Atlas Copco BOG Compressor & Expanders
- Cryogenic BOG Compressor Overhaul
- Inlet Guide Vane Upgrade
- Vibration Analysis
- Parts
Cryostar BOG Compressor & Expanders
- Cryogenic BOG Compressor Expander Overhaul
- Performance Upgrade
- Parts Manufacturing
BOG COMPRESSOR SERVICES
Overhaul, upgrade, parts and field service for Atlas Copco and Cryostar BOG compressors and turbo-expanders — restored to OEM specification or better.
Overhaul
Full strip-down, inspection, reconditioning and reassembly — in our facility or on-site at your plant or vessel. Every unit is returned to operational specification with a full inspection report.
Parts Supply & Manufacturing
Can’t wait on OEM lead times? We manufacture and supply critical internal parts in-house — wheels, impellers, bearings, shafts, shaft seals, inlet guide vanes and diffusers. Same fit. Same function. Faster delivery.
Reverse Engineering
No drawing. Discontinued part. Heavily worn original. We reverse engineer from the physical component and deliver a replacement that matches the original fit and function exactly.
Reconditioning
Not every part needs replacing. We assess, recondition and return parts to service where viable — reducing your costs without compromising reliability
Performance Upgrade & Redesign
Changes in gas composition, flow rate, pressure or temperature? We redesign and upgrade components — inlet guide vanes, diffuser cones, expander shrouds — to match your current operating conditions and improve efficiency.
Vibration Analysis & Dynamic Balancing
We identify and resolve vibration and rotor instability issues before they become failures — including full dynamic balancing and bearing assessment.
Field Service
Our engineers come to you. Shipboard, terminal, or plant — we support your overhaul and inspection cycles on-site, wherever in the world you operate.
PARTS WE SUPPLY
Our in-house manufacturing capabilities utilize advanced 5-axis milling machines and CNC lathes to deliver precision-engineered compressor components with exceptional reliability, performance, and compliance with industry standards.
Key Components
- Wheels & Impellers
- Hydrodynamic Bearings
- Inlet Guide Vanes
- O-Rings
- Gaskets
- Shaft Seals
- Diffusers
- Labyrinth Seals
FAQ
Frequently Asked Questions About Safety Valve Services
Answers to common questions about cryogenic safety valve overhaul, testing, spare parts, and field service support.
What is a boil-off gas (BOG) compressor?
A boil-off gas (BOG) compressor compresses LNG vapor generated during storage or transfer so the gas can be recovered, recondensed, used as fuel gas, or returned to the LNG process. Reliable compressor performance helps improve plant efficiency, reduce product losses, and minimize emissions.
What BOG compressor services does TriSeas Cryogenics provide?
We provide inspection, troubleshooting, overhaul, repair, field service, condition assessment, vibration analysis, alignment, commissioning support, preventive maintenance, performance evaluation, and spare parts support for LNG boil-off gas compressors operating in marine and onshore facilities.
Can you support different BOG compressor manufacturers?
Yes. Our engineers have experience supporting many major boil-off gas compressor manufacturers used throughout the LNG industry. We provide independent engineering, inspection, repair, overhaul, maintenance, and spare parts services for compatible equipment. TriSeas Cryogenics is an independent service provider and is not affiliated with or authorized by any OEM
Do you provide onsite field service for BOG compressors?
Yes. Our field service engineers can support LNG terminals, LNG carriers, FSRUs, FLNG facilities, industrial gas plants, and petrochemical facilities with inspection, troubleshooting, maintenance supervision, commissioning assistance, shutdown support, and technical consulting.
TRUSTED BY GLOBAL LNG OPERATORS
What Our Clients Say
Real-world feedback from LNG terminals, shipping companies and petrochemical operators worldwide.
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Get in Touch
Tell us about your requirement — service, spares or upgrade — and we’ll respond in 24 hours.
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