FIELD: valve industry.
SUBSTANCE: invention relates to valve industry, in particular, to pipeline valves of power plants, characterized by difficult operating conditions. The two-shut-off valve contains a body with axial and side branch pipes, main and additional shut-off elements interacting with the sealing seats of the body and kinematically connected to the outer and inner stems controlled by independent drives, and a profile bushing installed in the axial branch pipe. At the lower outer end of the main shut-off element, a thrust ledge is made, which can interact with the support ledge, made at the inner end of the additional shut-off body. A support element is installed on the profile sleeve, which has the ability to interact with an additional locking element.
EFFECT: invention is aimed at ensuring a fixed location of the shut-off elements in the medium flow with the creation of the required design forces, which improves the hydraulic, noise and vibration characteristics.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TWO-STOP VALVE | 2020 |
|
RU2749288C1 |
| DOUBLE SHUTOFF VALVE | 2022 |
|
RU2791379C1 |
| TWO-SHUT-OFF VALVE | 2021 |
|
RU2773408C1 |
| TWO-WAY VALVE | 2021 |
|
RU2764950C1 |
| TWO-WAY SHUTOFF VALVE | 2016 |
|
RU2673922C2 |
| STOP VALVE | 2022 |
|
RU2779815C1 |
| COMBINED DRIVE OF DOUBLE-LOCK VALVE | 2019 |
|
RU2729594C1 |
| COMBINATION VALVE | 2021 |
|
RU2775327C1 |
| DOUBLE-CLOSURE VALVE | 2019 |
|
RU2756951C2 |
| TWO-LOCK VALVE | 2019 |
|
RU2711796C1 |
