FIRŠT actuators, series EMV 110 602/1590 B is used in system, where in case of power failure opens/closes ball valve. It can be used as safety element in various systems. Valves are available in (DN 20 - DN 32).
| CODE | TYPE | Voltage | Rolation time | Connection | Max. torque [Nm]/b> | Weight (kg) |
| 10447 | EMV 110 602/1590-3/B DN20 | 230 VAC,50 Hz | 25s/90° | Cable | 8 | 0,81 |
| 10448 | EMV 110 602/1590-4/B DN20 | 230 VAC,50 Hz | 25s/90° | Cable | 8 | 0,97 |
| 10449 | EMV 110 602/1590-5/B DN20 | 230 VAC,50 Hz | 25s/90° | Cable | 8 | 1,24 |
| TYPE, DN | H | L | Kvs | Weight (kg) |
| FBV 602, DN20 | 152 | 57 | 41 | 1,10 |
| FBV 602, DN25 | 163 | 68 | 68 | 1,30 |
| FBV 602, DN32 | 173 | 81 | 123 | 1,50 |
| Control: | 2-Point control |
| Supply voltage: |
230 VAC 50Hz / battery power supply 4xLR6- 1.5V/AA (alkaline Duracell MN1500 batteries) |
| Rotation time: | 25s/90° |
| Max.Torque: | 8 Nm |
| Protection class: | I |
| Enclosure rating: | IP55 (Cable connection), |
| Connections: | cable 1.5 m, 3 x 0,75 mm2/ |
| Direction of rotation: | Defined |
| Manual operation: | yes |
| Position indicator: | on the valve holder |
| Ambient temperature: | 0°C..+55°C |
| Storage temerature: | -10°C..+70°C |
| Humidity: | 0%..80% R.H. (non condensed) |
| Connections: | internal thread |
| Medium: | water, nonaggressive fluid, air, glycol < 50% |
| Medium temperature: | +5°C...110°C |
| Working pressure: | max.16bar |
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Material: |
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Valve body:
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brass CuZn40Pb2 Ni |
| Ball: | brass CuZn40Pb2 Cr |
When the Firšt EMV 110 602/1590 B actuator is pluged in a electrical voltage it goes automatically in home position - closed (default or factory setting). In case of power failure the actuator is using battery power to open the valve. The actuator also has an output, which can be used for acoustic signaling in case of power failure (beeper 4-7 VDC - uses battery power). However, this shortens battery life.
SOLID FUEL BOILER:
In case of power failure it opens the flow, which passes all control elements. The installation must be executed properly, that it allows water circulation in the system.
In case of power failure it closes return line, thus prevents overheating of heat exchanger.
