Alkaline Water Electrolysis Hydrogen
JONSN Precision Micro Gear Pump Application in the Hydrogen Production Industry Using Potassium Hydroxide (KOH) (Alkaline) ALK Electrolysis.
24/7 pulse-free KOH electrolyte circulation for alkaline water electrolyzers — engineered for 30% high-concentration alkaline lye loops, hydrogen skid systems, and long-cycle mass-production hydrogen plants with zero-flow-drift reliability under continuous non-lubricating alkaline operation.

Drawbacks of Conventional Pumps in Alkaline Electrolyzer Loops
Pumps currently integrated into ALK electrolysis hydrogen production lines suffer from critical failure modes that destroy membrane electrode durability, cause hydrogen crossover alarms, and break the 24/7 maintenance-free operation required by mass-production hydrogen plants.

Three Electrolyzer-Grade Technological Breakthroughs & Customer Feedback
JONSN's solid technical advantages for ALK hydrogen production come from a fully redesigned material stack (UK Victrex wear-resistant PEEK + 100% Zirconia nano-ceramic shaft pins) and a fully integrated two-stage housing with magnetic static leak-free seal, validated by a 300-unit bulk order from Tianjin Hydrogen Energy in July 2024.

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, perfectly matching the harsh demands of 30% KOH alkaline electrolysis at 70-90°C continuous operation.
| Parameter | Specification |
|---|---|
| Working Medium | 30% High-Concentration Alkali Solution (KOH) Liquid Viscosity: 1.00 to 3000 mPa·s Specific Gravity: 1.2 g/cm³ |
| Design Temperature | Operating range: -40°C to 90°C |
| 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 | Q_th = 5.304 L/min |
| Real Flow Rate | Q_th = 5.004 L/min Equivalent output: 300.240 L/h |
| Volumetric Efficiency | Effhydr = 94.3% Absolute flow precision control under 4 bar low-viscosity differential pressure. |
| 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. |
Millimeter-Scale Space Dimensions Alignment
Millimeter-Scale Space Dimensions Alignment: Providing comprehensive 2D engineering drawings and clearance specifications to ensure seamless space co-design and reduce installation footprints for global hydrogen integrators.
How JONSN Guarantees Hydrogen Pump Quality?
Simulated by ANSYS, Sculpted by World-Class CNC Centers, Verified by ZEISS Metrology.
Rigid Quality Control: Operating under TÜV Rheinland ISO 9001:2015 compliance, JONSN executes a full-process digital "One Item, One Code" tracking system. All geometric parameters are inspected by German ZEISS CMM & Keyence digital coMParators at 22.7°C dust-free workshop, cross-batch deviation controlled within ±0.5% to guarantee consistent 24/7 electrolyzer mass-production safety.



Target Product Recommendation
JONSN provides three dedicated micro gear pump series matching the most demanding stages of ALK electrolysis hydrogen fluid circuits — from advanced low-flow circulation stages to coMPact skid integration for limited-space hydrogen container systems.
Global Classification Society & Industrial Certificates
JONSN micro gear pumps obtained Type Approval from CCS, BV, ABS, NK ,LR classification societies, fully compliant with strict global energy supply chain audit standards, offering low-TCO replacement solutions for harsh ALK electrolysis hydrogen loops and downstream hydrogen storage / transport systems.




Frequently Asked Questions
Why do JONSN pumps outperform diaphragm pumps in ALK electrolysis?
Diaphragm pumps create heavy pressure pulses; JONSN's magnetic static seal realizes full pulse-free delivery, meeting the 24/7 continuous run requirement of mass-production hydrogen electrolyzers without diaphragm fatigue or rupture.
How does JONSN resist anti-wear performance against 30% KOH?
Built with UK Victrex PEEK gears + 100% Zirconia ceramic shafts, JONSN pumps avoid metal runout and keep volumetric efficiency 94.3% without flow attenuation, even after long-cycle exposure to high-concentration alkaline lye.
Can JONSN pumps tolerate electrolyzer extreme temperature conditions?
Yes. Operating range -40°C - 160°C perfectly fits the alkaline cell core temperature zone (70-90°C working zone), maintaining stability under repeated thermal stress and online hot-water flushing cycles.
Does JONSN offer custom coMPact pump arrays for hydrogen container skids?
Yes. The MRV coMPact series is available for limited-space hydrogen skid and containerized electrolyzer assemblies. Submit the 5-item dynamic flow matrix to receive official CAD / 3D STEP models & wiring specifications within 24 hours to eliminate any space interference.










