Marine Refrigeration and Nitrogen Services in Rotterdam
Office
Trident Maritime Systems (Callenberg B.V.), Rotterdam-Hoogvliet, delivers refrigeration and nitrogen services to the marine sector. Our engineers are certified under STEK and F-gas regulations, with Rotterdam operating as the RFN head office for a network that supports vessels worldwide.
Our Solutions
OUR SOLUTIONS
Onboard Refrigeration & Nitrogen: Service and Maintenance
We deploy certified teams to stabilise, diagnose and optimise marine refrigeration and nitrogen systems while the vessel remains operational. Typical work includes recovery and evacuation, targeted leak finding, recharge to specification and control set up to restore performance. You receive a concise service record with findings, actions taken and next-step recommendations to minimise repeat faults.
Typical deliverables
Fault diagnosis with remedial actions completed onboard
Recovery, vacuum and recharge to specification
Controller and alarm checks with parameter log
Service report highlighting risks, parts needs and follow-ups
OUR SOLUTIONS
Commissioning and Surveys
We manage end-to-end commissioning for newbuild or retrofit systems and deliver condition surveys to guide maintenance planning. Scope includes pre-commissioning checks, pressure and tightness testing, evacuation, charging, functional testing of compressors and fans, control loop tuning and compliance-focused inspections.
Typical deliverables
Verified pressure/tightness and deep vacuum results
Functional tests across cooling and heat-load scenarios
Controller set-up, alarm mapping and trip tests
Survey report with condition grading, leak-check results and action plan
OUR SOLUTIONS
Compressor Overhaul and Retrofits
We perform onboard minor overhauls and plan workshop overhauls where required, with dimensional checks and post-overhaul testing. Where appropriate, we propose retrofit pathways to lower-impact refrigerants, focusing on reliability, availability of consumables and control tuning.
Typical deliverables
Scope of work with inspection points and tolerances
Replacement of wear components to specification
Test run with vibration, temperature and pressure checks
Retrofit options with component and controls implications
OUR SOLUTIONS
Spares, Kits and Training
Rotterdam supports fast turnaround on critical spares and service kits, reducing time to restore capacity. We also deliver targeted RFN training for crew and engineers, covering safe handling, diagnostics, record-keeping and first-response stabilisation.\
Typical deliverables
Verified pressure/tightness and deep vacuum results
Functional tests across cooling and heat-load scenarios
Controller set-up, alarm mapping and trip tests
Survey report with condition grading, leak-check results and action plan
OUR SOLUTIONS
Parts, Tools and Equipment
We support shipboard maintenance with supply and guidance for refrigerants and service equipment.
Typical deliverables
Refrigerant gases and cylinders: common marine refrigerants in 12 L and many in 61 L cylinders (availability varies by gas). Supply covers common marine applications, with guidance on selection, safe handling and record-keeping. Deliveries can be aligned with planned maintenance to reduce downtime and help crews keep accurate charge logs.
Recovery units and vacuum pumps: sized to plant duty (Promax and Robinair where specified)
Service manifolds, digital scales and leak detection: accessories for accurate charge and leak localisation
Self-contained marine A/C units: 10.5 kW and 17.5 kW, 50/60 Hz, seawater-resistant condenser
Typical deliverables
Supply to order with documentation
Guidance on handling, storage and labelling
Guidance on handling, storage and labelling
Equipment shortlist, hose/adaptor interface guidance
Emergency readiness at sea
Our Refrigeration Service Kit enables recovery, evacuation, fix and recharge workflows without waiting for shore assistance. Contents include recovery unit, vacuum pump, electronic vacuum meter, weighing scale, gauge set with hoses, R-32/R-410A adaptor, leak detector, tools and cylinder adaptors.
The Emergency Repair Kit covers essential fittings, copper tube and a flare tool, and is available Ex Works Rotterdam for rapid dispatch.
Need immediate RFN support in port or at sea?
Request assistance today.
Certifications
STEK and F-gas certified personnel for regulated refrigeration work.
RFN Head Office in Rotterdam with a worldwide support footprint via flying squads and partner locations.
BITZER - We utilize their pioneering, high-efficiency compressors and components to ensure the reliable, world-class performance of our systems.
Coverage
We mobilise from Rotterdam-Hoogvliet and operate regional service stations. From these ports we dispatch parts and service kits and deploy flying squads to attend vessels in other areas as required.
Service enquiries – onboard service, commissioning, surveys and repairs
Europe
Rotterdam, Netherlands
Hamburg, Germany
Aberdeen, UK
Cadiz, Spain
Piraeus, Greece
Americas
Fort Lauderdale / Miami, USA
Houston, USA
Middle East & Africa
Dubai, United Arab Emirates
Cape Town, South Africa
Asia
Busan, South Korea
Shanghai, China
Singapore, Singapore
Need support or a quote?
Get a quote for everything from product pricing and availability to onboard service, commissioning, and all surveys and repairs.
Contact Rotterdam
Callenberg B.V., Klompenmakerstraat 66-68, 3194 DE Rotterdam-Hoogvliet, Netherlands
Email: ctg.emea.refrigeration@tridentllc.com
For parts orders please address purchase orders to Callenberg B.V., Rotterdam.
FAQs
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Yes. Our personnel are certified under STEK and F-gas regulations.
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Yes. The Refrigeration Service Kit supports recovery, vacuum, repair and recharge at sea to stabilise the system until further assistance is required.
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Common refrigerants are available in 12 L and many in 61 L cylinders. Other gases are available on request.
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Yes. Self-contained units in 10.5 kW and 17.5 kW, suitable for 50/60 Hz, with seawater-resistant condenser.
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Yes. RFN training can be provided onboard or at our facility.