SAN HUA LI

Shandong Sanhuali Machinery Technology Co., Ltd.

Sanhuali Company’s independently developed products—including the self-regulating anti-freeze valve for tap water, solar energy anti-freeze valve, freeze-proof and collision-resistant fire hydrant, and outdoor riser anti-freeze plug—feature a unique functionality: "Open the valve to use water; close it to prevent freezing—no additional insulation materials required, ensuring pipes remain unfrozen even in temperatures as low as -50°C." These products are easy to operate, simple to install, and widely suited for use in cold-region water supply, solar energy, and fire protection pipelines. They represent a significant advancement over traditional anti-freeze methods like wrapping insulation materials or letting water flow continuously, effectively preventing pipes from freezing and bursting altogether.