Professional Guide: Complete Process of Slip-On Flange Installation

1.Preparation Before Installation

Before performing Slip-on flange installation, the following preparations must be made:

• ● Use professional cleaning tools to thoroughly remove oil, rust, and other impurities from the pipe ends and the inner surface of the Slip On Pipe Flange.
• ● Carefully inspect the flange sealing surfaces and the ends of the pipes for mechanical damage.
• ● Prepare appropriate welding equipment and protective gear.

2.Pipe Cutting and Processing

• ● Accurately measure the pipe length (including the extra length required for flange installation).
• ● Use a plasma cutter or professional pipe cutter for cutting.
• ● Ensure the cut is smooth with a deviation of no more than 0.5mm.

3.Flange Assembly and Positioning

• ● Smoothly insert the Slip On Pipe Flange onto the pipe end.
• ● Adjust the flange position to ensure the pipe end protrudes 6±1mm from the flange face.
• ● Use a spirit level to check the flange's verticality.

4.Welding Process Key Points

• ● Use the three-point positioning welding method to fix the flange in place.
• ● Perform continuous corner welds (it is recommended to use TIG welding).
• ● Control the welding temperature to prevent thermal deformation.

5.Final Connection and Testing

After completing the Slip-on flange installation:

1. ① Wait for the welds to cool completely.
2. ② Install the corresponding gasket and bolts.
3. ③ Tighten the bolts in a diagonal sequence.
4. ④ Perform a leak test for airtightness (it is recommended to use helium mass spectrometry leak detection).

Conclusion

Mastering standardized Slip-on flange installation techniques not only ensures the reliability of the Slip on flange connection but also significantly extends the service life of the pipeline system. It is recommended that operators undergo professional training and strictly follow relevant standards during the installation process.