Oilfield Downhole Check Valve 2 7/8" For API ESP Equipment
The check valve is installed about two to three joints above the ESP pump to maintain a full liquid column in the tubing string during equipment shut down period. The check valve is designed and used to prevent backflow through a pump, which uses a seat and plunger to block downward flow in the tubing string.. The check valve is a shuttle type poppet valve arrangement with a spring return. In installation without a check valve, it must be ensured that the tubing string completely drains back to the well through the pump before the motor is started again
Technical Parameter of Check Valve
Name | Accessory | Material | Remark |
2 3/8", 2 7/8", 3 1/2" Check Valve Assembly | Valve Body | 316SS | Thread Standard: API 8RD EUE |
Circlip for Hole | |||
Spider Stop. | 316SS | ||
Valve Clack | Ni-Resist 1 |