Product Description
The Belimo B311B+TFRB24 is a characteristically designed control valve with a variety of features. This assembly is a three-way valve with a size of one half inch NPT and a flow coefficient of 1.9 Cv. It is suitable for use in hydronic systems, serving heating and cooling coils in various applications.
- Designed for air handling units and fan coil units
- Self-cleaning ball valve construction
- Rated for water temperatures up to 250 degrees Fahrenheit
Product Highlights
This valve operates with on/off control and has a direct coupled actuator. It features a spring return mechanism and operates on 24 VAC/DC.
Product Information
Standard Information
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Brand: Belimo
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Part Number: B311B+TFRB24
Technical Specifications
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Housing: NEMA 2, IP42, UL Enclosure Type 2
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Service: Chilled, hot water, up to 60% glycol
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Power Consumption: 2 W running, 1.3 W holding
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Close-Off Pressure: 200 psi
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Flow Characteristic: A-Port equal percentage, B-Port modified linear for constant flow
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Operating Conditions: -22 F to 122 F (-30 C to 50 C)
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Electrical Connection: 3 ft. 18 GA appliance cable with 1/2 in. conduit connector
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Valve Size: 0.5 inches
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Angle of Rotation: 95 degrees