Double jointing is a process in which two singular pipes are welded together to form up to an 80’ length. This process takes place prior to any coating application, meaning that the joint is coated at the full 80’ length.
There are several benefits to Double Jointing during the coating process:
- Double Jointing reduces the need for Field Joint coating, a process in which the pipe weld joints must be coated after welding in the field or at sea before being laid. This is a more expensive and less protective process.
- Welding joints together prior to transporting them to the field means cutting on-site welding in half and reducing the amount of time required for such an installation.