FIELD: machine building.
SUBSTANCE: in check valve containing a body, shutoff element and seat, the compressed spring is located across stroke of the shutoff element, and the shutoff element pressing to the seat is ensured by the compressed spring deflection.
EFFECT: invention ensures increased energy efficiency of the submersible pump equipment.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CHECK VALVE | 2017 |
|
RU2653201C1 |
| DOWNHOLE PUMPING UNIT | 2020 |
|
RU2732650C1 |
| HYDRAULIC-DRIVEN PUMP SET | 2012 |
|
RU2493434C1 |
| CENTRIFUGAL SEPARATOR OF SOLID PARTICLES | 2008 |
|
RU2387884C1 |
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|
RU2786177C1 |
| HYDRAULIC PUMP UNIT | 2017 |
|
RU2656511C1 |
| PUMP PLANT | 2012 |
|
RU2506454C1 |
| PUMP PLANT | 2012 |
|
RU2506458C2 |
| CENTRIFUGAL GAS SEPARATOR | 2013 |
|
RU2530747C1 |
| PUMPING PLANT | 2013 |
|
RU2515693C1 |
