Running In And Pulling Out Devices For Back-Pressure Valves
The running in and pulling out device for backpressure valves is delivered together with all accessories necessary for well shutting-off jobs, fracturing and acidization.
The running in and pulling out devices allow the displacement of master valves, after the mounting of back-pressure valves.
The technology of well shutting-off by setting a back-pressure valve or a plug in the tubing hanger avoids well killing with drilling mud, this offering considerable economical and time advantages.
The back-pressure valves and plugs are designed to withstand the working pressure of the X-mas trees in which they are mounted.
The size ratings of the back-pressure valves and plugs are according to API sizes of the tubing string.
Constructive and technical characteristics
- max. working pressure: 700 bar
- stem diameter: 30 mm
- max. stem stroke: 4300 mm
|Hanger size||Inches||2 3/8||2 7/8||3 1/2||4||4 1/2|
|Nominal size of back-pressure valve or test plug||Inches||2||2 1/2||3||3 1/2||4|