日本ヴィクトリック List of Products and Services

Due to the effects of ground subsidence, earthquakes, temperature expansion and contraction, various stresses are applied to the piping, which can lead to water leaks and pipe disconnections. Closure joints are most suitable for alleviating such stresses and absorbing displacements. Because the structural reaction force is small, the impact on the piping and structures is extremely minimal. With long-lasting and stable airtightness, as well as significant performance in absorbing expansion, eccentricity, and twisting, they are widely used, particularly in the fields of water supply, electricity, and plants. ● Absorption of displacements after piping - Uneven subsidence - Bending - Twisting - Temperature expansion and contraction - Piping vibration *For more details, please download the PDF or feel free to contact us.

The flexible expansion joint for large diameters (φ2400 and above) had economic issues due to the structure of its airtight mechanism. Therefore, the Multi-Def was developed for large diameters. We succeeded in changing the structure of the automatic rubber ring, allowing for the economical and reliable absorption of expansion and eccentricity in large diameter piping. It is used in water supply pipes for drinking water and cooling water pipes for power plants. *For more details, please download the PDF or feel free to contact us.*

This product is an "adjustable expansion joint" that allows for manual fine-tuning of pipe lengths. It makes it easy to adjust the position of the main pipe when attaching or detaching equipment such as valves, pumps, valve bodies, and flow meters, significantly reducing the burden of pipe renewal and maintenance work around machine rooms and equipment rooms. After installation, it is also expected to improve the pipe's ability to absorb expansion and enhance seismic performance, making it ideal for the maintenance of piping in power plants and facilities where earthquake resistance and thermal expansion measures are required. It also contributes to reducing water outage times, improving work efficiency, and lowering maintenance costs. *For more details, please download the PDF or feel free to contact us.*

You can use it to absorb temperature expansion and contraction that occurs in pipelines such as water pipe bridges, valves, and internal piping at pump stations, as well as for adjustment pipes during piping installation. ●Basic Performance 　・Absorption of temperature expansion and contraction 　・Absorption of bends *For more details, please download the PDF or feel free to contact us.