Downloads CATALOGS AND BROCHURES ▼ Product catalogue EkoWodrol Innovations | PDF pencil-2 3D MODELS & DWG DRAWINGS ▼ Ball check valves ESK DN 32-300 | ZIP▼ Ball check valves ESL DN 32-150 | ZIP▼ Ball check valves ESK DN 65-100, DN 200 long version | ZIP▼ Ball check valves COMBI | ZIP▼ INOX columns | ZIP▼ Cast iron columns | ZIP CERTIFICATES ▼ CE Certificate of EPP pneumatic pumping station▼ CE Certificate of EDP dry pumping station▼ Certificate of Ball check valves▼ National Institute of Hygiene Certificate – ball check valves▼ National Institute of Hygiene Certificate – EKON, EKOS columns▼ Utility Property Declaration of Ball Check Valves USER MANUALS ▼ User manual of COMBI ball check valves▼ User manual of ESK ball check valves▼ User manual of EKON EKOS columns PUBLICATIONS ▼ Back-pressure ball valves for contaminated liquids▼ Back-pressure valves for faecal sewage pumping stations I▼ Back-pressure valves for faecal sewage pumping stations II▼ Back-pressure valves for faecal sewage pumping stations III▼ Back-pressure valves for faecal sewage pumping stations IV▼ Back-pressure valves for faecal sewage pumping stations V▼ Safety and hygiene aspects of the operation of a sewage transportation system