Duckbill Check Valve is a cost effective way to control back pressures from sewage treatment plants, outfalls and tidal operations. They are a fully passive flow device requiring neither maintenance nor any outside sources of power or manual assistance to operate.
Flange Duckbill Check Valves are designed to bolt directly to existing flanges or new installations, flanges are drilled BS EN 1092 standard. Other drilling standards are also available upon request. The Flange Duckbill Check Valves can be installed in either vertical or horizontal application.
This is the duckbill valve for an UAE client. Ususlly, the middle east client need to supply these special documents: Mark or sticker "MADE IN CHINA"on the materials&plywood case; supply the origin of certificate and commercial invoice by CCPIT; other docements if the client request. Hope we note it and delivery the materials go well.