FIELD: testing equipment engineering.
SUBSTANCE: to achieve result in the hollow of closed ball valve, controlled stationary gas outflow is formed. Gas flow is measured for the outflow. Full pressure in ball valve hollow is measured during controlled stationary outflow of gas from ball valve hollow and without gas outflow. Pressure at input and output of ball valve is determined and gas flow-over through ball valve is calculated.
EFFECT: improved productiveness.
2 cl, 1 dwg
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