| 摘要 |
PROBLEM TO BE SOLVED: To provide a lever float type drain trap capable of preventing damage of a float. SOLUTION: A casing having a valve chamber 6 inside is constituted by fastening a cover body 4 to a body 3 having an inlet 1 and an outlet 2. A first valve port 7 and a second valve port 8 communicating the valve chamber 6 with the outlet 2 are formed in a lower part of the valve chamber 6. A rotary lever 11 is arranged around a rocking shaft 10 supported in the valve chamber 6. The float 12 floating and lowering in response to a liquid level in the valve chamber 6 is connected to the lever 11, and a first valve element 18 and a second valve element 19 opening-closing the first valve port 7 and the second valve port 8 are connected to the lever 11. A stopper member 20 is arranged under the lever 11 for abutting on the lever 11 when the lever 11 further rotates in the valve closing direction from a position for closing the first valve port 7 and the second valve port 8 by the first valve element 18 and the second valve element 19. A part 11a of the lever 11 abutting on the stopper member 20, is formed on the float 12 side more than the middle 11b between the center 12a of the float 12 and the center 10a of the rocking shaft 10. COPYRIGHT: (C)2009,JPO&INPIT
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