A batch of customized stainless steel ventilation dampers have completed full‑scale production, surface finishing and factory inspection, ready to be shipped to overseas project sites. This delivery covers multiple sizes, including large‑size headless dampers DN1600 (PN1), DN400, DN315, as well as DN225 hand‑operated dampers. All main bodies are made of 316L stainless steel to meet demanding overseas working conditions.

Manufactured from 316L stainless steel, these dampers deliver outstanding corrosion resistance against flue gas and corrosive gas, widely applied in chemical industry, metallurgy, waste‑gas treatment and HVAC ventilation. For overseas projects with high humidity and slightly acid‑alkali media, 316L stainless steel effectively resists oxidation, extends service life and reduces spare‑part replacement frequency on site.

The large DN1600 headless damper features compact structure without protruding drive housing. With PN1 pressure rating, it realizes airflow regulation and shut‑off for large‑diameter pipelines. Medium‑small DN400 and DN315 headless dampers adopt integrated layout for easy pipeline installation. DN225 hand‑operated damper works without extra actuator for convenient on‑site manual adjustment.

Every unit has gone through surface polishing and strict inspection on sealing performance, shaft concentricity, rotation flexibility and flange dimension. The headless design avoids dust accumulation and lowers maintenance cost. Flange connection enables fast on‑site assembly. Rigorous welding ensures smooth and firm weld seams to prevent gas leakage and comply with safety standards for overseas engineering projects.

This bulk export order proves global clients’ recognition of Chinese‑manufactured industrial dampers. We focus on non‑standard custom ventilation valves, supporting customization on size, material and actuator type. Complete export documents such as technical drawings and inspection reports are available, to supply cost‑effective ducting solutions worldwide.