Overview
The Belimo 22WDP-532 is an active water differential pressure sensor engineered to deliver a 4…20 mA current signal over a 0 to 30 psi pressure range in hydronic HVAC systems.
Features
- Active 4…20 mA current output for distant control panels
- Stainless steel liquid-wetted parts for long service life
- NEMA 4 / IP65 rated rugged enclosure
- Suitable for water and water-glycol solutions
Specifications
- Pressure Range: 0 to 30 psi [0 to 2.1 bar]
- Output Signal: 4…20 mA
- Media: Water, water-glycol mixtures
- Enclosure Rating: NEMA 4 / IP65
- Supply Voltage: 24 V DC
Applications
- Pump differential pressure control in chilled and hot water systems
- Strainer and valve differential pressure tracking
- Long-run signal transmission to building management controllers


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