FIELD: machine building.
SUBSTANCE: invention relates to pipeline valves and accessories, to cutting off devices incorporating shut-ff elements sliding along the seat surface shaped as a body of revolution and is designed to be used at the gas production site processing lines for shutting off and controlling working medium flow rate. Because of the opening of the shut-off-and-control element, the seat sealing element is unloaded, and there is no pressure difference thereat, while the total pressure difference is uniformly distributed between the three stages of control, the valve reliability and life boast notable increase.
EFFECT: higher reliability and longer life.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MULTIPURPOSE VALVE | 2007 |
|
RU2341713C1 |
| STOP AND CONTROL VALVE | 2007 |
|
RU2360168C1 |
| MULTIPURPOSE VALVE | 2003 |
|
RU2253788C1 |
| MULTIPURPOSE VALVE | 2007 |
|
RU2347128C1 |
| SHUT-OFF ADJUSTING VALVE | 2004 |
|
RU2279599C1 |
| STOP CONTROL VALVE | 2003 |
|
RU2255262C1 |
| VALVE | 2003 |
|
RU2250407C2 |
| MILTIPURPOSE VALVE | 2007 |
|
RU2336452C1 |
| STOP-CONTROL VALVE | 2004 |
|
RU2269051C1 |
| SHUTOFF-AND-CONTROL VALVE | 2007 |
|
RU2338942C1 |
