On the winding waters of the Pearl River, a cargo ship carrying 200 containers sails steadily. Unlike traditional vessels, this ship's fuel tank holds liquefied natural gas (LNG) instead of conventional fuel oil. Deep within its fuel supply system, smart pressure transmitters monitor critical pressure parameters in real time with high stability, ensuring the safe operation of the LNG-powered vessel.
This is just one example of the broader "oil-to-gas" conversion trend in China's shipping industry. Following the delivery of the country's largest single batch of 29 LNG-retrofitted ships in Zhuhai in early 2023, a green shipping revolution-exemplified by the "Gasifying the Pearl River" initiative-is advancing at an unprecedented pace.
Ship "Oil-to-Gas" Conversion: A Green Revolution in Shipping with Sensing Technology as a Core Pillar
As global environmental requirements grow increasingly stringent, the transition of ship power from traditional fuel oil to LNG has become an irreversible trend. Replacing conventional marine fuel with LNG can reduce carbon emissions by more than 20%, eliminate sulfur oxide emissions entirely, and cut particulate matter by over 90%. In this green revolution, a seemingly inconspicuous yet critically important device-the smart pressure transmitter-silently safeguards the safe operation of every retrofitted vessel.
Pressure Monitoring Challenges in Ship "Oil-to-Gas" Conversion
Ship "oil-to-gas" conversion is far more than a simple fuel swap. The unique characteristics of LNG fuel systems pose unprecedented challenges to pressure monitoring. Pressure transmitters act as the system's "nerve endings," sensing pressure changes at key nodes in real time:
High vibration interference, data prone to drift: The rolling motion of the vessel during navigation and equipment-induced hull vibrations make it difficult for traditional pressure instruments to operate stably.
High safety risks, stringent explosion-proof requirements: LNG onboard is highly flammable, and fuel tanks and pipelines are subject to potential leakage risks at any time.
Severe corrosion challenges, high ingress protection requirements: Harsh operating conditions-such as seawater splashing and salt spray crystallization-pose serious corrosion threats to measurement equipment.
Solution: MDM7000 Series Products – Safeguarding LNG Safety Throughout the Voyage
To address these challenges, the customer ultimately selected the MDM7000-DP and MDM7000-GP smart pressure transmitters. This series offers vibration effect of <0.1%, maintaining accurate measurement with a standard ±0.075% F.S. even under severe vibration conditions.
In addition, the MDM7000 products carry domestic and international explosion-proof certifications, along with IP67 ingress protection rating and WF2 anti-corrosion testing, providing safety assurance in flammable environments and perfectly withstanding the highly corrosive marine conditions-ensuring reliable, safe measurement for vessel operations.
MDM7000 Smart Pressure Transmitter: Eight Core Strengths with Global Ship Classification Society Approvals!
Global ship classification society approvals, compatible with international shipping: Certified by DNV, CCS, RS, NK, ABS, BV, KR, and LR – a total of eight global classification societies – meeting the marine product needs of customers worldwide.
Full-spectrum explosion-proof certifications, maximum safety level: Complies with NEPSI and PCEC (China) flameproof & intrinsic safety requirements, as well as ATEX, IECEx, and CSA international explosion-proof certificate standards.
Ultra-wide range, precise pressure measurement: Differential pressure measurable down to -100~100 Pa in the minimum range.
Ultimate accuracy, reliable data: Accuracy up to ±0.05% FS and ±0.075% FS.
Multiple housing options, adaptable to different conditions: Aluminum alloy housing, 316L stainless steel housing, and low-copper-zinc housing.
Modular design, low maintenance cost: Modular design with dual-chamber structure, IP67 protection rating, and low maintenance costs.
High static pressure design, meeting fine measurement needs: Static pressure up to 42 MPa.
Wide temperature compensation with LCD display: -40°C to 70°C.
Excellent EMC performance with authoritative certifications: Outstanding EMC performance with CE and RoHS certifications.
Future Outlook: Smart Pressure Transmitters Driving Shipping's Clean Energy Transition
With its exceptional stability and ultra-high reliability, the MDM7000 smart pressure transmitter will continue to provide safe, reliable, and professional pressure measurement solutions for the shipping industry, supporting a genuine green transformation for China and the global maritime sector. As shipping steers toward a greener future, the smart pressure transmitter-though small in size-carries the vital responsibility of ensuring the safety of every voyage. It is the unseen guardian behind the success of ship "oil-to-gas" conversions, quietly protecting every step of shipping's green transition from behind the scenes.
If you face pressure, level, temperature, or other measurement challenges in ship oil-to-gas conversion, offshore engineering, or similar projects, please feel free to contact LEEG. We will tailor a custom measurement and control solution to help ensure your project's safe and efficient delivery!
