| 摘要 |
PURPOSE: A check valve and method for manufacturing the same is provided to reduce manufacturing costs by simplifying the structure of the check valve, and to prevent the leakage of liquid. CONSTITUTION: A check valve includes a metallic valve body(1), and a hollow main valve body(6). The metallic valve body is integrated with a tapered valve seat(3) and a support unit(4) formed at both sides of a valve chamber(2). Tube connection units(5,5') are integrated at the outside of the valve seat and the support unit. The main valve body is installed in the valve chamber, and has a conical valve(7), a fluid passage(8), a support protrusion(9), and a guide(10). The guide is slidably inserted into the tube connection unit formed at the support unit side.
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