The maritime industry is one of the most demanding fields for equipment: a single vessel often remains in service for over twenty years, and once a critical component fails at sea, the cost is incalculable. That is precisely why the marine supply chain has a universally recognized threshold—classification society certification.

With the arrival of a new certificate from Lloyd’s Register (LR, UK) in September 2026, JONSN Qiongsen gear pumps have formally assembled approvals from all five major international classification societies—CCS, BV, ABS, NK and LR. Together with EU CE certification and German TÜV Rheinland ISO 9001 system certification, JONSN now holds seven international ‘trust credentials.’

How did a Chinese pump manufacturer manage to collect, one by one, the approvals of all five major classification societies? This article breaks it down for you.

I. Classification Societies: The ‘Gatekeepers’ of the Marine Supply Chain

From the drawing board to launch, classification societies are involved throughout: design review, material inspection, equipment verification, construction survey, and class certification. Any outfitting component must pass the classification society’s scrutiny before it can be installed—a trust mechanism forged over a century by the global maritime industry.

China Classification Society (CCS), France’s Bureau Veritas (BV), Lloyd’s Register (LR, UK), the American Bureau of Shipping (ABS) and Japan’s ClassNK (NK)… behind each society stands an independent and rigorous technical specification system. For the same quality system to withstand the scrutiny of five different regulatory frameworks takes more than a stroke of luck—it requires day-in, day-out process consistency.

II. The Certification Landscape: Seven Certificates, Each with Solid Grounding

III. ‘Works Approval’ vs. ‘Product Inspection’: A Single Word Apart, but Worlds of Difference in Value

What BV’s MODE II approves is not a single batch of products, but an entire factory: based on specification NR320, BV conducts a full assessment of the production facilities and quality management system of JONSN’s Ganzhou plant. This is called ‘Works Approval’—once obtained, it means subsequent products can be delivered in batches under BV certification, serving as the ‘qualification certificate’ for sustainable shipment.

By contrast, the certificates from NK, CCS, ABS and LR are ‘individual product inspections’: a surveyor is present on site to perform hydraulic tests, performance tests and structural checks on a specific pump. Only after it passes and is steel-stamped and certificated can that pump be installed on the designated vessel—a ‘report card’ earned pump by pump.

One is a ‘qualification’; the other is a ‘report card.’ In JONSN’s hands, there is both the ‘qualification’ of Works Approval and the individual ‘report cards’ spanning seven consecutive years, covering different media and different shipowners—and that is the full meaning of ‘from dual works approvals to approvals by the five major classification societies.’

IV. Behind Every Certificate Stands a Real Pump

■ NK (2019): MRB120SZKLF, supplied to vessel No. CX0677 of Chengxi Shipyard—JONSN’s earliest classification-society report card, subjected to rigorous Japanese-standard inspection right from its debut.

■ ABS (2023): MRE 18/37 methanol feed pump, supplied to Nantong Ocean Equipment, bearing ABS’s ‘Maltese Cross’ steel stamp—squarely targeting methanol, the new-generation clean-fuel track.

■ CCS (2023): MRE1200SZKLE, for urea medium, dedicated to marine SCR exhaust gas purification systems; passed 2.1 MPa hydraulic strength test and performance tests.

■ LR (2026): MRA7/13 urea metering pump, passed 18 bar hydraulic test, supplied to vessel No. 13808 of Germany’s Lürssen shipyard—a world-leading luxury yacht builder.

From urea SCR to methanol fuel, from merchant ships to top-tier yachts—these ‘invisible pumps’ are running steadily inside the exhaust and fuel-supply systems of vessels around the world.

V. Why the Marine Industry ChoosesJONSNMagnetic Gear Pumps

In marine SCR and fuel-supply applications, the two greatest fears are leakage and inaccurate metering.

JONSN QiongsenJONSN Qiongsen magnetic gear pumps replace the traditional mechanical shaft seal with magnetic coupling: power is transmitted through the containment shell via a magnetic field, and the medium is fully enclosed within the pump body, achieving zero leakage by design. The positive-displacement gear structure guarantees a constant displacement per revolution, so metering accuracy is unaffected by back-pressure fluctuations. Simple structure, no dynamic seal points, and dry-run protection—these are precisely the reliability attributes most valued by classification societies during inspection and by shipowners at acceptance.

In marine exhaust-treatment SCR systems, the commonly used configuration codes and models for JONSN Qiongsen urea-dedicated pumps are:

VI. For Those Choosing a Pump

Atop ocean-going giants and luxury yachts, JONSN pumps never steal the spotlight—yet they are indispensable.

The more precise the world becomes, the more it needs a ‘steady heart.’
ChooseJONSNJONSN Qiongsen, so that every drop of fluid arrives precisely where it should.