清水工業所 Product Lineup

The "Cushion Ducky" is an expansion tank with anti-corrosion features suitable for central hot water supply systems in hospitals, hotels, and nursing facilities with high hot water usage. It is an all-in-one unit that can be installed in various locations and easily replaces existing tanks. Since it does not use pressure vessels, no notification is required. It efficiently degasses residual chlorine, dissolved oxygen, and free carbon in the hot water, reducing corrosion and extending the lifespan of the equipment. 【Features】 ■ Improved construction efficiency ■ Enhanced hygiene ■ Extended equipment lifespan ■ No notification required as it does not use pressure vessels ■ Solves common issues with conventional expansion tanks *For more details, please refer to the PDF document or feel free to contact us.

• tank
• Deaeration device
• Other water treatment equipment

Are you experiencing issues with corrosion and leakage troubles in your hot water piping, such as 'no matter how many times I fix it, leaks occur in different places and it never ends'? Our centrally controlled hot water piping anti-corrosion system 'Cushion Ducky' can easily resolve corrosion and leakage troubles without the need for pipe replacement. Most hot water piping systems deteriorate and corrode due to factors like 'degradation of resin materials' before reaching their intended product lifespan. Our product prevents the generation of microbubbles (dissolved gas bubbles), which are a cause of degradation, restoring the original product lifespan. 【Do you have these concerns?】 ■ No matter how many times I fix it, leaks occur in different places and it never ends. ■ I was told that the aging of the pipes is the cause, but redoing the piping incurs enormous costs. ■ If a problem occurs in customer areas such as guest rooms or hospital rooms, it becomes a major issue. *For more details, please refer to the PDF document or feel free to contact us.

• Deaeration device
• Other water treatment equipment

The "DS-84L" is an open-type degassing device that significantly improves the lifespan of hot water pipes by circulating degassed hot water. It reduces pitting and crevice corrosion caused by dissolved gases in hot water. By effectively removing corrosive substances, it maintains the excellent characteristics of the piping. No daily inspections or maintenance are required aside from regular replacement of consumables, and its integrated and compact design allows for flexible installation locations. 【Features】 ■ Easily attachable to existing equipment ■ No maintenance required ■ Extends the lifespan of piping ■ Reduces pitting and crevice corrosion caused by dissolved gases in hot water ■ Instantly resolves issues occurring in circulating hot water piping *For more details, please refer to the PDF materials or feel free to contact us.

• Deaeration device

Copper pipes are widely used for hot water supply piping due to their excellent corrosion resistance, workability, and long track record of use. However, depending on the environment in which they are used, particularly water quality, it is rare but possible for pitting or crevice corrosion to occur on the inner surface of the pipes, leading to leakage incidents. An open-type degassing device reduces these troubles and aims for improvement. 【Features】 ■ Reduces crevice and pitting corrosion caused by dissolved air, residual chlorine, and free carbonic acid in hot water ■ Direct degassing from the hot water pipe ■ Accommodates a wide range of hot water pressures (0.1 to 0.5 MPa) and fluctuations in hot water usage ■ Easy to install and compact due to its integrated design ■ No routine maintenance required *For more details, please download the PDF or feel free to contact us.

• Deaeration device