Slip On Flange

1. Product Description

The Slip-on Flange is a type of flange that slips over the pipe and is welded on both the inside and outside, providing a strong, secure connection. It is widely used in pipelines to connect pipes, valves, pumps, and other equipment in a variety of industries. The Locus Slip-on Flange is designed for easy installation, cost-effectiveness, and durability.

2. Product Specifications

• Material: Carbon Steel, Stainless Steel (304, 316), Alloy Steel, Cast Iron
• Size Range: From 1/2″ to 48″ (custom sizes available)
• Pressure Rating: 150#, 300#, 600#
• Face Type: Raised Face (RF), Flat Face (FF)
• Finish: Smooth finish or with a seal welding groove
• Standards: Conforms to ASME B16.5, DIN 2573, BS 4504
• End Type: Slip-on design (for welding to pipes)
• Temperature Rating: -29°C to 300°C
• Certification: CE, RoHS, ISO 9001:2015, PED, NSF
• Material Grade: A105, A182, A350, A694 (depending on material)

3. Working Principle

The Slip-on Flange works by being fitted over the end of a pipe. After being positioned, it is welded both internally and externally, securing the pipe and the flange together. The flange is used to connect the pipe to other flanged components, such as valves, pumps, and tees. This provides a leak-tight seal and a strong connection that can handle the internal pressure of the pipe system.

4.Principle of Operation

The basic principle of the Slip-on Flange operation involves:

1. 1. Pipe Preparation: The pipe end is beveled and cleaned to ensure a proper fit.
   2. Flange Installation: The slip-on flange is placed over the pipe, and the joint is aligned.
   3. Welding: The flange is welded to the pipe both internally and externally to ensure a secure, leak-proof connection.
   4. Flange Tightening: The flanged connection is tightened with bolts to achieve a proper seal.

5. Assembly

The assembly of a Slip-on Flange involves:

1. 1. Cleaning: Clean the pipe end and flange face to remove any dirt, oil, or corrosion.
   2. Aligning: Position the flange over the pipe and align it with the other connected components.
   3. Welding: Perform the welds on both the inside and outside of the flange-pipe joint to secure them together.
   4. Testing: Perform pressure tests to ensure there is no leakage in the connection.

6. Installation Process

1. Preparation:
   • Clean the pipe ends and flange faces thoroughly.
   • Ensure the correct size and pressure rating for the application.
2. Positioning:
   • Slide the flange over the pipe so that it is properly aligned with the connecting pipe or valve.
3. Welding:
   • Weld the inside and outside surfaces of the flange to the pipe.
   • Ensure the weld is complete and strong.
4. Testing:
   • Conduct a pressure test to check for any leaks in the connection.
   • Inspect the weld for any defects or weaknesses.
5. Final Inspection:
   • Confirm that the installation meets industry standards and safety requirements.

7. Technical Specifications

8. Troubleshooting

• Leakage: If leakage occurs, ensure proper welding or reseal the flange joints with gasket material.
• Incorrect Alignment: Misalignment of the pipe and flange can result in stress and potential failure. Ensure proper alignment before welding.
• Cracking: Cracking may occur if the flange is exposed to excessive pressure or improper welding. Ensure welding is done according to specifications and that pressure ratings are adhered to.

9. HS Code

• HS Code for Slip-on Flange: 73072110 (Flanges of Steel, other than cast)

10. Frequently Asked Questions (FAQs)

1. What is the difference between a slip-on flange and a weld-neck flange?
   • A slip-on flange fits over the pipe and is welded on both sides, while a weld-neck flange is attached to the pipe by a tapered neck. The weld-neck flange is stronger and typically used in higher-pressure applications.
2. Can slip-on flanges be used for high-pressure systems?
   • Yes, slip-on flanges are suitable for medium to high-pressure systems but should be used within their rated pressure range.
3. How do I choose the correct slip-on flange?
   • Consider the size of the pipe, pressure rating, temperature conditions, and the material of both the pipe and the flange.
4. Are there any special maintenance requirements?
   • Regular inspection for corrosion, wear, and pressure testing are recommended for maintaining the flange’s integrity.

11. Applications

• Oil & Gas Industry: For pipeline systems, connecting pipes, valves, and pumps.
• Water Treatment Plants: Connecting pipes in water filtration and treatment systems.
• HVAC Systems: Used for piping systems in heating, ventilation, and air conditioning.
• Chemical Processing: Connecting pipes and reactors in chemical plants.
• Marine Industry: For securing connections in shipbuilding and offshore platforms.