COSMO KOKI
Duvalco is the official distributor of Cosmo Koki in Singapore, a pioneer in live insertion (pipework under pressure) technology from Japan. Since 1959, Cosmo Koki has led the industry with innovative solutions that allow pipeline modifications without interrupting water supply — a critical advancement for urban infrastructure.
COSMO KOKI STORIES
From the development of high-efficiency cutters and boring machines to record-setting live insertion on 2600 mm pipes, Cosmo Koki continues to set industry standards. Their original insertion method enables valve and plug installations on live pipelines, minimizing service disruptions and supporting uninterrupted water supply even during major works.
With decades of R&D, Cosmo Koki offers a wide range of precision-engineered products for various pipeline materials and sizes — all produced under strict quality control.
As the leading name in pressurized pipeline solutions, Cosmo Koki backs its technology with responsive after-sales service, technical support, and on-site consultation, ensuring reliable performance and peace of mind for utility providers and contractors worldwide.
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