Marine Urea Fluid Loops
JONSN Precision Micro Gear Pump: Marine SCR Denitration, AUS40 Constant‑Pressure Feed & Heavy‑Duty High‑Salt Marine Fluid Circulation
Anti-crystallization AUS40 urea dosing for ocean-going marine SCR loops — engineered for 40% high-concentration marine urea, IMO Tier III emission compliance, and 14-month continuous heavy-salt-mist dosing with zero-leakage magnetic static sealing under heavy diesel-load counterpressure.
Drawbacks of Conventional Marine Urea Dosing Pumps
Pumps currently integrated into marine SCR exhaust denitration systems suffer from critical failure modes under variable diesel loads, salt-mist corrosion, and high-concentration AUS40 urea crystallization — directly compromising IMO Tier III compliance and long-voyage operational safety.
Three Marine-Grade Technological Breakthroughs & Shipyard Testimonial
JONSN's solid technical advantages for marine SCR denitration come from a fully redesigned material stack (UK Victrex heavy-duty PEEK + mirror-smooth Zirconia nano-ceramic shafts) and an anti-vibration two-stage closed housing with magnetic zero-leak static seal, validated by an authentic 14-month field testimonial from a global ocean-going main engine shipyard.
JONSN R&D Testing Center Verified Reference
Advanced Microfluidic Dynamics Validation and System Flow Calibration Datasheet
Factory calibration datasheet covering working medium, thermal range, differential pressure, theoretical vs. real flow, volumetric efficiency and motor spec — measured on a high-precision full-inspection calibration bench at JONSN's Ganzhou Intelligent Manufacturing Base, with 65°C online hot-water flushing to validate anti-crystallization performance under marine urea loops.
| Parameter | Specification |
| Working Medium | 40% High-Concentration Marine Urea Solution (AUS40) / Alkaline Exhaust Denitration Additive |
| Liquid Viscosity | 1.00 to 3000 mPa·s |
| Specific Gravity | 0.8 g/cm³ |
| Design Temperature | Test range: -40°C to 90°C 65°C online hot-water flushing calibration to validate anti-crystallization |
| Differential Pressure | Design differential pressure: 4 bar Maximum system pressure capacity: 4 MPa |
| Pipe Dimensions | Suction line length: 1 m (DN10 mm) Discharge line length: 5 m |
| Theoretical Flow Rate | Qth = 5.104 L/min |
| Real Flow Rate | Qr = 5.063 L/min Equivalent output: 300.240 L/h |
| Urea Pump Model | MRB100SZKLE / MRB120SZKLE / MRB190SZKLE / MRC600SZKLE / MRE1200SZKLE |
| Motor Specification | Motors can be selected based on working conditions, including brushless motors, AC motors, stepping/servo motors, variable frequency motors, and explosion-proof motors. |
 |  |
Engineering Drawings for Marine SCR Skid Integration
Engineering Drawings for Marine SCR Skid Integration: Offering comprehensive 2D mechanical assembly engineering drawings and structural layout metrics to assist global ship machinery OEMs in seamless embedded co-design.
How JONSN Attains Anti-Crystallization Standards for Marine Urea Pumps?
Advanced CNC infrastructure seals fluidic surface roughness to eliminate manual deburring variance and secondary micro-scratch risks.
Rigid Quality Control: Operating under T\u00dcV Rheinland ISO9001:2015 compliance, JONSN executes a "One Item, One Code" full-process tracking system. All geometric parameters are inspected by German ZEISS CMM at 22.7°C dust-free workshop, cross-batch volumetric variance controlled within ±0.5% to guarantee consistent 24h ocean-voyage delivery safety.
Target Product Recommendation
JONSN provides two dedicated micro gear pump series matching the most demanding stages of marine SCR urea dosing circuits — from small/medium coastal vessel systems to ocean-going main engine post-treatment lines with heavy counterpressure and high-salt-mist environments.
Global Classification Society Type Approval
Premium Classification substitute Hub: Delivering compliant alternatives for harsh industrial marine loops with extreme TCO savings. JONSN precision micro gear pumps have proudly obtained Type Approval certifications from global classification societies, including CCS, BV, ABS, NK, and LR perfectly verifying compliance with the most rigorous global marine energy supply chain audits.
Frequently Asked Questions
How does JONSN avoid crystallization jamming on marine SCR urea pumps?
Reciprocating pumps retain residual liquid forming crystal particles. JONSN pumps built with UK Victrex PEEK gears + mirror-smooth Zirconia ceramic shafts minimize friction scratch & crystal adhesion, while the 85°C online hot-water flushing validation eradicates dead-volume crystallization to avoid pump core jamming during ocean-voyage shutdowns.
Can JONSN marine urea pumps resist 40% AUS40 urea & heavy salt mist?
Yes. Operating temp range -40°C - 160°C, full marine-grade 316L housing + ceramic flow path withstand alkaline AUS40 corrosion & heavy salt mist without geometric deformation or localized leakage, validated across 14 months of continuous ocean-voyage operation.
Can JONSN sustain 4 MPa injection counterpressure for ocean vessels?
Yes. Integrated two-stage CNC-machined housing eliminates assembly error & internal bypass, delivering stable dosing performance at max 4 MPa backpressure with volumetric efficiency steady at 94.3% under variable diesel load.
Does JONSN hold international marine classification certificates for the global ship supply chain?
Yes. Full CCS / BV / ABS / NK Type Approval — JONSN supports seamless embedded integration into global shipbuilding OEM projects with full low-TCO replacement of expensive European marine urea dosing brands.
