Description
The A.J. Antunes 8224212021 is a genuine OEM air differential pressure switch from the Antunes SML series. It is designed to sense changes in air pressure and actuate a control circuit via a snap action SPDT contact when a predefined differential is reached. This model operates over a range of 0.05 – 9.0 inches water column (W.C.), making it suitable for low pressure airflow detection in commercial HVAC systems, industrial equipment, and safety interlock controls. It has 1/4″ compression fitting connections, sturdy mounting features, and a compact design suitable for installation in air handlers, duct systems, and related applications.
Key Features
- Pressure range: 0.05 – 9.0″ W.C. differential
- SPDT (single pole double throw) switch contact
- Two 1/4″ compression sample line connections
- Durable enclosure with mounting feet for secure installation
- Operating environments typical of HVAC and industrial pressure monitoring
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