FIELD: water supply systems; protection of rooms against flooding. SUBSTANCE: shut-off device is provided with vertical branch pipe and shut-off member made in form of float. Branch pipe is provided with drain valve. Outer surface of float is fully spherical or is provided with flat sections. Hole of adapter is oval or round in cross-section and is fitted with chamfer providing for untight conjugation with the shut-off member closed. EFFECT: enhanced reliability. 2 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LYSIMETER | 2017 |
|
RU2641193C1 |
| DRAIN CUT-OFF VALVE | 1990 |
|
RU2018759C1 |
| DRAIN UNIT | 1991 |
|
RU2011768C1 |
| COMBINED TOOL FOR SIMULTANEOUS BORING AND EXPANDING OF OPENINGS | 1993 |
|
RU2074085C1 |
| MIXER | 1996 |
|
RU2100532C1 |
| LIQUID METERING PUMP | 1993 |
|
RU2095760C1 |
| FLUSHING TANK | 1991 |
|
RU2020209C1 |
| CUT-OFF REGULATING DEVICE | 1989 |
|
RU2020344C1 |
| DEVICE FOR GATHERING PETROLEUM PRODUCTS FROM WATER SURFACE | 1999 |
|
RU2157871C1 |
| LEVEL INDICATOR | 1992 |
|
RU2023988C1 |
