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    Check Valves



    Check Valves

    Check valves are installed in pipelines to prevent backflow. Basically a check valve is is a one-way valve, in which the flow can run freely one way, but if the flow reverses the valve will close.

    Check valves designs include:

    • Ball
    • Double Door
    • Lift
    • Piston
    • Stop Check
    • Swing
    • Tilting Disc

    Check valve

    At Winnellie Valves, we carry an extensive product range of quality Check Valves in a range of design types to suit all applications. If you’re looking to buy the most comprehensive range of check valves in Australia, you need look no further than our premium collection.

    Keen to see our full product listing? Along with our extensive collection of premium valves, we also stock a range of quality process solutions — view our full product range today. Need some help finding the best ball valves online for your needs? No problem. Simply get in touch with our expert team — we’d be more than happy to help.


    What is a Check Valve?

    Check Valves are simple devices that perform vital functions to prevent reverse flows and are found in almost every industrial application to act as one-way or non-return valves.

    How do Check Valves work?

    Check valves are used any time a process is required to provide one-directional flow. Basically, if a flow turns, the valve will ‘check’ and close, to protect the piping, other valves and process instruments.

    What are some different types of Check Valves?

    There are five major types of Check Valves available for industrial uses. Swing, lift (piston and ball), nozzle / axial flow, butterfly and tilting-disc. Each type of Check Valve has a specific purpose depending on the process itself. Check Valves can be made from a variety of materials including carbon steel, alloy steel, austenitic and ferritic stainless steel, nickel and titanium.

    What type of Check Valve is best?

    It depends on what the check valve will be applied to. When working with industrial tools and equipment it’s best to understand the manufacturer specifications of the product you are using, or alternatively speak to a product expert. When it comes to valves, Winnellie Valves and Process will be able to talk you through what type of product is best suited to your needs so you acquire the best-fit valves for your application.

    What is the difference between a Ball Valve and a Check Valve?

    Ball valves stand apart from other similar types of valves because they use a handle to turn a ball within the valve to either allow or prevent flow through the valve, depending on where it is positioned. In the case of ball valves, if the hole is aligned with the pipe the media will continue to flow through, whereas if the hole is perpendicular to the pipe the flow stops at the valve.

    What are the advantages of Check Valves?

    The unsung heroes of stopping reverse flow, Check Valves play a vital role in industrial management systems. They are able to make sure of the vitality of one-directional flow and can be used for a large range of liquids and gases. For more information on different types of Check Valves, talk to one of our valves experts or sign up for one of our various training options.

    How can a Check Valve help reduce the risk of water hammer?

    Water hammer, or valve slam, happens when the flow of a medium reverses before a valve can completely close. Once it does close, the sudden reversal in the direction of the flow and its pertaining velocity causing a hydraulic shockwave that travels close to the speed of sound through the pipeline. If water hammer continues to repeat, it can cause catastrophic damage to the whole piping system. Even if water hammer occurs and the system remains intact, components of the system will become fatigued much quicker and increase replacement and maintenance costs.

    Check Valves

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    Winnellie Group
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    Jutta TilleryJutta Tillery
    14:34 02 Apr 22
    Excellent customer service, kept us updated throughout the delivery process really looking forward to doing business with Waltan Tools again soon
    Daniel and ScottDaniel and Scott
    12:02 29 Jun 21
    We have done business with Winnellie Hydraulics on numerous occasions and find them to always be nothing but professional, honest and reliable.Their customer service is excellent and they are always a pleasure to work with. We would highly recommend Winnellie Hydraulics and we look forward to continuing business with Max and the team in the up and coming future.
    Damien PedersenDamien Pedersen
    06:23 15 Feb 21
    Winnellie Hydraulics are up most professional and I am always impressed with the service offered and provided. The team at Winnellie Hydraulics are highly skilled, innovative and ever reliable. They continue to be the Territory’s leading service specialists within the fields of the hydraulic and pneumatic services and solutions. The team have a broad range of knowledge in hydraulic, pneumatic, hose management and products across a extensive range of divisions. The team at Winnellie Hydraulics are easy to work with and really appreciate their customers and strive for continuous business improvement.
    Rob NorthRob North
    07:53 10 Feb 21
    Efficient, professional and dedicated. The team at Winnellie Hydraulics are a pleasure to work with and are customer service specialists.Max and the team have taken on many challenges to assist with emergent scopes at our onshore facility in Darwin. They go above and beyond to meet the timeline required without missing a beat on quality.I highly recommend dealing with them and look forward to future business.Thanks guys
    Darren SteeleDarren Steele
    02:59 07 Feb 21
    For all your Hydraulic & Pneumatic needs, Winnellie Hydraulics has you covered.Max and the team run a great operation that supports the Oil & Gas and Mining industries.With great brands supporting them, they are truly the one stop shop for all your engineering needs.
    Dipak NandDipak Nand
    23:06 04 Feb 21
    The team at Winnellie hydraulics, is great to work with, they understand our priority and service delivery to our Defence clients, No job too small or big and delivering of high quality products and service. Also really easy to deal with in regards to faults/ warranty and SME service . Highly recommended to use.
    Darren UptonDarren Upton
    22:54 04 Feb 21
    Winnellie Hydraulics are a Parker PPD for the NT which means they have full access to all Parkers Hannifin products & our local Engineering team in Australia who can work with Winnellie on any projects where clients needs are meet using Parkers products & their insulation experience
    Ben TilbrookBen Tilbrook
    07:35 04 Feb 21
    Outstanding commitment to their customers, in my experience there isn’t anything that is too hard for this mob. Always prepared to find solutions to their customers now matter how big or small the request. A great family business who take pride in providing product and service.
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