| 摘要 |
A low fluid pressure check valve with a one-piece body having a supple diaphragm with a pair of integral spaced lugs extending from one face thereof. A pair of flexible lips of an oval shaped tube which is integral with the diaphragm extend between the lugs to provide a fluid passage through the body of the valve. Displacement of the diaphragm moves the free ends of the lugs toward and away from each other to engage and disengage the lips and thereby close and open the fluid passage.
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