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3.6.3. Installation of the sensing probe into the hot tap valve
The hot tap valve allows for the instalment and removal of the sensing probe under pressure, without inter-
rupting the process flow.
Operate the hot tap valve only with the hand, without tools!
Functionallity:
Position OPEN - MEASURE: The sensor head is immersed into the pipe.
Position CLOSE - SERVICE: The hot tap valve pressure tight closed. You can remove the sensor probe.
•
Turn the hot tap valve in position CLOSE - SERVICE and mount the sensing probe in the hot tap
valve in such a way that the alignment pin fits in the recess on the sealing cone.
•
Screw the retainer nut by hand so far that a certain resistance is noticeable.
•
Check the correct installation position of the flowmeter. The alignment pin must fit in the recess on
the sealing cone.
•
Tighten the retainer nut by hand. Tightening by hand should be sufficient. However, if the seal is
not leak tight carefully tighten the nut with an appropriate tool a bit further.
•
Turn the hot tap valve in position OPEN - MEASURE.
•
The mechanical installation of the flowmeter is therewith completed.
OPEN-MEASURE
CLOSE-SERVICE