WATER LEVEL MONITORING DEVICE
PROBLEM TO BE SOLVED: To provide a water level monitoring device having wide flexibility and high executability. SOLUTION: A hydraulic backpressure valve 1 is equipped with sensors 12a, 12b guided by sensor guides 11a, 11b, and the level w of water for water seal in the hydraulic backpressure valve...
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Format: | Patent |
Sprache: | eng |
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