The TUTUs are destined for an oil and gas platform, and will provide the operator with a means of isolating the hydraulic and chemical injection services to the well.
Compact size - combined with easy access for operations and maintenance - is critical for this application: the TUTU cabinets mount on the platform deck, in the limited space available adjacent to the umbilical hang-off.
To help minimize the equipment size, Parker Instrumentation suggested that Tyco use manifolds from its HiPro family for the isolation functions. These components provide the required double-block-and-bleed functionality in a compact, in-line format. In combination with Tyco's specialist tube bending skills, these manifolds helped to pack a lot of functionality into each TUTU cabinet - without restricting access during operation or maintenance activities.
Parker also supplied Tyco with the additional valve components needed for the TUTU cabinets - including high-integrity fire-safe valves for the methanol injection lines - simplifying project execution.
"We select the valves we require mainly on the basis of their quality, integrity and pricing, but in this instance, Parker Instrumentation's components also helped us to reduce the size of the system, and enhance reliability by eliminating several leak paths", said Tyco Fire & Integrated Solutions' Contracts Manager, Matthew Watts.
The pressure ratings required for this offshore platform project are up to 517 bar (7500 PSI). For the critical isolation points in this equipment, Parker's HiPro manifolds provide a double ball valve assembly inside a single-piece in-line body, with a needle valve assembly for bleeding. Rated at up to 689 bar (10,000 PSI), the manifolds were designed expressly for limited space applications requiring lower weight, and provide a particularly compact solution for offshore projects such as TUTUs. Before shipping the equipment, Tyco tests the integrity of each flow line assembly to pressures that are at least 50% higher than the maximum working pressure.
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