PureSOx
As the marine industry evolves, there are still good reasons to choose a SOx scrubber. Alfa Laval PureSOx offers economical fuel sulphur compliance, both with global limits and with those in the expanding number of Emission Control Areas (ECAs). Effective in open-loop or closed-loop scrubbing, PureSOx can be delivered as a hybrid scrubber system with both open-loop and closed-loop modes. Just as importantly, it comes with Alfa Laval’s long experience and global service backing.
Alfa Laval is your partner in SOx compliance
- Over 100 years of marine industry experience – including over 50 years of marine scrubber experience
- Proven removal of SOx (>98%) and particulate matter through exhaust gas cleaning
- Hundreds of marine scrubbers in proven SOx compliance worldwide
- A truly global network for scrubber service and support, offering scrubber spare parts, scrubber training, scrubber maintenance and more
- Opportunities for continuous scrubber optimization
Since the first PureSOx scrubber system went to sea in 2009, Alfa Laval has kept vessels in fuel sulphur compliance and SOx scrubbers working at their best. Besides having lower fuel costs, PureSOx owners benefit from Alfa Laval’s long experience, high production quality and deep scrubber knowledge.
PureSOx scrubber systems are compact and handle multiple exhaust gas sources. They are available in open-loop, closed-loop or hybrid scrubber configurations, with Alfa Laval’s leading water treatment technology to support closed-loop operation. Installed smoothly on hundreds of vessels, all PureSOx systems are in compliance today. Consequently, their owners continue to trust Alfa Laval for regular service and ongoing optimization.
Marine service network
Our dedicated Marine Service Network supports you with parts and expertise, wherever you are, whenever you need it. By ensuring greater uptime, availability and optimization, we help bring you peace of mind, and maximize your return on investment.
Securing compliance with care – service examples
Our portfolio contains a wide range of services to secure SOx scrubber performance. By taking advantage of preventive maintenance, continuous optimization and more, you can rely on your PureSOx system for cost-effective compliance throughout your vessel’s lifetime.
PureSOx spare parts can be shipped anywhere within 24 hours, and we can even arrange tailored stocks.
Save with a PureSOx upgrade that fine-tunes water flow in open loop and cuts energy use by up to 25%.
Safeguard compliance and reduce the risk of unscheduled downtime by letting us identify potential issues – along with opportunities for optimization and upgrades.
Use your time in dry dock to increase PureSOx lifetime and efficiency with a tailored overhaul kit prepared as part of a Condition Audit.
Simplify proof of compliance by swapping in pre-serviced units when calibration or replacement is required. Available for compatible water sensors and gas analyser modules.
Annual gas analyser calibration
If your PureSOx system has a gas analyser from ABB, we can handle the yearly calibration as a certified ABB service partner.
Optimize scrubber performance and lower cost of ownership by increasing crew skills in maintenance and troubleshooting.
Customized scrubber service agreements
Alfa Laval Service Agreements are a tailor-made way to lower OPEX and secure scrubber uptime. They combine your choice of services from our broad PureSOx offering, ranging from scrubber spare parts to scrubber connectivity. Over 80% of PureSOx customers take advantage of the peace of mind and predictable annual costs.

Why use a scrubber to meet SOx regulations?
Fuel prices are unpredictable, but high-sulphur fuel is consistently less expensive than low-sulphur options. With a PureSOx scrubber, you can leverage the price difference while reducing SOx emissions to the equivalent of low-sulphur fuel. You get lasting fuel economy – and a rapid return on your SOx scrubber investment.
Installing an Alfa Laval PureSOx scrubber system
Alfa Laval's unique insights and project management experience – developed through hundreds of PureSOx projects and around 150 installations – are assurance for a successful SOx scrubber installation.
Alfa Laval PureSOx in action
Curious to see how a retrofit of a scrubber takes place? Watch our film of the retrofit on board the M/V Valentine to see how it's done.
Technology
PureSOx scrubber configuration
Alfa Laval PureSOx can be configured in three different operating arrangements – all of which can handle multiple exhaust gas sources. The most popular choice is a hybrid scrubber, which balances economy with operating flexibility.
Energy savings with PureSOx Energy Reduction Mode
PureSOx can save energy and costs when equipped with Energy Reduction Mode. Optional for new scrubber systems and available as an upgrade, Energy Reduction Mode optimizes the flow of water through the scrubber. Instead of relying on engine load, it uses real-time compliance measurements to pump no more water than necessary – which reduces OPEX, lowers CO2 emissions and improves your vessel’s EEXI.

The emissions compliance corner
Read blogs by our expert Kate Schrøder Jensen, Alfa Laval’s specialist in emissions regulations and liaison with MARPOL. You can get all the information around compliance, regulations around scrubber technology.

Contact us
Talk to us about Alfa Laval PureSOx scrubber systems
For more information about PureSOx scrubber systems or a PureSOx quotation for your vessel, contact us below or see where you can meet us in person. We are always close at hand.
Contact us
Alfa Laval Nijmegen BV
Kerkenbos 1016
6546 BA Nijmegen
The Netherlands
Telephone: +31 24 352 31 00
E-mail: puresox@alfalaval.com
24/7 service desk: +46 4636 7700
Service e-mail: marine.service@alfalaval.com