Oliver Twinsafe’s Double Block & Bleed valves are used as part of a project for Maersk’s Tyra field, delivering innovative valve solutions for use in the Danish North Sea. Ian Bryant, their Engineering Manager shows our manufacturing operations and explains the design of a DBB valve at our headquarters based in Knutsford, U.K.

Oliver designs, builds, inspects, tests and paints a full range of Instrumentation, Piping and Subsea valves in-house. Ian Bryant, their Engineering Manager shows our manufacturing operations and explains the design of a DBB valve at our headquarters based in Knutsford, U.K.

The valves undergo rigorous testing on-site inclusive of pressure testing reaching above and beyond 10,000 psi and exposure to extreme temperatures with zero leakage. Each stage of the manufacturing process involves meticulous operations; from the implementation of FEA (Finite Element Analysis) throughout design concept to the specialist application of epoxy paint, they pride themselves in providing reliability under pressure with every Oliver product. As pioneers of valve innovation for over 40 years, the Oliver companies take a consultancy approach to provide a bespoke service and have worked with thousands of bluechip companies worldwide.

You may also like

Ball Valves 101
As part of our Peerless eLearning training series, this is a recorded webinar with our partner, J Flow Controls to discuss Quarter Turn Ball Valves.
Double Block & Bleed Valves, Traditional Methods vs. Current Best Practices
As part of our Peerless eLearning series, this was a recorded webinar with our partner Oliver Valves, to discuss the topic of Double Block and Bleed Valves (DBBs). We compared traditional methods of DBB valves with current best practices.
Peerless Valves 101 Webinar with Kevin Renaud
This is an entry-level review of manual valves to include the gates, globes, checks, ball and butterfly valves.
Intermixable and Interchangeable Compression Fittings
In this video, we explain the difference between intermixing and interchanging DK-LOK and Swagelok compression fittings.
Oliver Valves Instrumentation and Pipeline Valves
Oliver Valves has since grown to become one of the world’s leading manufacturers of instrumentation, subsea, and pipeline valves for the global energy sector and they’ve manufactured more than 300,000 of these units installed worldwide.
Oliver Twinsafe Valves
Oliver Twinsafe offers a range of valves from 1″ to 16″ in either full or reduced bore sizes, in ASME pressure Classes from 150 to 2500 and API ratings up to 10,000 API. Both soft and metal seated options are available. 
How to properly assemble Tube Fittings 1 inch or smaller
In this video, you'll learn how to properly assemble tube fittings 1 inch or smaller. DK-LOK fittings and valves are manufactured to the most stringent industry standards.
How big is the DK-LOK product line?
When it comes to the instrumentation business, DK-LOK has the industry's most comprehensive product line. DK-LOK has more product equivalents than anyone else in the market.
What approvals does DK-LOK have?
Quality certificates and certifications span the globe with DK-LOK so you can rest assured your project valves and fittings will be compliant. DK-LOK is certifed with CRN, ABS, TuV, Russian GOST, DNV, GL just to name a few.
Introduction to DK-LOK Compression Fittings & Valves
DK-LOK Compression Tube Fittings & Valves are manufactured to the most stringent industry standards and guarantees a leak-tight seal in all process, power and instrumentation applications.