Featuring a double-eccentric structural design, the eccentric butterfly valve integrates shut-off, connection, and flow regulation functionalities, making it well-suited for meeting the versatile requirements of pipeline systems in urban water supply and drainage, building fire protection, metallurgical hydropower, and other industrial sectors. Its sealing surface is fabricated with stainless steel welding technology and paired with a dual-seal ring configuration, which not only resolves shaft hole leakage issues effectively but also enhances corrosion resistance. By leveraging flow field simulation and stress measurement technologies, the product’s performance metrics meet or exceed national standard requirements.

• High pressure resistance and long service life: Compared to midline butterfly valves, double eccentric butterfly valves are more resistant to high pressure, have good stability, and have a longer service life.
• Large flow rate: Reduced friction between the disc and seat significantly lowers component wear, extending the valve’s service life by 30-50% compared to concentric butterfly valves. The simplified structure facilitates easy disassembly, inspection, and replacement of wearing parts.
• Cost-Effective Large-Diameter Solutions: Offers a more compact structure, lighter weight, and lower manufacturing/installation costs compared to gate valves or globe valves. Ideal for large-scale infrastructure.
• Good sealing performance: The eccentric structure combined with the valve seat forms a built-in sealing structure, effectively avoiding air and water leakage.
• Simple structure: Composed of a small number of components, making it easy to maintain and repair.

Standard export wooden case packaging is used to ensure the safety of the valves during international transportation.

The double eccentric butterfly valves have a broad range of low-to-medium pressure applications (PN1.0–PN1.6MPa). They excel in handling room-temperature clean water, cooling water, and circulating water systems. Widely deployed in municipal water supply infrastructure, building piping networks, and fire protection systems.