External clamping type sensor was installed successfully is what reason?

1 ball valve base welding process must avoid slag, porosity, water seepage phenomenon;

2 two ball valve base welding must be guaranteed in the same shaft surface, in order to prevent the ultrasonic signal receiving is not ideal;

 3 open hole ball valve inner iron impurities must be clean, to prevent the sensor probe into thread gluing, die appear stubborn phenomenon;

4 must guarantee that the two in front of the sensor of ultrasonic signal emitting surface relative (i.e. two sensor into the line of the hole at the same time the upward or downward );

5 sensor after the completion of the installation will tighten the lock nut, to prevent loosening of sensor;

6 connected lines must be junction box glue, screwed sealing cover, to prevent water;

7 sufficient working space, the outer wall of the tube wall or wall distance horizontal distance of at least 700mm;

8 to determine the pressure of the pipeline. The following 1.6MP can open hole;

9 hole when the attention of electric power plug from the ground, lest water is sprayed onto the socket of danger;

10 After holes, with the wrench to open the valve to discharge water, inside the iron out, preventing damage of probe rod;

11The open hole pipeline heating time, if it is possible to reduce the boiler temperature, and then open the hole to prevent burns.