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    Subsea Valves



    Subsea Valves

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

    Subsea valves are highly engineered valves tailored to specific requirements for various subsea-related projects. They are used to isolate or control the flow of media through an undersea pipeline (submarine pipeline) or other associated applications. They perform an integral part of subsea flow infrastructure in both shallow and deep water.

    What are the advantages of Subsea Valves?

    Subsea Valves (as the name suggests) are used in underwater environments, so considerations for Subsea Valves over regular valves are that they must be waterproof, be able to handle an increased ambient pressure load and need to be constructed using materials that are able to handle long-term corrosion effects from high salt content seawater.

    How do Subsea Valves work?

    Subsea Valves are able to be manually geared or actuated with hydraulic actuators. There are three basic groups of valves on a subsea system: choke, check and on-off. Choke Valves are valves used to reduce pressure or restrict flow from a well, while on-off valves isolate the flow of media and are specifically designed to be either left all the way open or all the way closed. Check Valves prevent backward flow of media.

    What types of isolation Subsea Valves are there?

    Subsea Gate Valves
    These valves can be either slab or double expanding, and are the most common types of valves used subsea environments. They are usually hydraulically actuated and sometimes with the assistance of an ROV (remotely operated vehicle) for operation. Subsea Gate Valves tend to be heavier and are constructed with overlays of corrosion-resistant alloys.
    Subsea Ball Valves
    These valves can be trunnion or floating ball designs and have an advantage over Gate Valves as they come in a more compact design for when you have weight or space limitations. A Floating Ball Valve, the ball is free to move and the seats are fixed, so when pressure increases the higher the force is pushing the ball against the seat – therefore, the higher the pressure, the better it seals. With a Trunnion Ball Valve, it inverts the roles and the ball stays fixed as the seats move.

    It’s always wise to look at what media is flowing through the application before you choose which configuration of type of Subsea Valve you require. Talk to a Valve and Process expert to get the right valve for your application.

    What are typical uses of Subsea Valves?

    Subsea Valves are predominantly used in the oil and gas industries where they are utilised under the sea or ocean and require extra protection for waterproofing and against corrosion.

    For more tips on the use, service and maintenance of Subsea Valves, contact a Winnellie Valves expert or sign up for one of our many different valve and process training courses.

    How do I install a Subsea Valves?

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

    Subsea 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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