Overpressure air damper

Tender specification PVC HOKA PVC back flow damper plastic fitting round with interior stop for connecting pipes in an exhaust system by welding process. as self-actuating lamella shutter valve, lamella of PVC, for montage in vertical pipeline Socket inside diameter on the basis of DIN 8074, manufacturing process: made of semi-finished products . Possible negative overpressure upon request according to mechanical, chemical and thermal load. Maximum flow velocity 10 m/s. Tender specification PVC white HOKA PVC white back flow damper plastic fitting round with interior stop for connecting pipes in an exhaust system by welding process. as self-actuating lamella shutter valve, lamella of PVC, for montage in vertical pipeline Socket inside diameter on the basis of DIN 8074, manufacturing process: made of semi-finished products . Possible negative overpressure upon request according to mechanical, chemical and thermal load. Maximum flow velocity 10 m/s. Tender specification PE-HD HOKA PE-HD back flow damper plastic fitting round with interior stop for connecting pipes in an exhaust system by welding process. as self-actuating lamella shutter valve, lamella of PVC, for montage in vertical pipeline Socket inside diameter on the basis of DIN 8074, manufacturing process: made of semi-finished products . Possible negative overpressure upon request according to mechanical, chemical and thermal load. Maximum flow velocity 10 m/s. Tender specification PP-H HOKA PP-H back flow damper plastic fitting round with interior stop for connecting pipes in an exhaust system by welding process. as self-actuating lamella shutter valve, lamella of PVC