Overview
The Belimo 22WDP-512 is an active water differential pressure sensor engineered for accurate pressure tracking in hydronic heating and cooling systems. It converts differential liquid pressure into a reliable 0…10 V analog signal.
Features
- Active 0…10 V analog voltage output
- Corrosion-resistant stainless steel housing for liquid media
- IP65 / NEMA 4 rated protection against dust and moisture
- Compact form factor with flexible mounting options
Specifications
- Pressure Range: 0 to 30 psi [0 to 2.1 bar]
- Output Signal: 0…10 V
- Media: Water, water-glycol mixtures
- Enclosure Rating: NEMA 4 / IP65
- Supply Voltage: 24 V AC/DC
Applications
- Differential pressure control across hydronic pumps and heat exchangers
- Variable speed pump control in commercial HVAC loops
- Pressure loss monitoring across hydronic strainers and chillers


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