Already obtained national patent
With its anti top and bearing two functions
Size is larger, achieve 186mm
Wedge type universal carvalho is mainly used in oil field with pressure homework device and oilfield, minor repairs underground work, with its anti top and bearing two functions, size is larger, achieve phi Φ186mm, within the tubing spool big wellhead head can smoothly through. Because it is linear motion, wedge type carvalho tooth semi-manipulator tubing without self-tightening function, but in no condition all can close and open, very convenient, its power source can borrow the hydraulic fountain homework oil socket wrench, just do a small operation box power sharing can be realized. When the underground without pressure can be as bearing carvalho use. When the underground pressure is on channeling phenomenon, but as waterproof roof carvalho use. Universal carvalho has four kinds of models:
This is 4 type, type 4 for double flange.
Use it can reduce the labor intensity, and ensure the safety in production.
The main technique parameters:
Prevent jacking force:500t
Accord with API standard