B221+NRX24-SR-T N4    | CCV | 0.75
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Brand: BelimoSKU: B221+NRX24-SR-T N4

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B221+NRX24-SR-T N4 | CCV | 0.75" | 2 Way | 24 Cv | w/ Non-Spg | 24V | 2-10V | NEMA 4H | Belimo

Characterized Control Valve (CCV), 3/4", 2-way, Cv 24 |Configurable Valve Actuator, Non fail-safe, AC/DC 24 V, 2...10 V, NEMA 4X, terminals

Belimo | B221+NRX24-SR-T N4
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Details for B221+NRX24-SR-T N4

CCV | 0.75" | 2 Way | 24 Cv | w/ Non-Spg | 24V | 2-10V | NEMA 4H

This valve is typically used in air handling units on heating or cooling coils, and fan coil unit heating or cooling coils. Some other common applications include Unit Ventilators, VAV box reheat coils and bypass loops. This valve is suitable for use in a hydronic system with variable flow.


Valve specifications
Angle of Rotation
Controllable Flow Range
End Fitting
Internal thread
Chilled or hot water up to 60% glycol
Pressure Independent
Stainless steel
Valve Size
0.75" [20]
Actuator specifications
Actuator Type
Non fail-safe
Control Type
DC 2...10 V
Degree of Protection
IP66/67 NEMA 4X UL Enclosure Type 4X
Electrical Connection
Manual Override
External push button
Power Consumption (Holding)
0.6 W
Power Consumption (Running)
3.5 W
Running Time (Motor)
90 s / 90B0
Voltage AC/DC
AC/DC 24 V


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