Our DN800 Heating-Specialized Ball Valve Enters Final Painting Stage – Premium Craftsmanship Ensures Heating Safety

Recently, the DN800 large-caliber heating-specific ball valve manufactured by our company completed the valve body painting process and entered the key surface treatment finishing stage. This batch of products will be used and shipped to the Kuwait heating network renovation project. Its high-quality manufacturing process and strict quality inspection process provide solid guarantees for the safe and stable operation of the heating system.

Focus on process: Double painting technology builds a solid anti-corrosion barrier.

For the high humidity and high corrosive conditions of the heating network, the 800-caliber ball valve produced this time adopts **epoxy primer + polyurethane topcoat double protection process**. The technical team accurately controls the spraying thickness and uniformity to ensure that the paint film adhesion reaches the highest level of international standards and effectively resists water vapor erosion and chemical medium corrosion. At present, the valve body surface painting has been fully completed, and the infrared detector scan confirms that there are no defects such as sagging and bubbles. It has entered the natural curing stage in a constant temperature environment, and it is expected to complete the paint film hardness acceptance within 3 days.

Overcoming difficulties: precision manufacturing of large ball valves

DN800 ball valves are the core control equipment of the main heating pipeline, and have extremely high requirements for sealing performance and structural strength. Relying on the mature large-caliber valve production line, the company has overcome technical difficulties in three aspects: material strengthening, precision machining, and process control. Penetrant testing and X-ray testing are implemented throughout the process, and the first-time pass rate of key items reaches 100%.

Efficient performance: scientific scheduling to ensure project progress

– Casting, machining, assembly, and other processes are completed 2 weeks ahead of schedule;

– The painting process dynamically adjusts the operation sequence through the real-time humidity monitoring system.

– The logistics team has planned a special transportation plan to ensure that it will be shipped within 24 hours after the curing acceptance.

Customer expectations and industry value

The project leader said: "This batch of large-diameter ball valves is the key equipment for upgrading the heating 'aorta' in the future. Your company's full control from process details to delivery rhythm makes us confident that the project will be put into operation as scheduled." This batch production not only demonstrates our company's technological leadership in the field of ultra-large-diameter valves, but also accumulates valuable experience for subsequent long-distance heat pipe network projects.

In the future, our company will continue to deepen its presence in the field of urban infrastructure supporting facilities, and help the construction of the country's green heating system with smarter and more durable fluid control products.