Drum level sensors were designed to mount in the 3/4″ NPT bung fitting in standard drums. These float switches are typically used for high or low level indication. A combination of both high and low levels on one stem is also available.
NMS offers drum sensors constructed of Brass with Buna floats, All Stainless Steel, Stainless Steel with Buna or Poly Pro floats and PVC with Poly Pro floats. This covers a wide range of chemicals, oils and other liquids. Custom units can always be fabricated to fit a specific need.
Below is a sample grouping of some of our more popular models.
Specifications
| Brass | Stainless | PVC | |
| Mounting | 3/4″ NPT | 3/4″ NPT | 3/4″ NPT |
| Stem Material | Brass | Stainless | PVC |
| Float Material | Buna-N | Polypropylene | Polypropylene |
| Other Wetted Parts | Beryl-Copper, Epoxy | Epoxy | Epoxy, Nylon |
| Pressure | 100 psi max | 150 psi max | 150 psi max |
| Temperature | 150°F max | 200°F max | 200°F max |
| Float S.G. | .55 | .80 | .80 |
| Available Switches | 10 Watt, 100 Watt | 10 Watt | 10 Watt |
| Electrical Connection | PVC Cable | PVC Cable | PVC Cable |
Standard models for 55 gallon drums
| Brass & Buna-N | Stainless & Polypropylene | ||||
| Hi & Low Level | Low Level | Hi Level | Hi & Low Level | Low Level | Hi Level |
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| P/N 80156 | P/N 80157 | P/N 80158 | P/N 80159 | P/N 80160 | P/N 80161 |
| All Plastic Models (PVC and Polypropylene) | P/N 80162 | P/N 80163 | P/N 80164 | ||