| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive check valve not to exert so much economical burden even by waste disposal at every one time use and besides reliably provide a reverse flow preventing function. SOLUTION: A high pressure fluid inlet 12 is formed in one end part of a hollow cylindrical body 11 formed of a material having elasticity and a high pressure fluid outlet 13 is formed in the other end part thereof. Pressure bearing surfaces 14 and 14 are formed on the outer peripheral surface on the high pressure fluid outlet 13 side of the cylindrical body 11. The high fluid outlet 13 is formed by a cut normally closed by elasticity of the material.
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