Instructions for Use
– SCHMIDT
®
Flow Sensor SS 20.600
Page 17
Mounting with compression fitting
The compression fitting is mounted using a G½ or R½ external thread.
Typically, a bushing is welded as a fitting onto a bore in the medium-guid-
ing system wall. In most applications, these are pipes which are taken as
an example for the description of the mounting procedure below (see Fig-
ure 3-6).
Figure 3-6
L
Probe length [mm]
D
A
Outer diameter of pipe [mm]
SL
Length of the weld-in sleeve [mm]
E
Sensor tube setting length [mm]
AL
Projecting length [mm]
R
Reference length [mm]
Installation process:
Depressurize the system for measurements with overpressure
media and mount the pressure protection kit.
Drill a mounting bore in a pipe wall.
Weld the pipe union with an internal thread G½ or R½ in the center
above the mounting opening on the pipe.
Recommended length of the pipe union: 15 ... 40 mm
Plug the holding bracket of the pressure protection chain into the thread
of the compression fitting.
Screw the threaded part of the compression fitting tightly into the pipe
union (hexagon AF27).
Observe the correct seat and alignment of the chain bracket.
Check if there is an O-ring seal available and if it is fitted tightly.
Loosen the spigot nut of the compression fitting so that the sensor
probe can be inserted without jamming.
