Back pressure valve and feeding and taking out tools
The back pressure valve and the back pressure valve installation and extraction tool can be used together to install and take out through the Christmas tree, so as to quickly and safely control the bottom hole pressure. The back pressure valve is divided into one-way and two-way, and adopts special short tooth trapezoidal thread, which has high strength, is not easy to glue, and has long service life.
The tool for feeding and taking out the back pressure valve is a tool for installing or recovering the back pressure valve under pressure.