KROHNE UFM 800 Hot-Tap EN - Manual (Page 4)

01/2001 Installation and operating instructions UFM 800 W / UFM 800 C 4
M O U N T I N G P R O C E D U R E
1. Install the "Weld-on Sockets” (4 pieces) on the pipe, inner and outer welding is required.
Use the dimensions as stated on the calculation sheet for the Dn900 and Dn1500 pipe. The accuracy and the functionality of the total
installation depend on the accuracy by which the welding is done.
A C C U R AT E W E L D I N G I S E X T R E M E LY I M P O R TA N T
N O D E V I AT I O N F R O M C A L C U L AT E D F I G U R E S A R E A L L O W E D
2. Connect the ball valve and the spool piece (Dn50 Pn16 flanges) on the "weld-on socket” (ball valve bottom down).
3. On top of this construction the drilling machine has to be installed. Hot-tapping has to be done by a specialized company. The size of the
drilled hole has to be 46 mm.
4. When the drilling is done retract the drill and close the valve, then remove the drilling configuration.
5. Install the complete Ultrasonic sensor piping on top of the flange (sensor has to be completely retracted). Install the sensors as described in
the drawing, the sensor numbers are marked on the coax cable.
6. Open the valve and push the sensor rod into the pipe until the marker (saw cut).
7. The window side is marked with a "w” on the sensor rod, this is needed for positioning the sensors opposit each other for making the final
allignment easier.
8. When all four sensors are mounted, allign the sensors by using the procedure as described in item 4.0 of the UFM 800 manual
(no. 7.30787.32.00).
9. When allignment is completed, weld the sensor rod onto the fixation spool piece.