| Customization: | Available |
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| After-sales Service: | One Year |
| Warranty: | One Year |
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The main body of the grading hoop is made of high-strength alloy, including a hydraulic drive system, an annular space sealing component, and an openable and closable flow channel. The device is installed at a specific position on the casing string and has a dual function: to maintain a closed state during the primary cementing stage, ensuring the integrity of the lower cement sheath; When graded cement injection is required, it can accurately open and form a circulation channel.
1. Anti.rotation mechanism prelecis ihe desing sleevefrom damage while driling out the opening andcloshgseals.
2. No fluid trapping while opening and dosing the ports.3. Al intemal panis are made of easily drilable material.4.A, Pump Don dpening Piug can be used for aconinuous wo siage cemening operahon.
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