Overview
The Belimo EXT-B2050-PWV-NPT+CQKB24-RR is a 2-way potable water valve assembly featuring an electronic fail-safe actuator configured for normally closed position. Engineered for safe, dependable flow control in drinking water systems, it automatically closes off flow upon loss of power.
Features
- Electronic fail-safe technology automatically drives valve to normally closed position on power failure
- Suitable for potable water installations and hydronic systems
- Durable DN 15 valve body with internal NPT thread connections
- Direct mounting actuator for streamlined installation
- Low power consumption during holding state
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
- Control Type: On/Off
- Fail-Safe Position: Closed (Normally Closed)
Applications
- Automated shutoff in potable water heating and distribution lines
- Domestic water supply isolation where fail-close security is required
- Commercial and residential HVAC plumbing controls


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