GERB Japan List of Products and Services

We would like to introduce our "Viscous Damper for Piping." This product is used to prevent vibration and damage in the piping of power plants and industrial plants. It is derived from viscous dampers that have been used in mechanical foundation systems alongside coil springs for over 50 years. The development of the viscous damper for piping began in the 1970s when users of nuclear power plants sought a low-cost, maintenance-free alternative to vibration isolators (snubbers). 【Features】 ■ Provides damping force in all degrees of freedom ■ Damping force is transmitted through a viscous medium, eliminating mechanical friction and sliding ■ Uses chemically stable viscous materials, ensuring high durability ■ Does not support static loads such as its own weight ■ Does not restrain low-speed movements like thermal expansion *For more details, please refer to the PDF document or feel free to contact us.

Users of power plants and turbine manufacturers place importance on the following benefits: • Prevention of damage to turbine equipment due to earthquakes • Reduction of foundation construction costs and time • Expansion of available space for condensers and piping under the turbine • Ability to separate the turbine foundation from the substructure consisting of columns and beams, thereby blocking vibration transmission • Possibility of integrating the above substructure with the turbine building • Ease of adjusting the height of the turbine deck in the event of uneven settlement of the foundation, even allowing for adjustments while continuing operation

This document introduces the elastic support of power plant structures and equipment. It provides detailed information on "vibration control" and "earthquake measures." Additionally, it discusses "adjustments during ground subsidence" using a gel elastic support system. The content is presented clearly with images and diagrams, making it a useful reference when considering implementation. We encourage you to read it and make use of it. 【Contents (partial)】 ■ Vibration measures for power plant structures and equipment ■ Vibration control ■ Earthquake measures ■ Adjustments during ground subsidence *For more details, please download the PDF or feel free to contact us.

Our company conducts installation and adjustment work for viscous dampers and spring elements, as well as installation supervision work and measurement and analysis of vibrations and solid sounds generated by machinery and equipment. We provide economical vibration isolation foundations that meet customer requirements for various types of equipment. The technology for reducing vibrations has been researched and refined at Gelb for many years to ensure the safety and reliability of machinery. If you are troubled by even very small vibrations or noise in your surroundings, Gelb is here to support you. 【Areas of Activity (Partial)】 ■ Installation and adjustment work for viscous dampers and spring elements, as well as installation supervision work ■ Measurement and analysis of vibrations and solid sounds generated by machinery and equipment ■ Engineering from the provision of fabrication drawings for both reinforced structures and reinforced concrete structures to construction supervision ■ Foundation design for machinery and equipment or building structures, considering cost-effectiveness based on customer specifications *For more details, please download the PDF or feel free to contact us.