# TIP120 and Solenoid Gas Valve

I have a Solenoid Normally Open gas valve rated at 29VA. It can be operated using 220VAC or 12/24/48 VDC. When i power it with AC mains voltage, it draws only 3mA @ 220V and the valve closes. When i power it with 12VDC nothing happens. I've tried controlling it using an Arduino with TIP120 but still it only draws 15mA @ 12VDC with a TIP120. My calculations say that it should draw about 2.4A @ 12VDC whith the rated power 29VA. whats wrong? why isn't it working and is only drawing 15mA? *I'm powering it with a lab power supply rated @ 30VDC 5A by the way, just in case you needed to know.

• Any datasheet? Brand? Model?
– filo
Jan 22, 2018 at 12:20
• not much information about the solenoid... it's and ESKA EVG Jan 22, 2018 at 12:21
• Does its datasheet suggest anything about how it can operate on such different voltages? Like, say, it comes with different options according to the voltage and you have the 220V one?
– user16324
Jan 22, 2018 at 12:44
• @BrianDrummond no there is no such thing stated, just that it can run at the said voltages AC or DC : 12V, 24V, 48V, 110V, 220V AC or DC (On request other voltages). The seller said that it runs on 12VDC with a battery. Jan 22, 2018 at 12:57
• No, it's quite clearly a range of valves - see translate.google.com/… If you think it magically works off different voltages, then explain how it magically connects to a variety of different pipe threads.
– user16324
Jan 22, 2018 at 13:18

It can be operated using 220VAC or 12/24/48 VDC

No it cannot.

The Eska EGV range is specified: -

• Working Voltage Range: 12V, 24V, 48V, 110V, 220V AC or DC (On request other voltages)
• Voltage Tolerance: ± %10

That does not mean that a 220 V AC coil will work at 12 volt. If you buy one rated for 220 V AC then it will work at 220 V AC +/- 10%.

• I don't understand, it says on request other voltages correct? that means for example if we needed 70VDC... Jan 22, 2018 at 12:49
• By the way there is no proper information listed in the datasheet... Jan 22, 2018 at 12:50
• Yeah I took a quick look and removed that part of my answer. Jan 22, 2018 at 12:55
• You have to order the correct part. That model is available in 12VDC, 24VDC, 48VDC, 110VAC and 220VAC versions. Jan 22, 2018 at 12:55
• @Janka the problem is that there are no other versions, only one... Jan 22, 2018 at 13:00