NVK24A-3-TPC Supercap Globe Valve Actuator, AC 24 V, 150 s - Belimo | ideal for globe valves

For any Belimo Actuators that are in stock at iacs, we offer Free Delivery and Next 1-2 Day Delivery.

The Belimo NVK24A-3-TPCis a kind of Actuator used to operate valves in HVAC applications and systems.

The force applied by the Torque of the NVK24A-3-TPC is 1000 N.

This Valve Actuator needs to be supported by a power supply of 24Vac/Vdc.

You may utilise this Belimo component with Globe Valves.

Find the appropriate Belimo Actuator for your system at the greatest price at iacs.

If you have questions about size or installation, consult the Belimo custom datasheet above or send an email to iacs to get personalised guidance.

NVK24A-3-TPC Supercap Globe Valve Actuator, AC 24 V, 150 s

• 1000 N, 20 mm, 
• AC 24 V, 3-point
• Actuating time motor 150 s / 20 mm
• IP 54, Manual override temporary
• Connection Terminal with cable PVC 1 m
• Stroke direction / closing point selectable (top/bottom)
• Power-Off-Position adjustable

Mode of operation: The actuator moves the valve to the desired operating position at the same time as the integrated capacitors are loaded. Interrupting the supply voltage causes the valve to be moved to the selected emergency setting position (POP) by means of stored electrical energy

Pre-charging time (start up): The capacitor actuators require a pre-charging time. This time is used for charging the capacitors up to a usable voltage level. This ensures that, in the event of an electricity interruption, the actuator can move at any time from its current position into the preset emergency setting position (POP). The duration of the pre-charging time depends mainly on how long the power was interrupted.

Delivery condition (capacitors): The actuator is completely discharged after delivery from the factory, which is why the actuator requires approximately 20 s pre-charging time before initial commissioning in order to bring the capacitors up to the required voltage level.

Direct mounting: Simple direct mounting on the globe valve by means of form-fit hollow clamping jaws. The actuator can be rotated by 360° on the valve neck.

Manual override: Manual control with push-button possible - temporary. The gear is disengaged and the actuator decoupled for as long as the button is pressed. The stroke can be adjusted by using a hexagon socket screw key (4 mm), which is inserted into the top of the actuator. The stroke spindle extends when the key is rotated clockwise.

High functional reliability: The actuator is overload protected, requires no limit switches and automatically stops when the end stop is reached.

Combination valve/actuator: Refer to the valve documentation for suitable valves, their permitted medium temperatures and closing pressures

Position indication: The stroke is indicated mechanically on the bracket with tabs. The stroke range adjusts itself automatically during operation.

Home position: Factory setting: Actuator spindle is retracted. When valve-actuator combinations are shipped, the direction of motion is set in accordance with the closing point of the valve.

Direction of stroke switch: When actuated, the direction of stroke switch changes the running direction in normal operation. The direction of stroke switch has no influence on the emergency setting position (POP) which has been set.

Rotary knob emergency setting position: The «Emergency setting position» rotary knob can be used to adjust the desired emergency setting position (POP). The POP range is in reference to the maximum height of stroke of the actuator. In the event of an electricity interruption, the actuator will move into the selected emergency setting position, taking into account the bridging time (PF) of 2 s which was set ex-works.

Electrical data:

• Nominal voltage AC 24 V
• Nominal voltage frequency 50/60 Hz
• Nominal voltage range AC 19.2...28.8 V
• Power consumption in operation 2.5 W
• Power consumption in rest position 1.5 W
• Power consumption for wire sizing 6 VA
• Connection supply / control Terminals with cable 1 m, 4 x 0.75 mm² (Terminal 4 mm²)
• Parallel operation Yes (note the performance data)

Functional data:

• Actuating force 1000 N
• Manual override Gear disengagement with push-button
• Nominal stroke 20 mm
• Actuating time 150 s / 20 mm
• Actuating time emergency control function 35 s / 20 mm
• Sound power level motor max. 56 dB(A)
• Sound power level emergency setting position max 60 dB(A)
• Position indication Mechanically, 5...20 mm stroke

Safety:

• Protection class IEC/EN III Safety extra-low voltage
• Degree of protection IEC/EN IP54
• EMC CE according to 2004/108/EC
• Certification IEC/EN IEC/EN 60730-1 and IEC/EN 60730-2-14
• Mode of operation Type 1.AA
• Rated impulse voltage supply / control 0.8 kV
• Control pollution degree 3
• Ambient temperature 0...50°C
• Non-operating temperature -40...80°C
• Ambient humidity 95% r.h., non-condensing
• Maintenance Maintenance-free

Weight: Approx. 1.7 kg

Terms Abbreviations: POP = Power off position / emergency setting position, CPO = Controlled power off / controlled emergency control function, PF = Power fail delay time / bridging time