HVDA HVDB HVDB1 HVDC Series Proton Exchange Membrane Hydrogen Generator

Hyvoda four-series Proton Exchange Membrane hydrogen generator adopts PEM Electrolyzer tech. It outputs 150~5000ml/min hydrogen, for lab and small industrial renewable hydrogen supply globally.

Features

Adopt Proton Exchange Membrane for pure water electrolysis reaction
4 series models cover diversified small hydrogen flow demands
PLC unattended control suits indoor lab & industrial deployment
Adapt to fluctuating power of Wind Solar Hybrid System steadily
Low energy consumption supports long-term operational cost control
Complete safety interlock complies with global hydrogen standards
Optional Hydrogen Compressor matches different outlet pressure needs

Applications

Supply renewable hydrogen to advance industrial decarbonization globally
Lab carrier gas supply for chromatograph & analytical instruments
Small test matching Fuel Cell Power Plants performance verification
On-site gas source for semiconductor & electronic manufacturing
Hydrogenation experiment support for pharmacy and fine chemistry
Cooperate with Energy Storage System for power-hydrogen conversion

Basic Working Principle

This whole product line belongs to Water Electrolysis Hydrogen Generator, running on Proton Exchange Membrane (PEM Electrolyzer) technology.

We only input two raw materials: clean ultrapure water and electricity. Inside the closed equipment, the solid proton exchange membrane splits water molecules into pure hydrogen and oxygen through electrochemical reaction. The membrane thoroughly separates the two kinds of gas to avoid mixing, so the produced hydrogen keeps ultra-high purity all the time. No alkaline liquid chemical additives are needed during operation, different from Alkaline Electrolyzer equipment, which brings simpler daily maintenance.

Hyvoda independently researches and develops all four product series, holding more than 200 global core technology patents. All devices are exported to global regions to provide stable renewable hydrogen supply solutions, supporting green hydrogen solutions and hydrogen production plant construction projects.

Detailed Difference Between HVDA, HVDB, HVDB1, HVDC Four Series (Refer to Parameter Table)

1. HVDA Series: Miniature Entry-level Small Flow Model

This is the smallest specification among the four series, mainly designed for ultra-small hydrogen consumption scenarios.

Hydrogen production range: 150 ~ 900 ml/min, the lowest flow rate of all models
Core internal structure: Only 1~7 electrolytic cells, MEA effective area 50*40mm (smallest membrane size)
Working condition: Fixed DC working current 20A, hydrogen side withstand pressure 0~0.5MPa
Applicable crowd: University laboratories, small precision testing instruments that need tiny continuous hydrogen supply
Uniform standard of the whole series: Energy consumption ≤4.4 kWh/Nm³, service life of core stack ≥50000 hours, working temperature fixed 40~60℃

2. HVDB Series: Mid-range Conventional Standard Model

Positioned as mainstream medium-flow equipment, upgraded on the basis of HVDA with larger hydrogen output.

Hydrogen production range: 600 ~ 2000 ml/min, perfectly fill the gap between miniature and medium flow demand
Core internal structure: 3~10 electrolytic cells, MEA effective area upgraded to 50*60mm
Working condition: Fixed DC working current 30A, maximum hydrogen bearing pressure still 0.5MPa consistent with HVDA
Size upgrade: Larger overall cabinet dimension than HVDA, water pump flow increased to adapt higher electrolysis efficiency
Usage scenario: General industrial R&D laboratories, small pharmaceutical hydrogenation experimental projects

3. HVDB1 Series: Pressure-enhanced Medium-flow Model

Consistent hydrogen flow range with HVDB (600~2000ml/min), the biggest optimization lies in hydrogen outlet pressure design.

Core difference: Hydrogen side withstand pressure adjusted to 0~0.3MPa, matched for scenes that need low-pressure stable hydrogen output
Internal configuration: Fixed DC current 45A, cell quantity 2~7 groups, optimized internal pipeline layout
Advantages: More stable gas delivery pressure, less gas fluctuation during continuous operation
Suitable for: Fuel cell small test benches, electronic component atmosphere protection production lines

4. HVDC Series: Large Flow Top-end Model

The largest hydrogen production capacity of the entire four series, oriented to medium demand small industrial scenes.

Hydrogen production range: 2000 ~ 5000 ml/min, maximum output of all product lines
Core upgrade: MEA area expanded to 70*70mm, electrolytic cells 4~10 groups, DC working current up to 73.5A
Interface specification: Water inlet and gas outlet ports upgraded from 1/8 inch to 1/4 inch, convenient for pipeline expansion connection
Pressure parameter: Hydrogen side pressure 0~0.3MPa, equipped with larger circulating water pump to guarantee long-time high-load operation
Main application: Small green hydrogen plant pilot projects, photovoltaic Wind Solar Hybrid System matching power-to-hydrogen experiments

Technical Specifications of All Four Series

All four product series adopt mature Proton Exchange Membrane water electrolysis working principle to split pure water into high-purity hydrogen and oxygen. Different from Alkaline Electrolyzer devices, no liquid alkaline electrolyte is filled, supplemented or replaced during the entire equipment service cycle, which effectively cuts daily maintenance workload and avoids corrosion risks brought by alkaline liquor to internal pipelines and components.
The whole system demands inlet feed water of ultrapure water with resistivity ≥ 15 MΩ·cm. Strict water quality standard prevents ion precipitation, scaling and electrochemical erosion inside electrolytic stacks, which steadily safeguards the structural integrity and service performance of internal proton exchange membrane and MEA assemblies for long-term continuous operation.
A constant operating temperature window ranging from 40 ℃ to 60 ℃ is maintained throughout electrolysis procedures. The built-in circulating water pump performs automatic circulating cooling and temperature regulation in real time according to running load fluctuations, avoiding performance attenuation caused by excessively high or low stack temperature and guaranteeing consistent electrolysis efficiency under diverse working conditions.
The specific energy consumption for hydrogen production of all models is strictly controlled within ≤ 4.4 kWh per cubic meter of produced hydrogen. Optimized electrolytic cell structure and power conversion circuit reduce cumulative power expenditure in long-term continuous operation, delivering favorable economic benefits for on-site renewable hydrogen supply projects.
With standardized operation and regular preventive maintenance following official specifications, the core electrolysis stack carries a designed service life of no less than 50,000 working hours, ensuring stable, long-duration gas supply for laboratory analysis, small industrial testing and renewable hydrogen application scenarios.
Each unit is equipped with an integrated PLC automatic control system. After initial installation and commissioning, the equipment supports fully unattended 24-hour continuous operation. Comprehensive safety interlock mechanisms including overheating protection, water shortage alarm and shutdown, as well as gas overpressure relief protection are embedded to respond to abnormal operating states instantly, complying with international hydrogen equipment safety specifications and eliminating potential operational hazards.

Technical Specifications

1. HVDA Series

Parameter Item	HVDA-WE150ML	HVDA-WE300ML	HVDA-WE600ML	HVDA-WE900ML
Hydrogen Production Capacity	150 ml/min	300 ml/min	600 ml/min	900 ml/min
Oxygen Production Capacity	75 ml/min	150 ml/min	300 ml/min	450 ml/min
Effective MEA Area	50×40 mm	50×40 mm	50×40 mm	50×40 mm
Number of Electrolytic Cells	1 cell	2 cells	5 cells	7 cells
Operating DC Current	20 A	20 A	20 A	20 A
Operating DC Voltage	1.8 V	3.6 V	9 V	12.6 V
Oxygen Side Water Inlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Oxygen Side Water Outlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Hydrogen Side Gas Outlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Oxygen Side Pressure Endurance	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa
Hydrogen Side Pressure Endurance	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa
Circulating Water Pump Flow Rate	0.13 L/min	0.26 L/min	0.65 L/min	0.91 L/min
Operating Temperature Range	40~60 ℃	40~60 ℃	40~60 ℃	40~60 ℃
Specific Energy Consumption	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³
Feed Water Requirement & Service Life	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h
Overall Dimension (L×W×H)	85×87.5×25.1 mm	85×87.5×30.2 mm	85×87.5×49.5 mm	85×87.5×59.7 mm

2. HVDB1 Series

Parameter Item	HVDB1-WE600ML	HVDB1-WE1000ML	HVDB1-WE1600ML	HVDB1-WE2000ML
Hydrogen Production Capacity	600 ml/min	1000 ml/min	1600 ml/min	2000 ml/min
Oxygen Production Capacity	300 ml/min	500 ml/min	800 ml/min	1000 ml/min
Effective MEA Area	50×60 mm	50×60 mm	50×60 mm	50×60 mm
Number of Electrolytic Cells	2 cells	4 cells	6 cells	7 cells
Operating DC Current	45 A	45 A	45 A	45 A
Operating DC Voltage	3.6~5 V	7.2~10 V	10.8~15 V	12.6~17.5 V
Oxygen Side Water Inlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Oxygen Side Water Outlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Hydrogen Side Gas Outlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Oxygen Side Pressure Endurance	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa
Hydrogen Side Pressure Endurance	0~0.3 MPa	0~0.3 MPa	0~0.3 MPa	0~0.3 MPa
Circulating Water Pump Flow Rate	0.4 L/min	0.68 L/min	1.2 L/min	1.4 L/min
Operating Temperature Range	40~60 ℃	40~60 ℃	40~60 ℃	40~60 ℃
Specific Energy Consumption	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³
Feed Water Requirement & Service Life	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h
Overall Dimension (L×W×H)	101×96×39.2 mm	101×96×49.5 mm	101×96×59.7 mm	101×96×64.8 mm

3. HVDB Series

Parameter Item	HVDB-WE600ML	HVDB-WE1000ML	HVDB-WE1600ML	HVDB-WE2000ML
Hydrogen Production Capacity	600 ml/min	1000 ml/min	1600 ml/min	2000 ml/min
Oxygen Production Capacity	300 ml/min	500 ml/min	800 ml/min	1000 ml/min
Effective MEA Area	50×60 mm	50×60 mm	50×60 mm	50×60 mm
Number of Electrolytic Cells	3 cells	5 cells	8 cells	10 cells
Operating DC Current	30 A	30 A	30 A	30 A
Operating DC Voltage	5.4 V	9 V	14.4 V	18 V
Oxygen Side Water Inlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Oxygen Side Water Outlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Hydrogen Side Gas Outlet Port	1/8 inch	1/8 inch	1/8 inch	1/8 inch
Oxygen Side Pressure Endurance	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa
Hydrogen Side Pressure Endurance	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa
Circulating Water Pump Flow Rate	0.6 L/min	1 L/min	1.6 L/min	2 L/min
Operating Temperature Range	40~60 ℃	40~60 ℃	40~60 ℃	40~60 ℃
Specific Energy Consumption	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³
Feed Water Requirement & Service Life	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h
Overall Dimension (L×W×H)	101×96×40.3 mm	101×96×50.5 mm	101×96×65.8 mm	101×96×76 mm

4. HVDC Series

Parameter Item	HVDC-WE2000ML	HVDC-WE3000ML	HVDC-WE4000ML	HVDC-WE5000ML
Hydrogen Production Capacity	2000 ml/min	3000 ml/min	4000 ml/min	5000 ml/min
Oxygen Production Capacity	1000 ml/min	1500 ml/min	2000 ml/min	2500 ml/min
Effective MEA Area	70×70 mm	70×70 mm	70×70 mm	70×70 mm
Number of Electrolytic Cells	4 cells	6 cells	8 cells	10 cells
Operating DC Current	73.5 A	73.5 A	73.5 A	73.5 A
Operating DC Voltage	7.2~10 V	10.8~15 V	14.4~20 V	18~25 V
Oxygen Side Water Inlet Port	1/4 inch	1/4 inch	1/4 inch	1/4 inch
Oxygen Side Water Outlet Port	1/4 inch	1/4 inch	1/4 inch	1/4 inch
Hydrogen Side Gas Outlet Port	1/4 inch	1/4 inch	1/4 inch	1/4 inch
Oxygen Side Pressure Endurance	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa	0~0.5 MPa
Hydrogen Side Pressure Endurance	0~0.3 MPa	0~0.3 MPa	0~0.3 MPa	0~0.3 MPa
Circulating Water Pump Flow Rate	1.2 L/min	1.8 L/min	2.4 L/min	3 L/min
Operating Temperature Range	40~60 ℃	40~60 ℃	40~60 ℃	40~60 ℃
Specific Energy Consumption	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³	≤ 4.4 kWh/Nm³
Feed Water Requirement & Service Life	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h	Ultrapure water ≥15MΩ; Stack service life ≥ 50000 h
Overall Dimension (L×W×H)	125×146×69.4 mm	125×146×79.6 mm	125×148×91.9 mm	125×146×100 mm

Frequently Asked Questions

What core technology do these four series hydrogen generators adopt? What is the difference from alkaline electrolysis equipment?

All products are Proton Exchange Membrane (PEM Electrolyzer) type Water Electrolysis Hydrogen Generator independently developed by Hyvoda, with over 200 proprietary core patents, supplied to global markets.

Different from Alkaline Electrolyzer:

PEM equipment only needs ultrapure water and electricity for operation, no alkaline liquid electrolyte is added or replaced regularly; daily maintenance workload is far lower.
It can stably adapt to fluctuating power output from Wind Solar Hybrid System, which is suitable for renewable hydrogen production and Industrial Decarbonization projects.
The produced hydrogen has ultra-high purity, more applicable to precision laboratories and electronic manufacturing scenarios.

What is the hydrogen production range covered by HVDA, HVDB, HVDB1, HVDC four series? How to select the right model according to demand?

HVDA Series: 150 ~ 900 ml/min, minimum miniature flow, for tiny continuous hydrogen consumption of university labs and precision analytical instruments
HVDB Series: 600 ~ 2000 ml/min, mainstream medium flow, hydrogen side pressure 0~0.5MPa, general-purpose for pharmaceutical hydrogenation experiments and industrial R&D rooms
HVDB1 Series: Same 600~2000 ml/min hydrogen output as HVDB, hydrogen side pressure adjusted to 0~0.3MPa, more stable low-pressure gas supply, matched with small Fuel Cell Power Plants testing
HVDC Series: 2000 ~ 5000 ml/min, maximum flow of the whole product line, large MEA area and thickened pipeline interface, suitable for small renewable hydrogen plant pilot construction

What raw materials and water quality requirements are needed for the normal operation of the equipment?

No chemical additives are required throughout the operation. Only two consumables are needed:

Stable DC power supply; the equipment can automatically adjust power consumption according to hydrogen output
Ultrapure water with resistivity ≥15MΩ. High-purity water can avoid scaling and corrosion inside the electrolytic stack, effectively prolonging the service life of the Proton Exchange Membrane core component.

The built-in circulating water pump automatically completes water circulation cooling within the machine, no external cooling water pipeline needs to be laid separately.

What is the service life of the core electrolytic stack? Which parts need regular replacement?

Under standardized operation and regular maintenance:

The designed service life of the electrolytic stack of all four series is ≥ 50000 hours.

Consumable parts requiring periodic replacement: circulating water filter elements, sealing gaskets; the Proton Exchange Membrane and MEA assembly can maintain stable performance for a long time with qualified inlet water quality. We provide global spare parts supply service for overseas users.

Can the equipment run unattended automatically? What safety protection configurations are equipped?

All models support 24-hour unattended continuous operation via built-in PLC automatic control system.

Complete safety interlock protection functions are configured to comply with global hydrogen industry safety norms:

Water shortage alarm & automatic shutdown
Overheating protection beyond 60℃ working temperature
Overpressure relief protection for hydrogen and oxygen channels
Abnormal current/voltage automatic power-off protection

Suitable for long-term uninterrupted gas supply scenarios.

Can the equipment be connected and matched with other hydrogen-related auxiliary systems?

Yes, all four series reserve standardized interfaces for extended docking:

Matched with Hydrogen Compressor (Diaphragm / Reciprocating type) to boost hydrogen pressure for high-pressure storage needs
Connected with hydrogen storage tanks, combined with Energy Storage System to realize power-hydrogen conversion, forming complete green hydrogen solutions
Combined with photovoltaic and wind power facilities to build small renewable hydrogen supply systems for Industrial Decarbonization layout

What are the differences in pressure parameters between HVDB and HVDB1 with the same hydrogen production flow?

Though HVDB and HVDB1 have identical hydrogen & oxygen output volume:

HVDB: Hydrogen side pressure resistance 0~0.5MPa, applicable to scenarios requiring medium-pressure hydrogen delivery
HVDB1: Hydrogen side pressure resistance limited to 0~0.3MPa. The internal flow channel is optimized to reduce gas pressure fluctuation, and the outlet gas pressure is more stable, which is more friendly to fuel cell bench testing.

The oxygen side pressure of both series remains uniformly 0~0.5MPa.

What is the unified energy consumption standard of the whole product line? Will long-term use bring high power costs?

The specific energy consumption of all four series is controlled ≤ 4.4 kWh/Nm³ hydrogen, which belongs to the low energy consumption level among small PEM electrolysis devices.

The working temperature is automatically maintained at 40~60℃ by circulating water cooling; no extra heating power is consumed. For laboratories and small industrial scenes with intermittent use, the overall daily operation power cost is very controllable.

What after-sales technical services does Hyvoda provide for global customers?

As a professional Renewable Energy EPC Contractor and PEM electrolysis equipment manufacturer:

Overseas on-site equipment commissioning, installation guidance and operator technical training
Complete operation & maintenance manual, detailed preventive maintenance cycle documents
Long-term remote technical consultation for green hydrogen plant scheme design
Global standardized spare parts delivery and after-sales fault troubleshooting support

Can multiple units be used in parallel to increase total hydrogen production capacity?

Yes. Multiple identical models can be operated in parallel to superpose hydrogen output, which is convenient for users to gradually expand the scale of hydrogen production according to later business needs.

The parallel layout can be combined with Wind Solar Hybrid System to store excess new energy power in the form of renewable hydrogen, realizing clean energy storage and utilization.

Primary Industrial Applications for PEM On-Site Hydrogen

Thermal power plant turbine generator hydrogen cooling
Semiconductor wafer fabrication & electronic component manufacturing
CVD crystal growth, lab-grown diamond production and optical coating processes
Laboratory gas chromatography (GC) carrier gas supply
Float glass tin bath atmosphere control
Polysilicon manufacturing for photovoltaic solar industry
Metal heat treatment, sintering and bright annealing furnaces
Pharmaceutical & fine chemical hydrogenation reactions
Food oil & fat hydrogenation processing
Additive manufacturing / 3D printing protective atmosphere
Small-scale ammonia & fertilizer pilot plants
Petrochemical refinery catalyst activation & lab R&D hydrogen supply
Industrial gas merchant on-site bulk hydrogen production
Fuel cell testing and renewable energy power-to-gas demonstration projects