Four sets of DN150 carbon steel double layer ash discharge valves have successfully completed full factory performance testing and are ready for delivery to clients. Constructed from Q235B carbon steel, these valves are engineered for working conditions involving solid particulate media including dust and furnace ash. Every unit has passed rigorous air tightness testing and repeated opening-closing cycle tests, achieving zero leakage. Complete test videos were delivered to clients throughout the inspection process, and the excellent air-locking sealing performance gained full recognition.

Also named double flap ash discharge valve, double layer air lock valve, the double layer ash discharge valve serves as essential air-locking discharging equipment for dust hoppers, pneumatic ash conveying systems, metallurgical kilns, waste incineration plants and building material powder production lines. Equipped with alternately opening and closing upper and lower flaps, one flap remains sealed during discharging. The design blocks air circulation, enables continuous ash discharge while maintaining system negative pressure, and prevents flue gas cross flow and pressure loss.

This DN150 model comes with remarkable strengths. The valve body is integrally fabricated from Q235B carbon steel featuring high structural strength and strong anti-erosion capacity against dust. Precision-machined sealing surfaces of flaps ensure stable operation and extended service life. Suitable for dry ash, mineral powder, flue dust and other dry granular materials, the valve supports long-term continuous automatic operation for industrial production lines.

Widely adopted in thermal power dust removal, cement manufacturing, metallurgy, solid waste incineration and chemical dust collection projects, the valve undertakes key tasks of ash hopper discharging and air sealing. Single-layer discharge valves often suffer air leakage which lowers dust collector efficiency. The double-layer air locking structure fundamentally eliminates air leakage risks to guarantee stable operation of the whole dust removal system.

All finished double layer ash discharge valves undergo standardized factory inspection, including switch cycle tests, air tightness detection and pressure inspection. Full test videos are available for client review. We provide industrial powder discharging and air locking valves and support customized sizes and materials for double layer ash discharge valves. Inquiries from engineering partners are warmly welcome.