SOR Vertical Displacer Top Mounted Series Level Switch User Manual
Page 7
Form 425 (08.12) ©2012 SOR Inc.
7/16
Multiple Switch Chamber Installation
Deviating from any of these recommendations may adversely affect
operation of the level switch by restricting liquid fl ow into the switch
chamber. The recommended dimensions leave adequate space for
isolation valves, fi ttings and insulation. Structural support (not shown)
must be provided for level switch chambers.
The header pipe diameter for three (3) or four (4) chambers needs to be two times
the process connection diameter. For 1” (25mm) process connections, the pipe
header must be 2” (50mm) in diameter. This includes pipe connecting the header
to the process, fittings, valves and other pipe equipment installed as part of the
header piping. Headers should be arranged to use one elbow or tee to connect to
the process pipe or tank.
Pipe connecting the header to individual chambers can be the same size as the
process connection on the switch chamber. Fittings and valve diameters must
also be equal to or greater than the process connection diameter. One elbow is
recommended to connect the level switch chamber to the header pipe.
Install each chamber so that the actuate or deactuate point is at the desired process
liquid level. Refer to catalog for set point locations.
Locate the header 8” to 16” (200mm to 400mm) away from the process tank.
Locate switch chamber process connection 12” to 18” (300mm to 450mm) away
from the header pipe.
Horizontal spacing of level switch chambers should be 6” to 12” (150mm to 300mm).
Drawing 0390737