Part name: Water valve with integrated flowmeter
Description:
Servo-assisted solenoid valves for water with integrated flow sensor. These valves are typically used on household appliances connected to the hydraulic network. A flow sensor, capable of measuring the volume of delivered water, and a flow limiter, capable of limiting the value of the water flow rate, as a function of inlet pressure, are integrated to the valve. The flow sensor is constituted by an impeller immersed in the water flow. The impeller rotation cause the ferrite magnets to rotate in front of a hall effect sensor. The obtained signal is a square wave with the pulse frequency proportional to the flow of water.
General characteristics:
  • Water inlet with ¾ inch BSP thread for EU applications and ¾ inch GH for U.S. applications.
  • Water output with connection for rubber hoses or quick connection.
  • Single valve with linear output or 90° angle compared to the inlet.
  • Coils for 220 Vac, 110 Vac and 24 Vac-dc.
  • Coil electrical connections with 6.3x0.8mm terminals and rast connectors 2.5 (IP00).
  • Electrical connections of the flow sensor of type rast 2.5.
  • The sensor is protected by double insulation, and therefore is suitable for use even on applications that are not equipped with safety transformers SELV.
  • Wras materials if requested.
Approvals:
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TECHNICAL DRAWING
Technical data:
Ambient temperature 2 °C÷60 °C
Temperature of fluid 2 °C ÷ 70 °C
Operating pressure 0.02 ÷ 1 MPa (0.2 ÷ 10 bar)
Flow rate According to the mounted regulator (2.5 to 8 l/min)
Minimum flow of signal presence 0.6 l/min
Minimum flow of flow rate measure According to the flow regulator used
Accuracy of the flow measure According to the flow rate (+/-4.5% to +/-8%)
Hall sensor power supply 3.8 - 24 Vdc
Resistance to Bursting > 6 MPa ( > 60 bar ) a 25°C
Life 50.000 cycles (at 10bar 85°C 3sec ON-3sec OFF)
200.000 total litres (at 70°C and 7 l/min)