Global Valves - BELIMO - #18

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ENG-93001-93621-08.04-1M • Printed in Switzerland • ZSD • Subject to technical modifications BC 18 T ~ AC 24 V - + DC 24 V N L1 AC 230 V 1 2 3 - + Y1 NV24-3 Y2 T 1 2 3 1 2 3 Y1 Y2 NV230-3 1 2 3 N ! NV24-3, NV230-3 linear actuators for globe valves Linear actuators for 2-way and 3-way globe valves DN 15...80 3-point actuators NV24-3 AC/DC 24 V NV230-3 AC 230 V Applications Operation of globe valves. Mode of operation Control is effected by means of a 3-point signal. Product features Simple attachment to the neck of the valve by means of a clamping strap. Semiautomatic coupling of the valve stem to the actuator spindle. The actuator can be rotated through 360° on the neck of the valve. Functional reliability The actuator is short-circuit-proof and protected against polarity reversal. Manual operation Inserting a 5 mm hexagonal key and turning it clockwise causes the linear spindle to extend from the actuator housing (pushing). Together with the action of the valve, this causes the flow of water to increase. The actuator spindle retains its position until the power supply is energized (the controller takes first priority). Position indication The stroke of the valve is indicated mechanically on the bracket; the indicator adjusts itself automatically. Safety note The linear actuator contains no components which can be replaced or repaired by the user. Note on delivery The UNV-002 bracket is included in the scope of delivery, providing the valve and the actuator are ordered together. 110 72 205 179 55 UNV-002 Connection via safety isolating transformer H+ Y2 Y1 HDimensions (incl. UNV-002) Wiring diagrams Nominal voltage AC 24 V 50/60 Hz, DC 24 V AC 230 V 50/60 Hz Nominal voltage range AC 19.2…28.8 V DC 21.6…28.8 V AC 198…264 V For wire sizing 5 VA 7 VA Power consumption 3 W 6 W Connecting cable 1 m, 3 x 0.75 mm2 1 m, 4 x 0.75 mm2 Nominal stroke 20 mm Actuating force 1) 1000 N / 2) 800 N Manual operation Hexagonal key, self-resetting Actuating time 7.5 s/mm, 3.75 s/mm selectable Sound power level Max. 35 dB (A) Position indication Mechanical 10…20 mm stroke Protection class III (safety extra-low voltage) I (with PE conductor) Degree of protection IP54 Ambient temperature range Non-operating temperature Humidity test 0° …+ 50° C –40° …+ 80° C To EN 60730-1 EMC LV Directive CE according to 89/336/EEC CE according to 73/23/EEC Mode of operation Type 1 to EN 60730-1 Maintenance Maintenance-free Weight 1.5 kg incl. UNV-002 bracket (without valve) 1) Closing force 2) Inhibiting force Technical data NV24-3 NV230-3