The complete safety group is designed for autonomous water heating and DHW systems with a pressure up to 2 bar. The safety group provides the following functions: protection against overpressure in the system; removal of air and gases from the system; indication of pressure in the system at the level of the pressure gauge. The group has an additional threaded outlet for connecting an expansion tank. The safety group is equipped with an automatic float air vent, safety valve and pressure gauge.
| Size, G1 | 3/4″ | |
| G2 × C × D | 1/2″×167×110 mm | |
| Рабочее давление, бар | до 10 | |
| Connections dimensions: |
– to mains | 1″ female |
| – for air vent | 1/4″ female | |
| – for safety valve | 1/2″ female | |
| – for pressure gauge | 1/4″ female | |
| Maximum temperature of the working environment, ℃ | 120 °С | |
| Work environment | Water, steam, glycol solutions (50%) | |
| Maximum output of the serviced heat generator¹, kW | 44 | |
| Scale value of manometer, bar | 0,2 | |
| Setting pressure of safety relief valve, bar | 2 | |
| Minimum medium pressure², bar | 0,05 | |
| Manometer scale range, bar | 0…4 | |
| Maximum volume flow rate of the air vent (in air), l/min | 13 | |
| Nominal flow rate of safety relief valve (water), l/sec | 0,07 | |
| Body material | Brass CW617N | |
Notes:
1. Determined by the capacity of the safety valve. If the type of valve is changed, the capacity can be increased accordingly.
2. Determined by the working condition of the air vent.