Overview
The Belimo EXT-B2050-PWV-NPT+CQKB24-S-LL is a 2-way potable water valve assembly equipped with an auxiliary switch and an electronic fail-safe actuator. Designed for normally open operation, it provides status feedback for building automation controls while maintaining clean water safety standards.
Features
- Built-in SPST auxiliary switch for position signaling and control interlocking
- Electronic fail-safe mechanism ensures normally open position during outages
- Heavy-duty DN 15 internal thread construction
- Approved materials for potable water applications
- Dependable on/off control with low operating noise
Specifications
- Valve Size: DN 15 [1/2 inch]
- Valve Type: 2-way Potable Water Valve
- Connection: Internal Thread (NPT)
- Pressure Rating: 230 psi
- Fluid Temperature Range: -4…212°F [-20…100°C]
- Nominal Voltage: AC/DC 24 V
- Auxiliary Switch: 1 x SPST
- Control Type: On/Off
- Fail-Safe Position: Open (Normally Open)
Applications
- Potable water system control with interlocking equipment requirements
- Commercial building domestic water shutoff and monitoring
- Hydronic heating and cooling systems needing status feedback


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