| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lever float drain trap having a normally open type control valve and capable of varying the area of the opening. <P>SOLUTION: An inlet 1, a valve chamber 6 and an outlet 2 are formed in a casing constituted of a body 3 and a cover body 4. A valve seat 9 opened with a first and second valve ports 7 and 8 where the valve chamber 6 communicates with the outlet 2 is formed below the valve chamber 6. A float 12 is connected to a lever 11 rotating around an oscillating shaft 10, and a first and second valve elements 18 and 19 take-off and seating on the valve seat 9 are connected to the lever 11. A stopper 20 that regulates the oscillating lower limit of the lever 11 is arranged in the valve chamber 6 and the position of the stopper 20 which abuts on the lever 11 is varied, thereby preventing the valve elements 18 and 19 from being seated on the valve seat 9 and also allowing the opening ratio of the valve openings 22 and 23 to be changed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
