| The
first consideration is the type of liquid, temperature
and pressure to which the switch will be subjected. Madison
manufactures liquid level switches in various styles,
in a variety of materials, to cover a broad range of conditions.
Following are some basic recommendations of how to select
the proper liquid level switch for your application. |
| MATERIAL |
APPLICATION |
| 316
Stainless Steel |
For
high temperature (to 200°C), high pressure (to 300
PSIG) and corrosive conditions. Commonly used in food
processing, medical, heating and cooling equipment. |
| Polypropylene
|
For
acidic conditions, such as found in electroplating and
metal cleaning. Another choice for lower temperature (to
105°C) food processing applications (Madison Company
uses only polypropylene which is FDA-approved for food
contact). Also a good choice for general purpose applications
in commercial or consumer appliances and equipment. |
Brass
& Buna-N
PBT & Buna-N |
The
selection for petroleum-based liquids, such as lubricating
oils, gasoline and diesel fuels. Widely used in storage
tanks of vehicles, generators, transmissions and hydraulic
systems. Other uses are in lubrication, recovery, refining
and fuel processing equipment. Please note: PBT is not
suitable for use in water above 65°C. |
| Kynar |
Chemical
and solvent resistant properties make this material a
problem-solver for many applications. Its high purity
nature is ideal for food handling and sensitive laboratory
or test equipment. |
|
|
 |
|
PBT
|
Stainless Steel
|
Polypropylene
|
|
