 250 psi | 225 psi |
| F316 | 270 psi | 245 psi | 220 psi |
| F51 | 290 psi | 265 psi | 240 psi |
Our flanges undergo rigorous quality control including material certification, dimensional inspection, and pressure testing to ensure reliability in your piping systems. We offer custom solutions for special applications including large-diameter flanges, special coatings, and non-standard configurations.