PEM Hydrogen Generator for High-Purity Hydrogen Supply
A compact PEM hydrogen generator that produces high-purity hydrogen directly from deionized water, without alkaline solution or chemical additives. With adjustable 0–4 L/min hydrogen output, integrated purification, intelligent control, and customizable pressure options, it supports laboratory, research, fuel cell testing, precision instrument, and selected industrial applications.
Compact Hydrogen Generation from Deionized Water
The Hydrogen Generator produces high-purity hydrogen directly from deionized water using PEM water electrolysis, without alkaline solution or chemical additives. With adjustable hydrogen output, integrated purification, PLC control, and customizable pressure options, it supports laboratory gas supply, research, precision instruments, fuel cell testing, and selected industrial processes.
PEM Water Electrolysis
Produces hydrogen directly from deionized water without alkaline solution or chemical additives.
Adjustable Output
Hydrogen flow can be adjusted from 0–4 L/min according to application demand.
High-Purity Supply
Integrated purification supports dry, high-purity hydrogen for precision use.
Intelligent Control
Siemens PLC and HMI touchscreen support monitoring, alarms, and system control.
Core Technology & Advantages
The Hydrogen Generator combines PEM water electrolysis, purification, intelligent control, and safety monitoring in one compact system. It is designed for users who need stable hydrogen supply, purity control, and flexible pressure or flow requirements.
Pure-Water PEM Electrolysis
The system uses Proton Exchange Membrane electrolyzer technology to produce hydrogen directly from deionized water, avoiding alkaline solution and chemical additives during normal operation.
0–4 L/min Adjustable Hydrogen Output
Hydrogen output can be adjusted from 0 to 4 L/min, supporting different requirements from laboratory use to selected industrial gas supply applications.
Fast Start-Stop and Power Modulation
PEM technology supports fast response and flexible power modulation, helping reduce unnecessary energy use during idle or low-load operation.
Customizable Hydrogen Pressure Output
Hydrogen delivery pressure can be customized from 0 to 7 MPa according to downstream applications such as fuel cell testing, hydrogen storage, refueling research, or process gas supply.
Three-Stage Hydrogen Purification
The integrated purification system can include molecular sieve, silica gel, and trace oxygen removal to support dry, high-purity hydrogen output.
Compact Integrated System
The system integrates PEM electrolyzer, power supply, gas-liquid separation, purification, control, safety monitoring, valves, piping, and cabinet structure in one compact hydrogen generator.
How the Hydrogen Generator Works
The system is designed to produce, purify, monitor, and deliver hydrogen through an integrated PEM water electrolysis process.
Deionized Water Supply
Deionized water enters the PEM electrolysis system as the hydrogen source.
PEM Water Electrolysis
The PEM electrolyzer separates water into hydrogen and oxygen without alkaline solution.
Gas-Liquid Separation
The gas-liquid separation module helps separate produced gas from water.
Hydrogen Purification
Molecular sieve, silica gel, and trace oxygen removal help produce dry, high-purity hydrogen.
Pressure / Flow Monitoring
Sensors monitor pressure, flow, temperature, and operating conditions in real time.
Hydrogen Output
Purified hydrogen is delivered to downstream equipment according to configuration.
System Structure & Configuration
The Hydrogen Generator integrates key subsystems required for compact hydrogen production, purification, monitoring, and delivery.
PEM Electrolyzer
- Produces hydrogen from deionized water
- No alkaline solution required in normal operation
- Supports adjustable hydrogen output
- Suitable for compact high-purity hydrogen generation
Power Supply Unit
- Supports stable operation of the PEM electrolyzer
- Provides controlled electrical input to match hydrogen output requirements
- Works with the control system for start-stop and load adjustment
Gas-Liquid Separation Module
- Separates produced hydrogen from liquid water
- Supports stable hydrogen delivery
- Works with downstream purification system
Hydrogen Purification System
- Molecular sieve & Silica gel
- Trace oxygen remover
- Supports dry, ultra-pure hydrogen output for precision use
PLC Control System
- Siemens SMART 200 ST40 PLC
- HMI touchscreen interface
- Real-time monitoring & Fault alarms
- Historical data export support
- TCP/IP protocol support for remote monitoring and data exchange
* Key components may include circulating water pump, gas-water separator, gas dryer, valves and piping, constant current power supply, control panel, safety mechanisms, and monitoring sensors.
Intelligent Control System
The Hydrogen Generator uses an industrial control platform to support stable operation, real-time monitoring, fault alarms, and remote integration.
Siemens SMART 200 ST40 PLC
Industrial-grade Siemens PLC supports stable control, anti-interference capability, and closed-loop control of pressure, flow, and temperature.
HMI Touchscreen Interface
The touchscreen interface displays key operating parameters such as pressure, flow, temperature, alarms, and system status.
TCP/IP Communication Support
TCP/IP protocol support allows data exchange and can support integration with plant DCS, IoT platforms, or remote monitoring systems when required.
Historical Data & Fault Alarm
The system can support fault alarms, operating status review, and historical data export according to configuration.
Safety Protection Mechanisms
Hydrogen generation requires reliable monitoring and protection. The Hydrogen Generator integrates multiple safety-related mechanisms to support safer operation and system protection according to configured safety logic.
Leak Alarm Support
Automatic leak alarm function can support abnormal hydrogen leakage detection and warning.
Overpressure Protection
Overpressure release protection helps manage abnormal pressure conditions.
Over-Temperature Protection
Electrolyzer over-temperature protection helps protect the system during abnormal operation.
Water Quality Anomaly
The system can detect water quality anomalies and issue alerts or shut down according to control logic.
Self-Diagnostic Function
Self-diagnostic functions help identify abnormal operating conditions and maintenance needs.
Automatic Shutdown Logic
The system can automatically shut down under selected abnormal conditions according to safety settings.
Application Scenarios
The Hydrogen Generator can support different applications where compact, high-purity, adjustable hydrogen supply is required. Final configuration should be reviewed according to hydrogen purity, output flow, pressure, downstream equipment, and safety requirements.

Scientific Research & Laboratory Use
Provides high-purity hydrogen as carrier gas or reaction gas for laboratory instruments and research systems.

Fuel Cell Stack Testing
Supports hydrogen supply for fuel cell stack testing, single-cell performance evaluation, and research-scale fuel cell experiments.

Industrial Manufacturing & Precision Processes
Can provide stable hydrogen gas for selected industrial processes requiring high-purity hydrogen.

CVD and Precision Instrument Gas Supply
High-purity, dry hydrogen can support selected high-precision instruments and process gas applications.

Hydrogen Mobility & Small Refueling Research
Can be reviewed for compact hydrogen generation in hydrogen mobility, storage, or refueling research applications.

Emerging & Cross-Industry Applications
Can be reviewed for selected hydrogenation reactions, food packaging gas replacement research, and cross-industry hydrogen applications.
Technical Specifications
The following specifications help buyers evaluate the Hydrogen Generator according to output flow, purity, pressure, dimensions, operating condition, and power supply requirements.
| No. | Item | Unit | Value |
|---|---|---|---|
| 1 | System Dimensions with Wheels | mm | 557 × 400 × 530 |
| 2 | Hydrogen Output | mL/min | 0–4000 |
| 3 | Oxygen Output | mL/min | 0–2000 |
| 4 | Hydrogen Purity | % | >99.99 |
| 5 | Operating Temperature | °C | 5–60 |
| 6 | Operating Pressure | MPaG | 0–1.6 |
| 7 | Inlet Water Pressure | barg | 1–4 |
| 8 | Power Supply Voltage AC | V | 220 |
| 9 | Dew Point | °C | < -45 |
| 10 | Weight | kg | 35 |
| 11 | Power | - | To be defined / To be confirmed by configuration |
Note: Customizable options are available upon request. Hydrogen purity can be reviewed from 99.99% to 99.99999%, and pressure output can be customized from 0 to 7 MPa according to application requirements.
Customizable Options
Different applications may require different hydrogen purity, output pressure, flow rate, control interface, and downstream integration. Hele Titanium can review customization requirements according to project needs.
Hydrogen Purity Review
Hydrogen purity can be reviewed from 99.99% to 99.99999% according to downstream equipment and process requirements.
Pressure Output Review
Hydrogen delivery pressure can be customized from 0 to 7 MPa according to application requirements.
Flow Rate Configuration
Hydrogen output can be configured within 0–4 L/min according to consumption demand.
Control & Communication
TCP/IP, remote monitoring, DCS, IoT, or plant integration requirements can be reviewed when required.
Purification Configuration
Molecular sieve, silica gel, trace oxygen remover, and gas drying requirements can be reviewed according to hydrogen purity and dew point requirements.
How to Select the Right Hydrogen Generator Configuration
Before selecting a hydrogen generator, buyers should confirm hydrogen output, purity, pressure, water supply, downstream equipment, safety requirements, and installation environment.
| Selection Factor | What to Confirm | Why It Matters |
|---|---|---|
| Hydrogen Output | Required hydrogen flow rate in mL/min or L/min. | Determines whether the 0–4 L/min output range matches the application. |
| Hydrogen Purity | Required purity level, such as >99.99% or higher. | Precision instruments and process gas applications may require higher purity. |
| Output Pressure | Required delivery pressure, from low pressure to customized high pressure. | Fuel cell testing, storage, reactors, and refueling research may require different pressures. |
| Water Quality | Deionized water quality and inlet water pressure. | Water quality affects PEM electrolyzer operation and system reliability. |
| Downstream Equipment | Instrument, reactor, fuel cell, storage, or process connection. | Helps confirm purity, pressure, flow, connector, and safety requirements. |
| Control Integration | Need for HMI, TCP/IP, DCS, IoT, or remote monitoring. | Affects automation, data export, and system integration design. |
| Installation Environment | Indoor location, ventilation, temperature, space, and safety requirements. | Supports safe layout, maintenance, and operation planning. |
Quality & Documentation Support
Hydrogen generator projects often require clear specifications, inspection records, packing information, and technical documentation for procurement, approval, and operation.
Product Specification Sheet
Includes key parameters such as output, purity, pressure, dimensions, and power.
System Configuration Review
Includes electrolyzer, purification, PLC, and key components detail.
Inspection & Testing
Inspection records and functional testing reviewed according to requirements.
Packing & Export Support
Export packing, labels, and shipment documents supported.
Operation Guidance
Operating guidance and technical consultation provided.
Hydrogen Generator FAQ
What is the Hydrogen Generator used for?
What technology does the Hydrogen Generator use?
What is the hydrogen output range?
What hydrogen purity can the system provide?
What is the operating pressure?
What purification system is included?
Can it be used for GC or GC-MS?
Can it support fuel cell testing?
What control system is used?
Can it support remote monitoring?
What safety functions are included?
What information is needed for a quote?
Request a Hydrogen Generator Configuration Review
Tell us your required hydrogen output, purity, pressure, downstream application, water supply condition, control requirements, installation environment, and documentation needs. Hele Titanium will help review a suitable hydrogen generator configuration for your application.
Direct Contact:
sales@heletitanium.com
Room 1206, Building 1, Huaxia Yue World