Safety device for drinking water mains - comprises water tank with input controlled by filling level and free outlet
DE4010817A1
Grid floor with slit perforations - is used for cattle stalls and has part of grid that can be folded up for easier cleaning
DE3804158A1
Separating apparatus
DE3804156A1
Cover, in particular for manholes arranged in streets, roadways or the like
DE3410865C1
A rainwater inlet which can be blocked in order to prevent overloading of a sewerage system
DE3330088A1
Vessel, drainable by a pump optionally operating as an agitating and conveying means, for separating off sink material and float material, in particular hardening fats, from waste water
DE3330087A1
Vessel, which can be emptied by a pump optionally operating as a stirring and transport means, for the separation of settling matter and floating matter, in particular solidified fats, from waste water
DE3313458A1
Lifting plant, serving as a backflow preventer, for sewage
DE2932534A1
House floor or ground drain odour lock - has movable plate on grating to open or close slits
DE2932535A1
Ceiling or floor drainage system odour lock - has valve weight breaking link between grating and outflow pipe sockets
DE2714626A1
Waste water drainage unit for low lying rooms - has automatic non-return valve and pump ensuring full protection of room
DE2558654A1
Sewage pump for underground collection chamber - has removal port in chamber wall below second port for pump pressure inlet
DE2526032A1
Water raising device for waste water reservoir - has pressurised pumping system with chambered base and lower float valve
DE2519453A1
Flexible pipe connection with flange ring coupling - has axially compressed O-ring to produce clamping force against internal seat
DE2516833A1
Support for pipe passing through concrete wall - adapts to walls of any thickness and seals against moisture
DE2429470A1
Frame for manhole covers and road drains - is made of cast iron and small amount of concrete in cavity in lid
DE2424754A1
Framework for manhole closures etc. - has two part cast iron top and concrete base construction with cutout sections to ease removal
DE2342944A1
Shut-off valve for drain water lines - head with triangular webs tapering to middle section is fixed to valve surface
DE2020685A1
Facility for the promotion of domestic, commercial and municipal waste water
