Engineers at the world’s leading LNG facilities trust us with their critical rotating equipment.
Independent Cryogenic Services
Cryogenic Pump Repair, Upgrades and Engineered Parts.
Repair, overhaul and engineered parts for cryogenic pumps manufactured by leading OEMs including Nikkiso, Ebara, JC Carter, Atlas Copco, Cryostar and others.
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Cryogenic Pumps Serviced
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Cryogenic Parts Supplied
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Cryogenic Insulation Upgrades
TRUSTED BY GLOBAL LNG OWNERS.
Shell
ADNOC
Nakilat
Borouge
Qatargas
Reliance
Nigeria LNG
OQ Oman
Shell
ADNOC
Nakilat
Borouge
Qatargas
Reliance
Nigeria LNG
OQ Oman
PROUD MEMBER OF
All brand names and trademarks are the property of their respective owners.
Our Expertise
EXPERIENCE ACROSS MAJOR CRYOGENIC EQUIPMENT
Our engineers have experience servicing equipment manufactured by Ebara, Nikkiso, JC Carter, Atlas Copco, Cryostar and other OEMs across LNG, FSRU, FLNG and petrochemical facilities.
CRYOGENIC PUMPS
Overhaul, upgrade and parts for cryogenic pumps
Nikkiso
Loading Pumps · Product Pumps · Circulation Pumps · HP Send-out Pumps
Ebara
Loading Pumps · Product Pumps · Circulation Pumps · Marine Cargo / Spray Pumps · HP Send-out Pumps · Expanders
JC Carter
Loading Pumps · Circulation Pumps · HP Send-out Pumps · Marine Cargo / Spray Pumps
Shinko
Marine Cargo / Spray Pumps
ACD
Loading Pumps · Circulation Pumps
BOG COMPRESSORS
Overhaul, upgrade and parts for BOG & expander units.
Atlas Copco
BOG Compressors · Turbo-expander · Compander
Cryostar
BOG Compressors · Turbo-expander
OEM Disclaimer
TriSeas International, Inc. is an independent service provider and is not affiliated with, authorized by, sponsored by, or endorsed by any OEM. OEM names are used solely to identify equipment we service.
WHAT WE DO
TriSeas delivers end-to-end technical support across cryogenic pumps, BOG compressors and LNG insulation systems — from emergency spare parts to full overhauls and performance upgrades.
Repair, upgrade and spare parts for all makes of cryogenic pumps — restoring equipment to specified performance requirements
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Cryogenic Pumps
Repair, upgrade and spare parts for all makes of cryogenic pumps — restoring equipment to specified performance requirements
- New Parts Manufacturing
- Field Service Support
- Major Overhauls
- Lifetime Extension
- Vibration Monitoring Upgrade
- Performance Upgrade and Retrofit
- Cryogenic Camera Inspection Services
PROVEN RESULTS
Real-world success stories where TriSeas engineering innovation, rapid response, and precision retrofits deliver measurable performance gains for LNG operators worldwide.
A snapshot of measurable performance we deliver. Full project references on request.
Pipeline Insulation Repair & Upgrade
TriSeas executes turnkey cargo-tank insulation upgrades for LPG, LEG, CO₂, and non-membrane LNG vessels.
Our insulation enhancements reduce BOR, support FLNG/FSRU conversions, and ensure full compliance with class inspection standards.
Cargo Tank Insulation Retrofit & Maintenance
TriSeas executes turnkey cargo-tank insulation upgrades for LPG, LEG, CO₂, and non-membrane LNG vessels.
Our insulation enhancements reduce BOR, support FLNG/FSRU conversions, and ensure full compliance with class inspection standards.
Newbuild Cryogenic Tank Insulation
TriSeas delivers class-approved cryogenic insulation systems for all new LNG, LPG, and Ethylene carriers.
Our solutions ensure precise thermal performance, faster installation, and long-term reliability for LNG cargo and fuel tanks.
Expander Bearing Retrofit — Reliability Enhancement
Implemented a bearing retrofit solution for a critical expander unit experiencing vibration and thermal distortion.
The engineered bearing housing upgrade reduced shaft vibration, stabilized rotor alignment, and ensured reliable long-term operation.
Expander Overhaul & Performance Restoration
Our specialists executed a full mechanical and aerodynamic overhaul of a turbo expander operating under cryogenic conditions.
Precision balancing, shroud re-machining, and seal re-engineering restored OEM-level efficiency and prevented recurrent side-leakage failures.
Expander Compressor Redesign — Efficiency Upgrade
Redesigned an aging expander compressor assembly, introducing improved inlet guide vanes, diffuser cones, and expander shrouds.
The upgrade increased efficiency by 18%, boosted power output by 180%, and raised production throughput by 130%, extending the unit’s operating life significantly.
Emergency Cargo Pump Repair
When a critical LNG cargo pump failed mid-operation, TriSeas mobilized its rapid-response team within six hours
The complete teardown, rebuild, and performance testing were executed on a fast-track schedule — restoring full operation with zero safety deviations or cargo delays
In-Tank LNG Pump Performance Upgrade
Our engineering team successfully executed a full overhaul of a cryogenic in-tank pump system, including redesigned impellors and upgraded thrust balancing system.
The upgrade delivered 25% higher efficiency and extended service life by 25 years.
High-Pressure LNG Pump Retrofit Program
Our engineering team executed a comprehensive retrofit of legacy high-pressure LNG pumps — including new motor housings, end bell assemblies, diffuser assembly, and bearing systems., improving reliability under extreme operating conditions.
The solution eliminated the root cause of a recurring mechanical failure, delivering 40% lower cost and 50% faster turnaround than conventional OEM repair programs.
WHERE WE WORK
Industries We Serve
TriSeas provides critical cryogenic repair, retrofit and MRO services across the global energy sector — from LNG carriers to petrochemical plants — helping operators maximize uptime and efficiency through technical excellence.
TRUSTED BY GLOBAL LNG OPERATORS
What Our Clients Say
Real-world feedback from LNG terminals, shipping companies and petrochemical operators worldwide.
Work With Us
Get in Touch
Tell us about your requirement — service, spares or upgrade — and we’ll respond in 24 hours.
Send an Enquiry
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Global Reach
Sales Representation
UK · Spain · UAE · Qatar · Singapore · Nigeria · Malaysia · Indonesia · Algeria · Oman · Kuwait · India · Egypt · Angola
Service facilities
USA · UK · Spain · Singapore · UAE · India
