Anti -pollution reducing plug
The utility model provides an anti -pollution reducing plug, include: at least one first pressure release hole has been seted up to first plug, its circumference, and the first intercommunicating pore that link up with first pressure release hole is seted up to its axial, at least one second pressur...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides an anti -pollution reducing plug, include: at least one first pressure release hole has been seted up to first plug, its circumference, and the first intercommunicating pore that link up with first pressure release hole is seted up to its axial, at least one second pressure release hole has been seted up to second plug, its circumference, and its axial sets up the second intercommunicating pore that link up with second pressure release hole, second plug and the butt joint of first plug axial, and the external diameter of second plug is less than the external diameter of first plug. The utility model discloses an anti -pollution reducing plug can realize that the reducing uses, and with plug screw in oil pipe the time, the residual pressure in the oil pipe is let out in accessible pressure release hole, has both prevented the interior oily water of oil pipe splash polluted environment everywhere, the plug of being convenient for again install.
本实用新型提供了种防污染变径丝堵,包括:第丝堵,其周向开设有至少个第泄压孔,且其 |
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