Tongue Plate Type Float Collar Float

self fill-uptype float collar float shoe
-It can automatic and adjustable filling when put the casing pipe, apparently reducing the pressure acting on the bottom.
-This type automatic self fill-up type float collar and float shoe through the transformation of a single valve to finish the automatic filling. Setting a steel ball groove on the valve rod,loading the ball before going down, the ball stick in the body, so that the spring can not be reset, keeping the upper and lower portion of the valve is transparent. Thus, The liquid of the well can enter the casing pipe which on the top of float collar and float shoe in the process of going down well.keeping the balance pressure inside and outside the casing. When there is downward pressure on the valve rod, to make ball fall, spring return, converted

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