FIELD: pipe-line equipment. SUBSTANCE: shut-off element in the form of torus is installed in body on rod for rolling over its whole length filled with compressed gaseous medium and communicating with movement mechanism. Rod has holes and is enveloped with shoulders. Movement mechanism is manufactured in the form of nut screwed on to body and interacting with shoulders. EFFECT: simplified design. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CLOSING DEVICE | 1990 |
|
RU2020346C1 |
| SHUT-OFF DEVICE | 1990 |
|
RU2015437C1 |
| VALVING UNIT | 1990 |
|
RU2016313C1 |
| SHUT-OFF DEVICE | 1990 |
|
RU2015439C1 |
| CUT-OFF DEVICE | 0 |
|
SU1815454A1 |
| SHUTOFF DEVICE FOR PIPELINE BLOCKING | 2004 |
|
RU2267046C1 |
| SHUT-OFF DEVICE | 1990 |
|
RU2015436C1 |
| SHUTOFF DEVICE FOR PIPELINE BLOCKING | 2004 |
|
RU2267045C1 |
| CUT-OFF DEVICE | 0 |
|
SU1815453A1 |
| CUT-OFF DEVICE | 0 |
|
SU1815452A1 |
