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Plastic Water Solenoid Valve - 12V - 1/2 Nominal


$13.20 AUD, inc GST
$12.00 AUD, exc GST

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Plastic Water Solenoid Valve - 12V - 1/2 Nominal
13.2 AUD


$13.20 AUD, inc GST
$12.00 AUD, exc GST
9 reviews 0 5 4.8


  • $6.95 Standard (2-4 days, tracked)
  • $9.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

Control the flow of fluid using the flow of electrons! This liquid valve would make a great addition to your robotic gardening project. There are two 1/2" (Nominal non-taped National Pipe) outlets. Normally, the valve is closed. When 12VDC is applied to the two terminals, the valve opens and water can push through. The valve has a gasket arrangement inside, so there is a minimum pressure requirement of 0.02 Mpa (3 PSI). Also, liquid can only flow one direction.

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 9V 1A or 12V 1A power adapters will do the job.

If you want a beefier water valve, We also carry a brass version which does not have a minimum pressure requirement and can be used with liquid flow in either direction.

Voltage Current
6V 160 mA
7V 190 mA
8V 220 mA
9V 240 mA
10V 270 mA
11V 300 mA
12V 320 mA

These solenoids are not rated for food safety or use with anything but water.

Technical Details

  • 1/2" Nominal NPS
  • Working Pressure: 0.02 Mpa - 0.8 Mpa
  • Working Temperature: 1 ℃ - 75 ℃
  • Response time (open): ≤ 0.15 sec
  • Response time (close): ≤ 0.3 sec
  • Actuating voltage: 12VDC (but Adafruit found it would work down to 6V)
  • Actuating life: ≥ 50 million cycles
  • Weight: 4.3 oz
  • Dimensions: 3.3" x 1.69" x 2.24"

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
  • In this tutorial, we will look at the basics of Solenoids and how they work. Then we will design a small circuit that can drive a Solenoid from the input/output pins on your Arduino board. We covered a whole bunch of rotational motion concepts whe...

Product Comments

Customer Reviews

  1. Review by Steven verified purchaser

    Good value. I'll be getting more of these. (Posted on 24/10/2018)

  2. Review by Eric verified purchaser

    Solid construction. (Posted on 18/01/2018)

  3. Review by Eric verified purchaser

    Solid construction. (Posted on 18/01/2018)

  4. Review by Rodger verified purchaser

    Great worked well with town water pressure of my 12 volt battery. (Posted on 11/01/2018)

  5. Review by Brendan verified purchaser

    Shipped and received quickly.
    The 1/2" ends fit the 15mm socket in the Bunnings irrigation supplies, there is a slight leak that could probably be fixed with some plumbing tape.
    I couldn't get it to fit any of the 15mm female to 13mm barbed products - the threads wouldn't take to each other. (Posted on 8/11/2017)

  6. Review by Robbie verified purchaser

    Intended purpose .. cat shower ( for backyard pussies ) .. useing 12v DC PIR motion detector, activating the solenoid before an impulse sprinkler. Project not finished as I am waiting for the arrival of a quality PIR.
    If interested will send pics when I'm satisfied with the result. Regards Robbie (Posted on 26/07/2017)

  7. Review by Peter - Works just how I need it to! verified purchaser

    Works just how I need it to! Service and delivery outstanding, and will order another two!! (Posted on 12/12/2016)

  8. Review by Isaac - Not recommended for small-scale use verified purchaser

    The valve works fine, however if you are running low pressures through it (like a gravity feed or a weak pump) you may be disappointed. The minimum operating pressure means that it is more suited for medium pressures. (Posted on 17/11/2014)

  9. Review by Iain - Positive verified purchaser

    Excellent unit . Will connect to 12volt timer , and the Garden will be watered automatically .
    Thank you .... (Posted on 11/10/2014)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $9.95 for Express Post (Overnight for most of Australia, 2+ days for rural, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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