Internal Line Up Clamp’s (ILUC) are commonplace in the pipeline welding industry. They align two pipe sections using internal hydraulic or pneumatic rams and external automatic welding equipment is used to weld the root pass. Additionally, for welding duplex or Inconel-clad pipes, a purge dam is fitted to the ILUC.
Wireless Remote O2 Sensor for Pipeline Welding fitted to Internal Line Up Clamp
Although O2 monitoring may already be built into the ILUC, sometimes factory-supplied options:
- are not accurate enough at low levels
- cannot provide additional external signalling
On several occasions, we devised retrofit kits for accurate low-level O2 measurements with remote display and signaling for onshore and offshore pipeline welding clients.
Custom-Designed Zirconia and Optical Oxygen Sensor Modules
The custom-designed zirconia and optical oxygen sensor modules, fitted with an internal sampling pump, can be controlled remotely. These are designed to work from the 24V DC internal supply on the ILUC.
The module is programmable with alarm limits. A traffic light visual alarm system provides an external display of the O2 levels down to 1ppm. The alarm displays red, yellow, and green lights and emits audible warnings based on pre-programmed alarm levels. Data logging capability is available onboard to record and report the digital data for the purge time and levels after welding.
We custom-design all modules to meet our client’s specific requirements. If you have a welding application requiring automated remote monitoring of purging, contact us to discuss your project requirements.