bistable solenoid valve 1/2 inch 24v dc 21WA4K0B130 BDA05024LS
the polarized electromagnet is a valid solution for all those applications where energy absorption or electromagnet heating, even very limited, are not tolerated. The bistable command has the advantage of requiring energy only in the switching phase: this is possible thanks to the presence of a permanent magnet inserted inside the coil, which performs a combined action with the magnetic field induced by the electric winding. The duration of the impulse necessary to generate the change of state is a few hundredths of a second, while the polarity of the power supply determines the opening or closing of the valve. The very limited energy absorption of these products makes them particularly suitable when using battery power. The heating of the electromagnet is almost zero as a consequence of the low energy absorbed.
bistable latch voltages: 24v
NB INSTALLATION FOR GAS IN ARIEGGIATO PLACES, NOT IN CLOSED PLACES OR UNDER WEATHER.
I would like to kindly know, if such type of solenoid valve
requires a positive impulse to open
and a negative impulse to return to the closed position
or is a second always positive impulse enough?
I confirm that the two pulses must be of inverted polarity to open and close the solenoid valve, for further details you can refer to the attached wiring diagram (see product images)
Is it possible to use it for LPG gas?
the version with NBR membrane for natural gas
the version with VITON membrane for LPG
can the solenoid valve be kept indoors?
NO, they must be outdoors
can the solenoid valve stay in the rain?
YES, if you buy the IP67 protected version
can I assemble it that I am not an editor with the requirements?