Introduction
This manual provides instructions for the proper installation and maintenance of your 304 Stainless Steel 90 Degree Elbow Butt Welded Pipe Fitting Adapter. This product is designed for redirecting fluid flow in piping systems where a 90-degree turn is required. Made from high-quality 304 stainless steel, it offers excellent corrosion resistance and durability for various applications.
Installation (Butt Welding)
This pipe fitting is designed for butt welding. Proper welding procedures are crucial for a secure and leak-free connection. It is recommended that installation be performed by qualified personnel following industry standards (e.g., ASME B31.1, ASME B31.3).
- Preparation: Ensure the pipe ends and the fitting are clean, free from grease, oil, rust, or any contaminants. Bevel the pipe ends if necessary to achieve a proper weld joint.
- Alignment: Align the elbow fitting with the pipes to be joined, ensuring proper orientation and fit-up. Use clamps or tack welds to hold the components in place.
- Welding: Perform butt welding according to established welding procedures for 304 stainless steel. Common welding methods include TIG (GTAW) or MIG (GMAW). Ensure full penetration and a smooth, consistent weld bead.
- Inspection: After welding, allow the joint to cool slowly. Visually inspect the weld for defects such as cracks, porosity, or incomplete fusion. Non-destructive testing (NDT) methods like radiography or dye penetrant inspection may be used for critical applications.
- Cleaning: Clean the welded area to remove any slag, spatter, or discoloration (heat tint) to restore corrosion resistance. Pickling and passivation may be required for optimal performance.
Operation
This 90-degree elbow is a passive pipe fitting and does not require active operation. Once properly installed, it functions as a permanent part of the piping system, redirecting the flow of the applicable medium.
Maintenance
304 stainless steel is known for its corrosion resistance and requires minimal maintenance. However, periodic inspection is recommended to ensure the integrity of the piping system.
- Visual Inspection: Regularly inspect the fitting and surrounding pipework for any signs of corrosion, leaks, cracks, or mechanical damage.
- Cleaning: If the external surface becomes dirty, clean it with mild soap and water. Avoid abrasive cleaners or tools that could scratch the surface and compromise the passive layer.
- Environmental Considerations: Ensure the operating environment is compatible with 304 stainless steel, especially concerning chemical exposure, to prevent accelerated corrosion.
Troubleshooting
As a passive component, the elbow itself typically does not malfunction. Most issues related to pipe fittings stem from improper installation or material incompatibility.
- Leaks at Joint:
- Cause: Improper welding, insufficient penetration, weld defects, or stress on the joint.
- Solution: Inspect the weld joint. If defects are found, the joint may need to be repaired or re-welded by a qualified professional. Ensure proper support for the piping system to minimize stress.
- Corrosion:
- Cause: Exposure to incompatible chemicals, damage to the passive layer, or improper post-weld cleaning.
- Solution: Identify the corrosive agent and mitigate exposure. Clean and passivate the surface if the passive layer is compromised. Replace the fitting if corrosion is severe.
Specifications
| Feature | Detail |
|---|---|
| Material | 304 Stainless Steel |
| Type | 90 Degree Elbow, Equal |
| Connection | Butt Weld |
| Technics | CNC |
| Outer Diameter (OD) Range | 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 27mm, 32mm, 34mm, 38mm, 42mm, 45mm, 48mm, 51mm, 57mm, 60mm, 76mm, 89mm, 108mm |
| Size Composition | Outer Diameter * Wall Thickness (e.g., 16x3mm) |
| Pressure Rating | ≥850 kPa |
| Applicable Medium | Water, Steam, Oil |
| Certification | None |
| Origin | Mainland China |
User Tips
- Verify Dimensions: Always double-check the Outer Diameter (OD) and Wall Thickness (WT) of the fitting against your piping system requirements before purchase and installation. Precise dimensions are crucial for a proper fit and weld.
- Professional Installation: For critical applications or complex piping systems, consider hiring a certified welder or pipefitter to ensure safe and compliant installation.
Warranty and Support
For specific warranty information or technical support, please refer to the seller's policies or contact the point of purchase. Ensure you retain your purchase records for any warranty claims.