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1 laboratory trolley, 2 drain valve, 3 water connection, 4 shut-off valve, 5 pressure vessel with cushion of air, 6 control unit, 7 safety valve, 8 solenoid valve, adjustable closing time, 9 solenoid valve, constant closing time, 10 electronic pressure transmitter, 11 variable-area flowmeter,
12 manometer, 13 spiral pipe 60m |
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