| 摘要 |
FIELD: batching of various substances soluble in technological liquid into this liquid. SUBSTANCE: hydraulic resistance of metering pump communicating chambers with metered substance and technological liquid extends in vertical direction. Distance between uppermost and lowest points of hydraulic resistance should be not less than 10.0 mm. This resistance can be implemented in the form of at least two separate parts with distance between them along vertical line equal to 10.0 mm or more. EFFECT: enhanced functional reliability of metering pump with simplified technique of its servicing. 1 cl, 1 dwg
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