We are leaders in the design and manufacture of subsea valves and have been trusted in support of critical subsea oil and gas applications since the late 1980s. Over 12,000 of our subsea valves have been designed, installed and are operating in some of the most aggressive service and environmental conditions. Subsea valve design is not a simple transition from a topside or onshore equivalent which is why experience counts.
Stringent Design standards. Subsea valve design, like any critical component, must meet stringent industry standards including API 6A, API 6DSS and API 17D (ISO 10423, ISO 13628, ISO 14723). Body design must overcome deep water hydrostatic pressure and internally and externally the design must be corrosion resistant. Combine these design aspects with variability in pressures, process fluid/gas composition and bore sizes, and very quickly you can see that subsea valve design takes significant engineering expertise.
The right product to suit the application. Ensuring the specification meets requirements prior to order placement makes all the difference. We fully understand that subsea valve design and therefore defining specifications can be complex, especially when you consider the variables involved. To help our customers start with the right specification we offer a comprehensive portfolio to suit, and share our design knowledge of critical on/off valve provision. And because we’re the experts, we guide you through this selection process – if and when needed. Whatever your subsea application; subsea production systems; pipeline end manifolds; subsea processing; isolation; storage or compression.
What needs to be considered. The right choice of valve is crucial, whether it be subsea ball valve, subsea slab gate valve or double expanding subsea gate valve each has their benefits and this depends very much on operational performance and conditions. At the selection process we must consider design requirements and ideally this is done in partnership with our customer. Operational specifications are clearly affected by numerous aspects such as hydrostatic load pressures, height or space restrictions, bi-directional ingress sealing, high or low temperatures, sandy or dirty conditions, pigging requirements, end connections, installation restrictions, operational frequency, and many more – including of course the commercial aspects of cost and availability.