六菱ゴム Official site

Rokubun Rubber Co., Ltd. will be exhibiting at the "Sewage Exhibition '24 Tokyo" held at Tokyo Big Sight. This is the largest domestic exhibition in the sewage field, targeting local governments and other administrators of sewage projects nationwide. It showcases and introduces advanced technologies, equipment, and services in a wide range of areas related to sewage, based on the results of ongoing technological development by sewage-related companies (organizations) across the country. We sincerely look forward to your visit.

Rokubun Rubber Co., Ltd. will be exhibiting at "INTERPHEX Week Tokyo 2024." Location: Tokyo Big Sight, East Hall 1-8, Booth Number 16-20 We sincerely look forward to your visit.

Rokubun Rubber Co., Ltd. will be exhibiting at the "Disaster Prevention Industry Exhibition 2024." At this exhibition, we will showcase services and products related to the disaster prevention industry under the theme "Realizing a Resilient Society through Disaster Prevention and Mitigation." In addition to being held at Tokyo Big Sight West Hall from February 20 (Tuesday) to February 22 (Thursday), 2024, it will also be held online from February 14 (Wednesday) to February 29 (Thursday), 2024. We sincerely look forward to your visit.

Development of PIP Method Plugs In the pipe-in-pipe (PIP) method, a non-excavation renewal technique for aging existing pipes, there has been a recent demand for safety measures that involve double sealing using two valves instead of a single closure with one existing valve during pipe renewal work. The "PIP Plug Method" developed by Rokubishi Rubber enables double sealing (existing valve + closure plug) by installing a closure plug on the inner surface of the pipe, ensuring the safety of workers. ◆ Construction Achievements ◆ - Tokyo Waterworks Bureau, Wadahori Water Supply Station - Piping: Ductile cast iron pipe 1500A - Pressure resistance: 0.75MPa - Year of construction: July 2017 - Achieved sizes: 1000 to 1800A

Since the Great East Japan Earthquake that occurred on March 11, 2011, Rokubishi Rubber has been cooperating with the national project aimed at decommissioning the Fukushima Daiichi Nuclear Power Plant. So far, we have been involved in the development of important airtight mechanisms, including the closure plug for the X-53 penetration, the gripping mechanism and airtight seal for the X-6 penetration connection, and the sealing mechanism for the isolation chamber within the stage, as part of the internal investigation of the reactor containment vessel (PCV). Recently, we delivered a sealed transfer container (double cover port container) to the project, which will be used for the development of retrieval technology aimed at experimentally extracting and analyzing fuel debris. In response to the unprecedented decommissioning work globally, Rokubishi Rubber will continue to take on challenges with our unique sealing technology.