SIAM DU-1, Руководство по эксплуатации

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Well sounders «DU-1»

Gradually, avoiding a pneumatic or hydraulic shock open the valve
until the gas starts entering the gage. Stop opening the valve until
the pressure in the well and in the work volume of the gage levels
off; afterwards, open the valve fully. Control the process of
pressure equalization on the terminal indicator.

In order to avoid leaks in thread connections, use Р-402 dope (ТУ
38.101.330-73) or ФУМ 0.1х20 sealing band (ТУ6-05-1388-86).
7.3. Well sounder Removal

Switch off the device.

Close the valve of the offset.

Open the outlet valve of the well sounder and bleed off the
excessive pressure from the work volume.

Unscrew the gage and remove it from the elbow. Drain off
condensate from the gage work volume, clean the thread segment
and put the gage into the bag provided.

Close the elbow with an end cap.