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    Gate Valves



    Gate Valves

    At Winnellie Valve and Process, we supply quality Gate Valves in a range of design types to suit all applications. If you’re looking to buy Gate Valves in Australia, you need look no further than our extensive product range. If you’re unsure about which type of Gate Valves you need for your application, or would simply like more information and guidance, Winnellie Valve and Process are only too happy to chat through your options with you.


    What is a gate valve?

    Gate valves are the most commonly used form of pipeline isolation and are available in many different materials, sizes and pressure ratings. They provide good shutoff features, are bi-directional, have minimal pressure loss and come in metal seated designs that are suitable for both high and low temperatures. Cryogenic designs are also available.

    How does a gate valve work?

    Gate Valves are designed for either fully open or fully closed actions (think of a gate in a fence – you either leave it open or closed!), therefore they should not be used as control or regulating valves. They work by inserting a rectangular gate or ‘wedge’ into the path of flowing fluid and are operated by a threaded stem that connects the actuator to the stem of the gate.  Gate Valves are not suitable for regulating flow or pressure, or being operated in a partially open condition.

    What applications require gate valves?

    Gate valves are used in many industrial applications including the oil and gas industry, petrochemical, power generation and marine. Non-rising stem gate valves are very popular on ships or in underground applications, or where your vertical space is limited because they don’t take up extra space. Rising stem gate valves are however the most popular as you can visibly see if the valve is in the open or closed position. These are widely used in the oil and gas, power generation and pulp and paper industries.

    What are the types of gate valves?

    There are many different types of Gate Valves to buy in Australia such as flexible or solid wedge, inside or outside screw, expanding gate, through conduit gate, cryogenic, knife gate and subsea. To buy the right Gate Valve for your application contact one of our valve experts today.

    What to look for when choosing a gate valve?

    Gate Valves are great for use in applications that involve viscous liquids such as heavy oils, light grease, and other non-flammable viscous liquids.  They are available in large sizes to better handle thick flow, so check what application you require the gate valve to handle before choosing one. Gate valves also have low-pressure limitations and are not optimal in applications that require cleanliness or sanitary conditions. They are however excellent for use anywhere a shutoff valve is required. The valves are designed for full-area flow to minimise the pressure drop and allow the passage of a pipe-cleaning pig. Since most of the flow change occurs near the seat, the relatively high fluid velocity causes disc and seat wear and eventual leakage if the valve is used to regulate flow.

    How do you install gate valves?

    It’s always best to have a qualified technician install your valves for industrial applications. However if you want to be able to install a gate valve yourself, contact a valve expert to guide you through the process. Winnellie Valves and Process also provide valve training courses for all types of valves.

    Gate Valves

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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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