Model-FJZ-Y-Mechanical-Stage-Collar

Features

1.Inner closing structure is applied to realize permanent self-locking after closing.

2.No fluid trapping or compression will occur during opening and closing.

3.All accessories are made of rubber/aluminum material with good drillability,and are designed with anti-rotary mechanism,which make it easily to be drilled out.

4.Equipped with pumping-down opening plug,it can be used in the continuous dual stage cementing operations.

Property Parameters