3
Tuffy Liquid Level Control with Pneumatic Switch
1.0
Installation
This section provides detailed procedures for properly
installing the Tuffy Liquid Level Control.
Caution:
If equipment is used in a manner not specified by
manufacturer, protection provided by equipment
may be impaired.
1.1
Unpacking
Unpack the instrument carefully. Inspect all units for dam-
age. Report any concealed damage to the carrier within 24
hours. Check the contents of the packing slip and report
any discrepancies to Magnetrol. Check the nameplate model
number to be sure it agrees with the packing slip and pur-
chase order. Check and record the serial number for future
reference when ordering parts.
Model Number
Serial Number
1.2
Before You Begin
1.2.1 Site Preparation
1. Ensure that the length and inside diameter of the mounting
nozzle are sized correctly to allow for switch actuation at
design levels. Refer to Figure 1.
2. Ensure that the mounting nozzle or coupling is within 3°
of horizontal. If mounting the Tuffy in an external cage,
ensure that the cage is mounted within 3° of horizontal
and that the top/bottom piping is within 3° of vertical in all
directions.
3. Ensure that the area is free of metallic particles which might
be attracted to the magnet holder/counterbalance and inter-
fere with the function of the Tuffy.
1.2.2 Equipment and Tools
No special equipment or tools are required to install the
Tuffy Liquid Level Switch. The following items are recom-
mended:
• Wrenches, flange gaskets and flange bolting appropriate for
process connection(s).
• Pipe wrench
• Level
Figure 1
1/4" NPT
inlet (A)
1/4" NPT
outlet (C)
3.00" maximum
nozzle length
1/4" NPT
inlet (B)
Float must
clear inner
tank wall
Wrench flats
Serial number tag