| 摘要 |
A BALL CHECK VALVE (10) COMPRISING OF A CONDUIT BODY (12) A CHAMBER BODY (14), A BALL (20) WITH AN APERTURE (26) THERETHROUGH, A LOCK BARREL (34) WHEREIN THE BALL IS ALIGNABLE FROM A FIRST POSITION WHERE LIQUID IS FLOWABLE THROUGH THE BALL TO A SECOND POSITION WHERE LIQUID IS IMPASSABLE THROUGH THE BALL. THE BALL IS ALIGNABLE FROM A FIRST TO A SECOND POSITION BY THE INTRODUCTION OF A PENTAGONAL ALLEN KEY ONTO A PENTAGONAL BORE (30) IN THE BALL (10) AND ROTATING THE ALLEN KEY. (FIG. 1)
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