Dwyer 1910-1 Differential Pressure Switch
1. Product Overview
Type: Mechanical differential pressure switch, used to monitor the pressure difference of gas or liquid and trigger the switch action.
Typical Applications:
HVAC system (filter clogging alarm, fan control).
Industrial process control (pump protection, liquid level monitoring).
Clean room or laboratory pressure monitoring.
2. Key Features
Pressure range: To be confirmed according to the specific model (e.g. 0.1~10" H₂O or higher, common in 1910 series).
Switch type: Single-pole double-throw (SPDT) micro switch, normally open (NO)/normally closed (NC) optional.
Electrical rating: Typically 10A @ 120/240VAC (specific reference manual).
Accuracy: ±1~2% full scale (adjustable set point).
Media compatibility:
Gas: air, inert gas, etc.
Liquids: non-corrosive fluids such as water and oil (need to confirm the sealing material).
Material:
Housing: aluminum alloy (anti-corrosion coating optional).
Diaphragm: nitrile rubber (NBR) or other media-resistant materials.