Tube Type Collector Posted on 23rd December 20153rd May 2021 by ThePD (The Project Definition) A Tube Type Collector is a type of solar thermal collector that has tube pipes. (Refer to the Evacuated Tube Collector) Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Engineering and tagged energy, solar energy. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.