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    Plug Valves



    Plug Valves

    At Winnellie Valve and Process, we supply quality Plug Valves in a range of design types to suit all applications. If you’re looking to buy Plug Valves in Australia, you need look no further than our extensive product range. If you’re unsure about which type of Plug 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 Plug Valve?

    Plug Valves come available in conical or cylindrical shapes and are quarter-turn manual motion valves used to stop or start the flow of fluid. The plug itself is the only element capable of movement.

    How does a Plug Valve work?

    Plug Valves have hollow passages through the valve body. Their quarter-turn motion will create an alignment between the pipe and the hole,

    What applications require Plug Valves?

    Plug Valves are widely used in hydraulic systems and associated operations. They are an essential component to ensure the efficient running of processes. They are utilised in bubble-tight services as an on-off stop valve. They are used in gaseous and vap our services, natural gas and oil piping systems, abrasive slurry and high-pressure applications.

    What is the difference between a Plug Valve and Gate Valve?

    Gate valves are normally wide open or completely closed. Like gate valves, plug valves are used primarily for non-throttling, on-off service. They require minimum Installation space and utilise a simple and quick “quarter-turn” design.

    What are the types of Plug Valves?

    Although there are many types of Plug Valves to buy in Australia, there are five general categories, each with their own benefits.

    Lubricated Plug Valves

    These valves use a lubricant that is injected between the plug face and body seat to seal ports and reduce friction. Because they are considered high maintenance, they are more often used in applications that have infrequent operations.

    Non-Lubricated Plug Valves

    This type of Plug Valve has a sleeve which encapsulates the plug ensuring there are no cavities or dead space. These plug valves are ideal for application where the product may crystallise in the cavity preventing the valves from turning. A similar design to these sleeved plug valves is the lined plug valve which as well as having the sleeve around the plug also has a PTFE liner on the inside of the body which provides a corrosive resistant barrier between media such as acids and the valve body.

    Lift-Plug Valves

    Lift-plug valves utilise a cone shaped plug that lifts out of the seat prior to rotating 90 degrees and then lowering back into the seat. This means that even though it is a metal-to-metal seal there is no contact between the plug and the seat during operating, eliminating wear and increasing lifespan of the valve.

    Eccentric Plug Valves

    Eccentric Plug Valves are used for a range of flow control and isolation applications and use a half plug for processes requiring a higher seating force with minimal friction from the open to closed position.

    Expanding Plug Valves

    These valves are complex and have multiple components that allow the valve to mechanically expand for a true double-block and bleed function in the one valve. A mechanism rotates between the open and closed positions that protects both seals from the path of the flow. Expanding Plug Valves are often used to prevent product contamination between tanks containing different fluids or critical isolation applications.

    To buy the right Plug Valve for your application contact one of our valve experts today.

    What to look for when choosing a Plug Valve?

    There are a range of specifications to consider when selecting a Plug Valve. Because they can be used in a variety of applications. Points to consider include pressure, temperature, corrosiveness and slurry content.

    How do you install Plug 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 Plug 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.

    Plug 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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