Improving Screw Compressor Rotors The 12th biennial International Conference on Compressors and Their Systems, which took place at City, University of London in September 2021, included a fascinating joint industry presentation by Professor Christopher Holmes of PTG Holroyd and Jack Sauls (retired), formerly of Trane.To get more news about Screw pump rotor, you can visit hw-screwpump.com official website. Discussing the importance of international collaboration on screw compressor design, Christopher and Jack used their own experiences of working together to highlight the benefits of an open collaboration between designers and manufacturers. Committed to the advancement of compressor technology, PTG Holroyd has been Platinum Sponsor of the City, University of London ‘Compressor Conference’ ever since it was first held in 1999. Each conference is widely regarded as one of the world’s leading seminars on compressors and their systems, and provides a forum where developments in air, gas and refrigeration compressors, vacuum pumps, expanders, related systems and components are discussed. City, University of London is globally recognised for the Centre for Compressor Technology.