YFZ-A type two-stage cementing device for the internal closed structure, by gravity plug to open the circulation hole, shut off the stopper to shut down the loop to close the loop down.
Features
1. The use of closed structure, can be achieved after the closure of a permanent self-locking.
2. Open, close the action, there is no small cavity liquid compression problem.
3. The inner diameter of the upper and lower fittings is the same as the inner diameter of the bushing, but less than the inner diameter of the bushing. When the bushing is operated, the bushing can be effectively protected to prevent damage.
4. All attachments are made of rubber / aluminum material with good drillability, anti-rotation mechanism and convenient drilling.
5. With a replacement plug open, can be used for continuous cementing operations.
Technical Parameters