Introduction
1) There are blind holes drilled inside the oil drain pin, with the hole end facing outward. There is a shear control groove at the outer diameter of the oil drain pin. Due to the smaller diameter of the oil drain valve body than the piston diameter, the plunger assembly will not touch the oil drain pin during normal operation;
2) When inspecting the pump, the pumping rod and plunger assembly are lifted out of the oil pipe. Simply drop the pumping rod from the wellhead into the oil pipe to break the hollow pin, allowing the crude oil in the oil pipe to leak into the annular space of the oil sleeve, achieving the oil drainage function.
Advantages
<p>1) There are blind holes drilled inside the oil drain pin, with the hole end facing outward. There is a shear control groove at the outer diameter of the oil drain pin. Due to the smaller diameter of the oil drain valve body than the piston diameter, the plunger assembly will not touch the oil drain pin during normal operation;<br style="box-sizing: border-box; overflow-wrap: break-word; word-break: normal; color: rgb(85, 85, 85); font-size: 18px; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"/>2) When inspecting the pump, the pumping rod and plunger assembly are lifted out of the oil pipe. Simply drop the pumping rod from the wellhead into the oil pipe to break the hollow pin, allowing the crude oil in the oil pipe to leak into the annular space of the oil sleeve, achieving the oil drainage function.</p>
Applicable mines
<p>Used for oil leakage from the tubing column during pump inspection operations, reducing environmental pollution at the well site and improving the working environment for workers.</p>
