Datasheet

Front matter 6
Solenoid Valves Flow Characteristics
(4) Test method
By attaching the equipment for testing with the test circuit shown in Fig. (3) and running water at 5 to 40°C, measure the flow rate
with a pressure difference of 0.075 MPa. However, the pressure difference needs to be set with a large enough difference so that
the Reynolds number does not go below a range of 4 x 10
4
.
By substituting the measurement results for formula (8) to figure out Av .
Fig. (3) Test circuit based on IEC60534-2-3, JIS B 2005
Test range
Equipment for test
Thermometer
Flow meter
Pressure tap
2 d
≥ 20 d ≥ 10 d
6 d
Pressure tap
Throttle valve in
the upstream side
Throttle valve in the
downstream side