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


$47.40 AUD, inc GST
$43.09 AUD, exc GST

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


$47.40 AUD, inc GST
$43.09 AUD, exc GST
3 reviews 0 5 5
In stock, ships same business day if ordered before 2PM
Delivered by Wed, 12th of Dec


  • $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, 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
  • 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 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)

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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