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Opportunities for FPSO Vessels: Achieve Enhanced Safety and Reliability

Tailored fluid system solutions for floating production storage and offloading (FPSO) vessels

Floating Production Storage and Offloading (FPSO) Vessel

Floating Production Storage and Offloading (FPSO) Vessels

Optimizing New Oil and Gas Production

Floating production storage and offloading (FPSO) vessels have emerged as an effective, efficient, and economical way to capitalize on oil fields around the world.

The stakes are high—all onboard systems must provide uncompromising safety and reliability in some of the world’s most demanding applications over a typical 20- to 30-year service life.

To optimize production, FPSO vessels face these unique challenges:

On-time delivery, continued availability, and local sourcing 
Safe, reliable, environmentally sound, and efficient performance 
Net-zero environmental impact 
Return on investment 
Tight construction schedules and quick commissioning that require on-time delivery, continued availability, and local sourcing for most parts.
Systems are expected to provide safe, reliable, environmentally sound, and efficient performance to maximize uptime, while minimizing operation costs and overall life cycle cost.
Environmental Impact
In the future, FPSOs will need to be designed and operated to support net-zero environmental impact initiatives.
Return on Investment
Fit-for-purpose performance—achieving the best asset for the best price—is required to realize optimized return on investment.

Swagelok Solutions for FPSOs

With a breadth of technical knowledge and a long history of service in the oil and gas industry, we can provide the assistance you need to succeed. Our team is well-versed in the regulations, standards, planning, design, logistics, contracts, delivery, inventory, and training that are critical considerations for every fluid system.

We can provide:

  • High-quality remakeable fittings and preassembled solutions for onboard systems, contributing to increased asset longevity
  • Technical and engineering assistance throughout each stage of your asset life cycle, from pre-FEED to operation
  • Onsite field engineers to assist in all phases during fabrication and construction, including precommissioning assistance
  • Training for fabricators, integrators, operators, and maintenance crews
  • Worldwide availability and support

How Swagelok Interacts with the FPSO Supply Chain

FPSO Supply ChainBuilder

Swagelok works with builders to be sure our products comply with the operator’s specifications. By providing a single source of products, along with standardized training and technical support, we help FPSO builders deliver flawless execution.


Our local specialists have a deep understanding of your needs and application requirements, and are backed by a global team of experts. Only Swagelok offers comprehensive project management support and global resources to holistically support international construction projects involving industrial fluid systems.

Owner / Operator

Owner/operators need global resources and availability, and long-term support to go along with standardized product requirements. Swagelok’s global presence, breadth of products and production volume help maximize uptime and improve safety—all while controlling costs and mitigating environmental risks.

Package Vendors

Swagelok provides accurate and timely delivery of products and services to package vendors to keep projects on time. Coupled with training and onsite services, we can provide you what you need when you need it—anywhere in the world.

Jump to Section:

FPSO System and Products Map

Floating Production Storage and Offloading (FPSO) System and Products Map

We can support a variety of critical systems that must operate as designed to maximize operational efficiency, reliability, and safety on a typical FPSO.

Below-Hull Systems    Process & Analytical Instrumentation    Rotating Equipment    Turret Swivel Systems

Chemical Injection (CI) Systems    Instrument Panels    Grab Sampling Systems   Hydraulic Power Units (HPUs)

Topside Umbilical Termination Units (TUTUs)    Gas Distribution    Auxiliary Systems

Below-Hull Systems

FPSO Below-Hull Systems

Common Challenges

In recent years, many FPSOs have been converted from very large crude carriers (VLCCs). But increases in required crude oil and gas production capacities have resulted in larger topsides, leading to insufficient deck space area and crude oil storage capacity. Going forward, a heightened demand for newly built FPSO hulls is expected.

Specialty equipment located beneath the hull is typically inaccessible after installation—making long-term reliability essential. Tube and fittings must deliver leak-free performance, enabling critical applications including:

  • Compressed air system
  • Firefighting system
  • Valve remote control system
  • Inert gas system
  • Tandem offloading system

Swagelok can help with these products and solutions:

Process and Analytical Instrumentation

Process analytical instrumentation on FPSO vessels

Common Challenges

System design can pose a significant challenge at the project’s outset. The right expertise is not always readily available to make efficient product, material, and design choices for analytical systems.

Substandard installation during hookup and commissioning can drive up project lead times and result in leakage, emissions, and safety concerns.

High operational pressures and harsh oceanic environmental conditions have the potential to threaten the integrity of these critical systems.

Swagelok can help with these products and solutions:

Rotating Equipment

Rotating equipment on FPSO vessels

Common Challenges

Rotating equipment, including pumps, compressors, and turbines, are critical to overall operational reliability. Downtime can lead to production shutdowns and profit losses. Using dependable mechanical seal support systems will help keep these units online. If mechanical seal fluid is dirty or contains particulates, seal life can be negatively affected. Similarly, delivering the fluid at the wrong pressure or temperature can cause premature or even catastrophic seal failure.

Reliable hydraulic, instrumentation, and safety systems are essential and must operate under extreme pressure, temperature, and corrosive conditions.

Vibration is a key operational concern and mitigation includes tubing and fittings to reduce leak paths and ensure uptime. Stringent vibration and shock testing, including the U.S. Navy’s ASTM F1387 certification, are often a requirement to ensure safety at sea.

Swagelok can help with these products and solutions:

Turret Swivel Systems

Turret swivel systems in FPSO vessels

Common Challenges

The turret swivel system provides crucial connection points between topside and subsea systems. Some swivels utilize excessive hose lengths for these connections—but hoses require regular inspections and may require replacement after just a few years of service. If failure occurs, it could mean millions of dollars’ worth of lost production.

A well-designed installation, utilizing permanently installed tube with only short jumper hoses where flexibility is required, delivers a more reliable and lower maintenance installation.

Swagelok can help with these products and solutions:

Chemical Injection (CI) Systems

FPSO Chemical Injection (CI) Systems

Common Challenges

CI units must maintain highly accurate and repeatable chemical dosage into the production well to provide reliable production.

Leak-tight performance is absolutely essential to protect personnel and the environment, and any form of downtime can result in significant production losses.

A typical CI system may require hundreds of individual connections. Every one of them is a potential leak point. It requires significant time and labor to build, install, and commission leak-free CI systems to minimize safety and environmental risks.

We can help with quality valves and fittings, available in a range of materials, to provide leak-tight performance. Our field engineers can also inspect and provide installation verification on site.

Swagelok can help with these products and solutions:

Instrument Panels

Instrument Panels in FPSO Vessels

Common Challenges

Control panels play an important role in both efficient production and FPSO safety. Reliable assembly and design knowledge are required for panel performance and longevity.

Wellhead control panels are comprised of a variety of high-, medium-, and low-pressure subsystems. Costs for each must be optimized to achieve fit-for-purpose performance.

As a key safety mechanism, fusible plug panels must offer uncompromising integrity and reliability throughout the life of the vessel.

We can offer quality products to help ensure these systems achieve the performance they demand.

Swagelok can help with these products and solutions:

Grab Sampling Systems

Grab Sampling systems in FPSO Vessels

Common Challenges

Sample collection is not always intuitive, and system design requires extensive technical knowledge. Systems must be properly designed to deliver representative samples and allow operators to safely use the system, maintain chain of custody compliance, and make proper process control decisions.

Samples must be maintained at the right pressure and temperature to best represent true process conditions. Appropriate containers and collection are key.

Samples can sometimes be toxic, requiring special safety measures. Finding the right system requires evaluating your required sample pressure, temperature, phase, compatibility, and chemical composition.

We can provide standardized or customized fluid system solutions that meet your system requirements, whether you simply need the right components for your application or full system designs and builds.

Swagelok can help with these products and solutions:

Hydraulic Power Units (HPUs)

Hydraulic Power Units (HPUs) in FPSO Vessels

Common Challenges

Hydraulic power units provide power to topside, turret, and subsea production systems. HPU downtime can shut down these systems and cause significant financial losses each day. Depending on the mode of failure, they also can pose significant safety and environmental risks.

HPUs are complex pieces of equipment, comprising various pumps, motors, accumulators, instrumentation panels, valves, tubes, and tube fittings that must all work together harmoniously. HPUs can be long lead-time systems with component availability being a big driving factor.

We can provide quality products, modular solutions, and capital project support.

Swagelok can help with these products and solutions:

Topside Umbilical Termination Units (TUTUs)

Topside umbilical termination units on FPSO vessels

Common Challenges

TUTUs, the associated umbilical connection, and isolation panels must provide a leak-tight connection as well as an isolation point between topside and subsea equipment while ensuring safe isolation for maintenance activities.

These systems require high-quality and reliable components to perform their crucial functions. Failure can cause loss of containment or safety incidents, resulting in potential shutdowns and loss of production.

We can provide high-quality, reliable components for the pressures, flows, and fluids you require. Plus, we have the ability to provide a fully designed, assembled, and tested panel to the required specifications.

Swagelok can help with these products and solutions:

Gas Distribution

Gas Distribution in FPSO Vessels

Common Challenges

Whether for laboratory use or critical production functions like pressure regulation throughout a ship, substandard designed and installed gas distribution systems can cause major inefficiencies.

Unidentified leaks can pose a potential safety risk and also lead to costs that add up significantly.

Poorly designed gas panels can lead to maintenance and servicing problems.

The Swagelok® gas distribution program can provide standard gas distribution designs from the supply point to the point of use. This can include full system design, manufacture, installation, and support through our field engineering team.

Swagelok can help with these products and solutions:

Auxiliary Systems

Floating Production Storage and Offloading (FPSO) System and Products Map

Looking for assistance with additional packages and applications? We can deliver quality components and solutions for all of the following systems:


  • Inlet 3-phase separation
  • Nitrogen system
  • Sea water and cooling medium systems
  • Hypochlorite generation system
  • Heating medium system
  • Demineralized water system
  • Main power generation system
  • Gas mercury removal
  • Hydrocarbon dew-pointing
  • CO2 removal
  • Export gas compression and metering
  • MEG recovery
  • Condensate treating
  • Condensate stabilization
  • Flash gas compression
  • Fuel gas compression
  • MEG regeneration
  • Flare and vent systems
  • Close drain system
  • Open drain system


  • Diesel oil system
  • Lubricating oil system
  • Cooling water system
  • Potable and fresh water systems
  • Grey and black water systems
  • Bilge system
  • Exhaust gas system
  • Heli-fuel system
  • Remote sounding system
  • Condensate system
  • Slop water system
  • Ballast system
  • Hull HVAC system
  • Automation system
  • Telecommunication system
  • Mooring system

Swagelok Solutions and Total Support

Global Construction Services

Swagelok Global Construction Services can help with your FPSO constructionFrom initial concept through commissioning, FPSO construction involves stakeholders from around the world, making construction a unique logistical challenge.

No matter how complex your project may be, Swagelok® Global Construction Services can help with your fluid system needs:

  • We start by providing benefits at the pre-FEED and FEED stages. Our engineers consult with owner companies and EPCs, assisting with standardization and specifications while recommending efficiencies and optimized cost-saving configurations
  • As the project proceeds, our team will work with you to manage timelines and complex logistical and supply chain issues, helping to maintain job-site inventory and product availability throughout the project for a more predictable schedule
  • We can help coordinate between multiple entities, providing customized or international contracts, helping to understand government regulations, and clearing the way for on-time completion
  • We help manage construction costs, improve construction schedules, and achieve predictable performance for your small-bore fluid systems

Learn more about Swagelok Global Construction Services

Material ExcellenceMaterials Excellence

Corrosion can cause significant problems in marine environments—and we’re ready and equipped to help you select the right combination of materials to keep your systems running safely and smoothly for longer.

  • Our proprietary quality controls help every part meet the demanding needs of your application. We source all component materials from select vendors, with quality standards that are checked continuously and consistently for every part we make
  • Swagelok® 316/316L stainless steel tube fittings and instrumentation valves contain more nickel and chromium than required by ASTM standards for bars and forgings, granting our components higher resistance to localized corrosion
  • Higher-grade alloys, including 6-Moly, 2507 super duplex, Hastelloy® C-276, Inconel® 625, and more, are available for even greater corrosion resistance in the harshest environments. Our materials are available as NACE MR0175/ISO 15156 and NORSOK compliant
  • Special coatings and treatments are available, including jacketed tube, SilcoNert® coatings, electropolished finishes, heat tracing, and more
  • Engineered combinations—combining 316/316L fittings with other high-grade alloys into fully rated assemblies—can deliver the corrosion resistance you need in a cost-effective manner

Learn more about material selection

Swagelok Design and Assembly ServicesDesign and Assembly Services

Swagelok® Custom Solutions creates fabricated assemblies and packages that range from systems with just a few components to full panels and enclosures. Reduce labor costs, cut down lead times to finished package construction, and reduce waste via Swagelok-controlled assembly.

Benefits include:

  • Enhanced operational safety
  • Minimized onsite work and assembly
  • A predictable build schedule
  • Engineering compliance and documentation, including CAD and P&ID
  • Zero rework required for critical assemblies
  • Designs can include a range of client-specified OEM products

Our approach is collaborative. Whether you need Factory Acceptance Tests, quality documentation, electrical installation, or assembly anywhere in the world, we work closely with you to understand your needs. We can optimize your existing designs, provide configurable “off-the-shelf” designs, make specialized systems, or fully customize your build.

All packages are assembled, tested, and delivered with the backing of Swagelok’s Limited Lifetime Warranty.

Learn more about Swagelok Design and Assembly Services

Swagelok Field Engineering ServicesField Engineering

Proper training and optimized materials can contribute to a lifetime of reliable service. But how can you be sure that all third-party packages and construction adhere to your quality requirements?

Whether it’s material recommendations, standardization of engineered systems, or efficient installation, our field engineers are available to collaborate with you throughout all stages of the project.

  • We can provide fluid system installation oversight (FSIO) to help prevent errors throughout construction. This will minimize the need for rework during hookup and commissioning, as well as costly maintenance and repair once your asset is in service. Installation oversight services include training and competency management, onsite material management, and technical support, as well as inspection and system flushing guidance
  • Additionally, our field engineers can evaluate your critical systems to detect potential problems, optimize fluid and sampling systems, and advise on maintenance strategy
  • We have the global reach and local support necessary to bring that expertise to you—when and where it’s convenient

Learn More About Swagelok Field Engineering

Swagelok training and supportTraining and Support

Properly trained teams are highly beneficial in the rapidly evolving oil and gas industry. A well-trained team can contribute to safely operating, properly designed, and leak-tight systems.

Whether your personnel are designing, installing, or maintaining critical fluid systems, we offer a variety of training opportunities that can help you stay on schedule, minimize rework, improve performance and design, and enhance safety across your assets.

Our experienced trainers are well-versed in applicable trends, systems, processes, markets, regulations, and industry best practices. We can provide valuable education on use of tools, installation techniques, and safety protocols. Our courses combine classroom and virtual learning with practical, hands-on activities. Training can be conducted from our global facilities, onsite at your facility, or remotely via virtual training platforms.

Opportunities include:

  • Oil and gas essentials training
  • Tube fitting installation
  • Tube fitting inspection
  • Tube bending
  • Orbital welding
  • Cone and thread installation (for medium- and high-pressure systems)
  • Valve essentials
  • Regulator essentials
  • Materials science
  • Sampling system maintenance and design


Swagelok's Global Distribution Network Global Distribution Network

With Swagelok, you get global reach with localized support. That means wherever you are operating, we support your success by offering access to:

  • Local associates who have a deep understanding of your business needs and application requirements
  • Local stocked inventory and personalized onsite support and services, from component selection and design help to fluid system evaluations and recommendations on installation practices and system enhancements
  • Associates who know the culture, speak the language, and understand regional needs
  • Manufacturing, field engineering, technical expertise, and logistical support

Local specialists are backed by a global team of experts, ensuring you receive the recommendations you need to improve the performance, productivity, reliability, and safety of your fluid systems—all while controlling costs and mitigating environmental risks.

We maintain a global distribution network that spans more than 70 countries and involves 9400 associates, more than 200 authorized Swagelok sales and service center locations, 20 manufacturing facilities, and five global tech centers—all so you have access to the products and support you need when you need it.

Inventory AvailabilityInventory and Availability

Availability is a critical part of our brand promise. We ensure our sales and service centers have the right level of inventory for the products you need immediately:

  • Thousands of standard products in inventory
  • Over 6800 line items shipped daily
  • 99% shipping and inventory accuracy

Swagelok keeps significant amounts of raw materials in case of supply chain interruption. We also have a global team of professionals working with our suppliers to ensure supply chain stability.


Raw material traceability and quality control

Traceability and Quality Control

Raw material traceability is an integral part of our overall quality system throughout all phases of material receipt, manufacturing, processing, storage, and delivery. We hold to a higher standard for materials composition and ensure compliance from all of our raw materials suppliers via regular audits. All fittings are marked with the Swagelok name, material type, and trace identifier.

The quality system our fittings are manufactured under has been approved by:

  • ISO 9001:2000
  • UN/ECE R110
  • Canadian Registrations
  • CSA NGV 3.1 and 4.6
  • ASME N and NPT
  • The U.S. Navy
  • DNV GL (Det Norske Veritas)
  • American Bureau of Shipping
  • The Bureau Veritas
  • Lloyd’s Register

A Promise as Strong as Our Products

The Swagelok Limited Lifetime Warranty demonstrates our relentless commitment to quality and our customers. Every Swagelok® product is backed by this promise for the life of the product, so you can rest assured that your fluid system investment is protected.

Embark on a Successful Venture With Swagelok

We are ready to help make your FPSO project a success. With our global presence, local support, quality solutions, and industry-leading support, you can realize:

  • Enhanced safety
  • Minimized environmental impact
  • Optimized project execution
  • Improved uptime and reliability
  • Lower total cost of ownership

Interested in learning more about how we can help with your FPSO project? We offer localized service to customers around the world with our strategically located network of authorized sales and service centers.