A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A BACKFLOW PREVENTER, A HOSE COUPLING OF A HYDRANT AND A HYDRANT
A backflow preventer adapted for installation in an inner conduit of a hose coupling of a hydrant is disclosed. The backflow preventer contains a non-return device having a closing body, a seal seat, and a resetting device. The resetting device is adapted to resiliently pretension the closing body into sealing engagement against the seal seat.
A BACKFLOW PREVENTER, A HOSE COUPLING OF A HYDRANT AND A HYDRANT
A backflow preventer adapted for installation in an inner conduit of a hose coupling of a hydrant is disclosed. The backflow preventer contains a non-return device having a closing body, a seal seat, and a resetting device. The resetting device is adapted to resiliently pretension the closing body into sealing engagement against the seal seat.
A BACKFLOW PREVENTER, A HOSE COUPLING OF A HYDRANT AND A HYDRANT
FLURY CHRISTOPH (author)
2021-11-04
Patent
Electronic Resource
English
A BACKFLOW PREVENTER, A HOSE COUPLING OF A HYDRANT AND A HYDRANT
| European Patent Office | 2020
FIRE HYDRANT SECURITY INTEGRATED FLOW CONTROL/BACKFLOW PREVENTER INSERT VALVE
| European Patent Office | 2016