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Brass Liquid Solenoid Valve - 12V - 1/2 NPS


$41.95 AUD, inc GST
$38.14 AUD, exc GST

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Brass Liquid Solenoid Valve - 12V - 1/2 NPS
41.95 AUD


$41.95 AUD, inc GST
$38.14 AUD, exc GST
3 reviews 0 5 5

Control the flow of fluid using the flow of electrons! This liquid valve would make a great addition to your robotic gardening, aquarium, or pool project. There are two 1/2" (Nominal NPS) outlets. Normally, the valve is closed. When 12VDC is applied to the two terminals, the valve opens and water can flow. Unlike the plastic solenoid valve, this one does not have a gasket, so there is no minimum pressure requirement.

Adafruit tried this solenoid at various DC voltages and found Adafruit could actuate it down at 6VDC (although it was a little slower to open). Here is the current draw table for various voltages. We suggest a TIP120 or N-Channel power FET with a 1N4001 kickback diode to drive this from a microcontroller pin. For a power supply, Adafruit's 12V 5A power adapter will do the job.

If you want smaller, more basic valve, We also carry a plastic version which does have a minimum pressure requirement but has much lower power requirements!


6V1.6 A

7V1.86 A

8V2.0 A

9V2.3 A

10V2.5 A

11V2.7 A

12V3 A

These solenoids are not rated for food safety by any official standards. However, they are made of cast brass, with a rubber gasket made of NBR (Nitrile Rubber) so it can be used with any fluid that will not damage or be damaged by the rubber gasket material.

Technical Details

  • 1/2" Nominal NPS
  • Working Liquid Pressure: 0 Mpa - 1.0 Mpa (140 PSI)
  • Working Temperature: -5℃ - 80 ℃
  • Actuating voltage: 12VDC (but Adafruit found it would work down to 6V)
  • Actuating life: ≥ 50 million cycles
  • Weight: 1.7lbs
  • Dimensions: 105mm tall x 55mm wide x 65mm long

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
  • Controlling a Solenoid with an Arduino
  • We covered a whole bunch of rotational motion when we looked at DC motors. It’s only fair to give linear motion the same treatment. Electric solenoids work on similar electromagnetic principles to those of DC motors, however, solenoids can u...

Product Comments

Customer Reviews

  1. Review by Nathan verified purchaser

    Quite cool. Draws a fair bit of current (3A), but needs no pressure to actuate, so can be used with gravity-fed and/or small pumps etc which is great (Posted on 19/08/2016)

  2. Review by Nick - Great verified purchaser

    I used this valve to control a gravity fed Diesel tank in my ute. Works a treat. My email enquiry regarding its suitability to use with diesel was answered quickly.

    (Posted on 12/09/2015)

  3. Review by Rob - Brass Liquid Solenoid Valve - 12V - 1/2 NPT verified purchaser

    The valve we ordered has done the job we needed it to do,
    We will definitely be ordering more and the service we received was superb (Posted on 9/08/2014)

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

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  • $16.50 for Express International (2-5 days, tracked)

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Unit 18, 132 Garden Grove Parade
NSW, 2289

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