Williams Controls WM-81 Adjustable Air Pressure Switch
#WIM111237
Product Overview
Air Pressure Switch, Adjustable, For Compressors - Electronic Gas, Motor Control, HVAC Equipment, Well Water Pumping systems, Process equipment
Features & Benefits
- The WM-81 is a non-grounded switch that responds to a drop of air pressure below a preset level.
- Adjustable pressure switch feature allows modification of the actuation setting.
- Designed for low-voltage, low-current applications.
- Frequently used to activate warning lights or buzzers when low pressure exists in vehicle air brake systems.
- Not UL approved.
- Provides reliable switching for pressure, shutdown, or control to ensure devices operate effectively.
- Consists of a switch contact and a pressure sensor that activates at a set switch point.
- Ideal for monitoring, controlling, and notifying in various industrial and automotive applications.
- Used extensively in hydraulic and pneumatic systems including forklifts, off-road equipment, trucks, trains, welding machines, plastic molding injection, and medical oxygen delivery systems.
- Can start pumps or compressors at predetermined pressures.
- Consider housing options, exposure to chemicals, and explosion-proof requirements when selecting.
- High precision for extreme accuracy.
Specifications
| Type | Adjustable |
| Application | Compressors - Electronic Gas, Motor Control, HVAC Equipment, Well Water Pumping systems, Process equipment |
| Includes | Switch contact and pressure sensor |
| Pressure Rating | Adjustable pressure switch feature allows modification of the actuation setting |
| Standards | Not UL approved |
| Temperature Rating | High temperatures |
| Voltage Rating | Low-voltage, low-current applications |
| Product Category | Air Pressure Switch |
| Weight | 1 lbs |
Interchanges & Equivalent parts:
| U27WM81 |
| WIMWM81 |
| WM81 |




















