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LRB24-SR | Belimo | Control Valves
Valve Actuator, Non-Spring, 24V, Modulating
Brand:Belimo
MPN:LRB24-SR
SKU:LRB24-SR
product specifications
Actuator Series
LR
Agency Listings
cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EC
Ambient Temperature Range
-22 to 122 °F (-30 to 50 °C)
Angle of Rotation
90°
Application Type
Water
Connection
FNPT
Cv
0.3-19 CV
Electrical Connection
3 ft 1 m, 18 GA plenum cable with 1/2” conduit connector
Fail-Safe
Non-Spring Return
Feedback Output U
2 to 10 VDC
Housing
NEMA 2, IP42, UL Enclosure Type 2
Input Impedance
100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω for 4 to 20 mA
Manual Override
External Push Button
Position Indication
integrated into handle
Power Consumption Holding
0.4 W
Power Consumption Running
1.5 W
Power Supply
24 VAC ± 20%, 50/60 Hz, 24 VDC ± 10%
Power Supply Type
24V
Quality Standard
ISO 9001
Running Time
90 seconds
Servicing
maintenance free
Storage Temperature Range
-40 to 176 °F (-40 to 80 °C)
Torque
45 in-lb
Transformer Sizing
3 VA (class 2 power source)
Type
Actuator Only
Unit of Measure
PC
Trim Material
Brass
Size
1/2 - 1-1/4 in
Supply Va
3 VA
Control Signal
Analog
Flow Pattern
2-Way or 3-Way
Supply Voltage (Nominal)
24 VAC
product series specifications
Size: 1/2" - 3"
CV Range: 0.8 to 240 (2-way), 0.3 to 83 (3-way)
Body Pattern: Two-way, three-way mixing or diverting
Flow Characteristic: Two-way equal percentage, three-way linear
Leakage Rating: 0% for port A to AB; 2% maximum for port B to AB
Maximum Closeoff Pressure: 200 psi (1/2"-2"), 100 psi (2"- 3")
Materials Of Construction: Forged brass body with nickel plating, chrome plated (or stainless steel) ball, PTFE Teflon® seals, Tefzel® characterized disc, EPDM o-rings
Media Compatibility: Hot or chilled water, <60% glycol
Media Temperature Range: 0° to 250°F (-18° to 120°C)
Compatible Actuators: Non-spring return TR, LRB, NRB, ARB; spring return TF, LF, AF
Pressure Drop: Maximum differential pressure 30 psi
Pressure Rating: 600 psi (1/2" to 1-1/4"), 400 psi (1-1/4" to 3") for two-way; 600 psi (1/2" to 1"), 400 psi (1-1/4" to 2") for three-way
Approvals: CSA, CE
Warranty: 5 years
product series features
- Equal percentage characteristic (2-way)
- Large Cv range from 0.8 to 170
- Assembled, ready for installation
- Spring return or non-spring return actuators
- Floating, two-position, or proportional control
more information & related documents
Series Description
The B2 Series 2-way ball valves and B3 Series 3-way ball valves are used for two-position, floating or proportional control of HVAC hot or chilled water. Perfect for HVAC applications and Building Automation Systems, BAS, each two-way and three-way ball valve comes assembled with direct-coupled Belimo electric actuators with spring return or non-spring return operation.
Kele Description
NSR, PROPORTIONAL, FOR BX23 TO BX30
Manufacturer
Belimo
Related Documents
B2, B3 Series Datasheet 
