Month: July 2022

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Hydrogen Valve Collaboration – Only Oliver’s Could Do

Oliver Twinsafe have been working with their sister companies: Oliver Hydcovalves, and Oliver R&D, to prepare their 2” Metal Seated Trunnion ball valve ready for hydrogen applications. Rigorous testing using helium which is the best substitute to hydrogen has been carried out by R&D technician John Whitehead who said “in order for the Trunnion valve to pass testing it had to meet with stringent ISO 15848-1:2015 Tightness class B certification including ISO 5208:2015 zero seat leakage rate A. We’ve achieved this with precision engineering and by providing a high-quality seal face finish.

“This has been my first involvement on the Hydcovalves project and as with all of our test standards its tough-going and meticulous work is required to underpin the safety and certification which is paramount to the team. I’ve thoroughly enjoyed the hydrogen testing process, and to be involved in close collaboration with the Oliver group of companies at a very exciting time within the energy industry.”

For more information on Twinsafe’s range of Hydrogen valves or to discover Oliver R&D’s capabilities and service, contact Ian Bryant or Nick Howard on 01565 632636, email; sales@valves.co.uk or visit their website at www.valves.co.uk

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20 Years With Oliver Valvetek Has Literally Flown

20 Years With Oliver Valvetek Has Literally Flown for Mike Garner.

I have had a great twenty years and having been involved in most aspect of the Oliver Valves business from simply polishing valve seats, to setting up UK and overseas supply chains it has flown by without any dull moments.

If you are enthusiastic and eager to learn, this is the place to be. I arrived here after many years in a machine shop environment, which is limited, but very soon found myself in design meetings, discussing ideas with our Engineering Team, then working with our Quality team working out issues with customers. Then supporting sales with winning projects and managing the projects through the supply chain and meeting some great Engineers along the way.

One of my best moments was Mike Oliver asking if he could join me on a supplier visit where we had a major issue, “I’ll drive us down Mike” but he insisted on making the travel arrangements, I ended up flying with him on a private Jet, talk about doing it in style, it could only happen here.

So like I said “never a dull moment”.
I would like to take this opportunity to thank everyone for their help and support over the years, and will looking forward to the rest of my time here.
[By Mike Garner]

If you’re interested in a career at Oliver Valvetek and in engineering, please visit our careers page on the website https://lnkd.in/ebZYNjXv

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Just Reached 8,000+ followers on LinkedIn

We’ve just reached 8,000+ followers on our LinkedIn company page!
Thank you to everyone who follows us, likes our posts, and shares our content. We really appreciate your support and enjoy engaging with you. We’re one of the most exciting British engineering manufacturers within the Energy sector to follow!

If you’re not already following us, then we’d love it if you joined our LinkedIn community! All you have to do is click the blue “+Follow” button.

Here’s why you’d enjoy following us:

  • Be the first to find out about the latest Valves and their applicational usage – including, instrumentation, subsea, pipeline, hydrogen & carbon capture.
  • Read our latest R&D successes and how we’re leading innovation on valves for hydrogen and carbon capture.
  • We operate in over 50 countries, find out what’s happening inside Oliver Valves from around the world.
  • Learn about new opportunities and how you could start or switch to a career in engineering.

Visit our website at www.valves.co.uk

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Slimline Monoflanges for Cold Service

Traditionally within LNG (Liquefied Natural Gas) plants, there are ‘cold service’ applications and cryogenic. Cold service is typically between -29degC (-20degF) and -50degC (-58degF). Valving for cold service do not require cryogenic bonnet extensions, however, they often require smaller extensions to allow for the application of lagging. Lagging types and thicknesses vary from project to project, and can be up to 50mm thick.

The reason for using a bonnet extension with lagged valves is to move the top of the bonnet outside the lagging. Should the valve ever develop a gland leak, the produced fluid will not be trapped within the lagging and cause corrosion issues.

Valves used on cold service are required to be operable at -50degC, that is, be able to be opened and closed and maintain leak tightness through the gland and across the seat at the valve design pressure.

Oliver Valves Limited Slimline Monoflange block & bleed and double block & bleed assemblies, utilise an outside screw and yoke needle valve primary isolate and an inside screw and yoke type needle valves for a second isolate and bleed valve. For cold service applications, these can be supplied with extended bonnets. To validate the two types of needle valves with extended bonnets, Oliver have utilised the rigorous testing requirements called for within the Shell specification 77/300. Unlike some specifications which only deal with purely the ability of the gland seal to perform at the low temperatures, the Shell specification reviews both the gland seal and the seat seal.

Oliver has performed the 77/300 validation test within its R&D facility, on a 1½” Class 2500 Block & Bleed Slimline Monoflange with extended bonnets.  The performance of all the gland seals at -50 degC were well within leak rate BH and seat leaks were zero.  Testing was performed at ASME pressure classes 600 and 2500.  All the testing was witnessed by a third party.

  • Fugitive Emission Leak Rate B
  • 3rd Party Witnessed and Approved Qualification
  • Qualified Temperature Range -50°C to Ambient operable
  • Qualified in MESC SPE 77/300 Feb 2021
  • Qualified Pressure Class Range: 150:300:600: 900:1500:2500