Solenoid Valves

Solenoid valves are electromechanical devices designed to open or close the flow of liquids or gases in various applications. At Process Systems, we proudly offer an extensive range of top-quality solenoid valves to cater to the diverse needs of industries across Australia. With our meticulously curated catalogue, experience, superior performance, reliability and efficiency in your fluid control systems. Join countless professionals who have already chosen Process Systems for their solenoid valve needs and improve your operations today.

Explore our diverse solenoid valve selection

Process Systems has a wide range of solenoid valves in Australia, including direct-acting, differential, high pressure, high temperature and explosion-proof, along with the various body material options available. Sizes ranging from DN8 to DN100 are all available ex-stock. Here are some of the top choices in our catalogue:

  • Brass General Purpose Differential Solenoid Valve — This versatile differential solenoid valve is designed for air and water applications involving non-aggressive media up to 40CST viscosity. Its normally closed functionality energises it to open and is available in all voltages. Equipped with a Class H Insulation coil and an IP65-protected DIN plug, the valve is suitable for installation in any orientation, although upright positioning is preferred. Compliant with ISO7.1 sealing threads, this solenoid valve ensures high-quality performance.
  • Watermark Normally Closed Solenoid Valve — Crafted from 316 stainless steel, this Watermark-approved normally closed solenoid water valve is perfect for potable water applications or any situation requiring Watermark certification (mains water in Australia). The valve comes with an IP65 weatherproof LED-illuminated DIN plug and coil. Its low-pressure differential and soft-close design make it an ideal choice for applications like rainwater switchover systems.
  • 5 Way 2 Position Namur Solenoid Valve — Our 5-way, 2-position solenoid valve features a Namur interface, making it suitable for direct mounting onto pneumatic actuators (both double-acting and spring return). Standard inclusions are a manual override, an LED indicator plug (IP65), and a fully encapsulated low-wattage coil (AC 5.5 VA, DC 4.8 Watts). The valve is available in all voltages and comes with mounting screws, ensuring seamless integration.

Process Systems — home of the best solenoid valves in Australia

Should you require further assistance or have any questions, our knowledgeable team is always here to help. Feel free to reach out to us, and we'll ensure you receive all the details you need to make an informed decision.

Join the ranks of our satisfied customers and elevate your fluid control systems with Process Systems today!

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  • What is a Solenoid Valve?

    A solenoid valve is a valve that is electrically controlled whereby the coil creates a magnetic field that moves an armature inside an operator tube when turned on. They come in two main states which are either Normally Closed (power to open) or Normally Open (power to close) (excluding latching solenoid valves). Amongst solenoid valves there are two categories; Differential and Zero Differential. This relates to the pressure drop required to operate the valve. Differential are servo assisted where they use a minimum pressure differential to operate whereby Zero Differential will operate with a zero head pressure on the valve. Solenoid Valves are commonly found in sizes from ⅛” to 2” for the majority. They also come in multiple configurations such as 2 way, 3 way & 5 way. We usually term these by the number of ways and over the number of states eg. 3/2 would be 3 way 2 position etc.

  • How does a Solenoid Valve work?

    Both differential and zero differential solenoid valves operate around the central function of a magnetic field been created to move an armature. This is a magnetic grade of metal (usually stainless steel) that will either move onto (closing off) or lift off (opening) an orifice in the valve. In zero differential applications it will be either coupled diaphragm whereby the armature actually lifts the diaphragm off the seat or direct acting where the armature sits directly onto the seat. In differential solenoid valves it will utilise a pressure differential to open or close the valve in conjunction with the armature moving onto or off a seat. For instance in a normally closed differential solenoid valve a magnetic field will be created, lifting the armature off the bleed off orifice which is bigger than the bleed on hole on top of the diaphragm. Therefore the pressure can escape off the top of the diaphragm faster than it can come on therefore the diaphragm will be lifted effectively opening the valve.

  • How long will my Solenoid Valve last?

    This depends upon the design of your valve, its usage case, its environment, media and how many times it is cycled. For example if it is on a clean media, in a clean environment and not cycled regularly the life will be decades. If it is on a corrosive media and a harsh environment it could be much shorter. We have seen our models in use for decades continuously in some instances. All of our coils are 100% ED which means they are rated to be used 100% of the time continuously. The only caveat in these cases is that the coil must be able to dissipate the heat generated so it can't be in a small box or hot environment if this is the case.

  • How do I install a Solenoid Valve?

    All solenoid valves have a direction of flow they must be installed in. This is usually indicated by an arrow cast into the side of the body of the valve. A solenoid valve can be installed in any plan if needed eg. sideways, upside down but if possible it is best to operate it vertically with the coil on top. This will help stop any scale building up in the operator tube as well as minimise the chance of any leak through on larger size low pressure zero differential applications. Once the valve is installed in the pipeline by either threaded nipples or flanges if it is flanged the valve can be wired up. In most cases this will be by way of a DIN plug which is wired and then connected to the coil. Never run the coil without being on the operator stem as it will cause it to burn out.

  • What are typical uses of a Solenoid Valve?

    This really depends upon the solenoid valve in question as they have an enormous range of domestic and industrial applications. They are found commonly on compressed air lines, water lines, steam lines, fuel lines and any other application where flow needs to be isolated. As long as the pressure, temperature and chemical compatibility is fine the valve will have an application.

  • How long will my product take to get to me? 

    This depends upon where you are based and the freight method chosen. If the express freight option is selected it is usually next day delivery to metropolitan areas in Australia for under 5kg. If free freight has been selected it will go by road freight which can be anywhere from 1 to 10 days depending upon your location. It usually averages 3 days.

  • What warranty do I get?

    All of our products come standard with a 12 month warranty. The good news is we have very strict quality controls and all valves leave our warehouse tested (full material and testing certificates to API598 are available) and inspected so there are rarely any issues. Also once your valve is in and operating it will most likely continue to do so for a very long time barring any debris getting caught in the valve or power spikes causing the coil to fail..