Hydrogen & Hydrogen Energy Compressors
Oil-free piston technology purpose-built for the full hydrogen value chain — from electrolysis and SMR through to storage, refuelling, and hydroprocessing loops.
Product Overview
The rapid expansion of domestic hydrogen energy supply chains has brought hydrogen compressors to the centre of every green energy project. Ever Power's hydrogen compressor range handles the full spectrum of process requirements: gas-phase purification and transfer in SMR and coal gasification plants; circulating hydrogen loops in hydrocracking and hydrotreating reactors; high-pressure filling of hydrogen cylinders at 15.00–16.50 MPa; large-volume buffer storage for hydrogen refuelling stations; and electrolysis output compression for grid-scale storage. Modular skid packages with VFD, soft-start, or fixed-speed drives are available, and the range complies with API 618 and relevant national standards throughout.
All models use oil-free lubrication — no oil anywhere in the compression cylinder — using PTFE-composite piston rings and packing, ensuring the delivered hydrogen meets ISO 14687 fuel quality requirements and avoids catalyst contamination in downstream processes.
Key Technical Parameters
2 – 500
Flow Capacity (Nm³/min)
0.1 – 32.0
Discharge Pressure (MPa)
5.5 – 8,000
Motor Power (KW)
1.5 – 150 T
Piston Force
H₂ / H₂ mixtures
Compression Medium
M / D / P / L / Z
Frame Types
Product Range
Process Hydrogen Compressors
Feed gas transfer and purification support for PSA units, SMR trains, and coal gasification hydrogen production lines.
Circulating Hydrogen Compressors
Closed-loop hydrocracking and hydrotreating recycle service at large volumes and moderate differential pressures. Models: 4MW-22/1.2-18, 4MW-48/12-55, ZW-20/5-10.5.
High-Pressure Cylinder Filling
15.00–16.50 MPa oil-free hydrogen for industrial and specialty gas cylinder charging. ZW, LW, DW frame series.
Hydrogen Energy / HRS Compressors
Large-flow multi-stage units for hydrogen refuelling station cascade storage and dispensing. Low-speed, explosion-proof direct drive.
Hydrogen Booster Compressors
Inline boosting for pipeline injection, storage cavern charging, and pressure step-up between process units.

Representative Model Specifications
| Model | Type | Flow (Nm³/min) | Suction Pressure (MPa) | Discharge Pressure (MPa) | Power (KW) |
|---|---|---|---|---|---|
| ZW-0.1/21-25 | H₂ compressor | 0.1 | 2.10 (inlet) | 25 | 7.5 |
| ZW-0.25/13-24 | H₂ compressor | 0.25 | 0.03 (inlet) | 24 | 11 |
| ZW-1.1/11.5-24.5 | H₂ compressor | 1.1 | 1.15 (inlet) | 24.5 | 37 |
| ZW-1/25 | H₂ compressor | 1 | inlet pressure | 25 | 30 |
| ZW-1/5-8 | H₂ compressor | 1 | 5.0 (inlet) | 8 | 15 |
| ZW-1.5/25 | H₂ compressor | 1.5 | inlet pressure | 25 | 30 |
| ZW-2/4 | H₂ compressor | 2 | inlet pressure | 4 | 15 |
| ZW-2/11 | H₂ compressor | 2.2 | inlet pressure | 11 | 18.5 |
| ZW-3/7 | H₂ compressor | 3 | inlet pressure | 7 | 22 |
| ZW-3.5/0.2-8.6 | H₂ compressor | 3.5 | 0.02 (inlet) | 8.6 | 30 |
| ZW-3/30 | H₂ compressor | 3 | inlet pressure | 30 | 45 |
| ZW-4/8 | H₂ compressor | 4 | inlet pressure | 8 | 30 |
| 3ZW-6/30 | H₂ compressor | 6 | inlet pressure | 30 | 75 |
| 3ZW-8/20 | H₂ compressor | 8 | inlet pressure | 20 | 75 |
| ZW-13/30 | H₂ compressor | 13 | inlet pressure | 30 | 160 |
| ZW-13/8 | H₂ compressor | 13 | inlet pressure | 8 (15 inlet) | 132 |
| ZW-1.8/1-120 | H₂ compressor | 1.8 | 1.0 (inlet) | 120 | 160 |
| LW-2/1.8-120 | H₂ compressor | 2 | 1.8 (inlet) | 120 | 132 |
| LW-4.65/24-35 | H₂ compressor | 4.65 | 24 (inlet) | 35 | 185 |
| LW-3.5/6/0.4-8.1 | H₂ compressor | 3.5 | 0.4 (inlet) | 8.1 | 55 |
| LW-6/15 | H₂ compressor | 6 | inlet pressure | 15 | 65 |
| LW-9/3.5-34 | H₂ compressor | 9 | 0.35 (inlet) | 34 | 250 |
| LW-11.7/0.6-10 | H₂ compressor | 11.7 | 0.06 (inlet) | 10 | 132 |
| LW-20/2 | H₂ compressor | 20 | inlet pressure | 2 | 110 |
| LW-20/4 | H₂ compressor | 20 | inlet pressure | 4 | 132 |
| LW-20/8 | H₂ compressor | 20 | inlet pressure | 8 | 132 |
| LW-20/18 | H₂ compressor | 20 | inlet pressure | 18 | 240 (250) |
| LW-25/3.5 | H₂ compressor | 25 | 0.35 (inlet) | — | 132 |
| LW-30/2 | H₂ compressor | 30 | inlet pressure | 2 | 90 |
| LW-30/4 | H₂ compressor | 30 | inlet pressure | 4 | 132 |
| LW-34.2/10 | H₂ compressor | 34.2 | inlet pressure | 10 | 350 |
| LW-33/0.3-3.5 | H₂ compressor | 33 | 0.03 (inlet) | 3.5 | — |
| LW-40/2 | H₂ compressor | 40 | inlet pressure | 2 | 132 |
| LW-40/4 | H₂ compressor | 40 | inlet pressure | 4 | 160 |
| LW-50/6 | H₂ compressor | 50 | inlet pressure | 6 | 260 |
| LW-60/2.5 | H₂ compressor | 60 | inlet pressure | 2.5 | 220 |
| LW-60/4 | H₂ compressor | 60 | inlet pressure | 4 | 260 |
| LW-75/1.5 | H₂ compressor | 75 | inlet pressure | 1.5 | 220 |
| LW-5/0.8-120 | H₂ compressor | 5 | 0.08 (inlet) | 120 | — |
| DW-6/8/60 | H₂ compressor | 6.8 | inlet pressure | 60 | 160 |
| DW-13/21-55 | H₂ compressor | 13 | 21 (inlet) | 55 | — |
| DW-20/8 | H₂ compressor | 20 | inlet pressure | 8 | — |
| DW-22/0.4-16 | H₂ compressor | 22 | 0.4 (inlet) | 16 | 280 |
| DW-27/11-15.8 | H₂ compressor | 27 | inlet pressure | 15.8 | — |
| DW-27.5/5-8 | H₂ compressor | 27.5 | 5.0 (inlet) | 8 | 220 |
| DW-34.2/16 | H₂ compressor | 34.2 | inlet pressure | 16 | 250 |
| DW-35/8 | H₂ compressor | 35 | inlet pressure | 8 | 250 |
| DW-35/40 | H₂ compressor | 35 | inlet pressure | 40 | 500 |
| DW-40/2-3.5 | H₂ compressor | 40 | inlet pressure | 3.5 | 160 |
| DW-40/8 | H₂ compressor | 40 | inlet pressure | 8 | 280 |
| DW-51.3/16 | H₂ compressor | 51.3 | inlet pressure | 16 | 315 |
| DW-57.5/4.5 | H₂ compressor | 57.5 | inlet pressure | 4.5 | — |
| DW-60/6 | H₂ compressor | 60 | inlet pressure | 6 | 350 |
| DW-60/28 | H₂ compressor | 60 | inlet pressure | 28 | 900 |
| DW-68/4 | H₂ compressor | 68 | inlet pressure | 4 | 400 |
| DW-66/4-12.5 | H₂ compressor | 66 | 4.0 (inlet) | 12.5 | — |
| DW-92/5-13 | H₂ compressor | 92 | 5.0 (inlet) | 13 | 1,500 |
| DW-100/8 | H₂ compressor | 100 | inlet pressure | 8 | 620 |
| 4MW-22/1.2-18 | Circulating H₂ | 22 | 1.2 (inlet) | 18 | — |
| 4MW-48/12-55 | Circulating H₂ | 48 | 12 (inlet) | 55 | — |
| PW-0.8/88.3-94.3 | H₂ compressor | 0.8 | 88.3 (inlet) | 94.3 | — |
| DW-0.8/12-150 | H₂ compressor | 0.8 | 12 (inlet) | 150 | — |
| D1812H80-320 | H₂ compressor (diaphragm) | — | 80 (inlet) | 320 | — |
| ZW-20/5-10.5 | Circulating H₂ | 20 | 5.0 (inlet) | 10.5 | — |

Applications Across the Hydrogen Value Chain
⚡
Water Electrolysis Hydrogen Production
Compression of electrolysis output (PEM or alkaline) from 0.3–3 MPa to storage or pipeline pressure.
Natural Gas SMR / Methanol Cracking
Feed gas transfer and PSA tail-gas recycle in steam methane reforming and methanol-cracking hydrogen plants.
Chlor-Alkali & Fluorochemical Plants
Hydrogen by-product recovery and compression for polymer and fluorochemical downstream processes.
️
Hydrocracking & Hydrotreating Loops
Circulating hydrogen recycle compressors maintaining reactor partial pressure in petroleum refinery units.
Hydrogen Refuelling Stations (HRS)
Multi-stage cascade compression to 35 MPa or 70 MPa dispensing pressure for passenger and commercial fuel-cell vehicles.
️
High-Pressure Cylinder Filling
15.00–16.50 MPa oil-free charging of industrial hydrogen cylinders and tube trailers.
Grid-Scale Hydrogen Storage
Large-flow compression for underground salt cavern or pressure vessel hydrogen energy storage buffers.
Pharmaceutical Intermediates
High-purity hydrogen supply for pharmaceutical hydrogenation reactions where ISO 14687 gas quality is mandatory.

Customer Case Studies
"We replaced ageing circulating compressors with 4MW-48/12-55 units. The modular skid reduced installation time significantly, and the oil-free design has eliminated the quarterly oil-change downtime we used to accept as normal."
Germany · Petroleum Refinery
Hydrocracking circulating H₂ · 5.0 / 5
"Throughput at our busiest station required a reliable 35 MPa compression solution. Ever Power sized the multi-stage LW-series unit correctly on the first submission. Station uptime has been above 99.2% in the first year."
South Korea · Hydrogen Refuelling Station Operator
HRS cascade storage compression · 5.0 / 5
"Handling variable flow from a 10 MW PEM electrolyser was a challenge several suppliers declined. Ever Power's engineering team proposed a two-unit arrangement with automatic sequencing that tracks electrolyser load accurately."
India · Green Hydrogen Export Project
Electrolysis output compression · 4.0 / 5

Frequently Asked Questions
Ready to Move Forward?
Share your hydrogen process data sheet — inlet pressure, discharge pressure, flow rate, gas composition, and site details — and we will return a full technical and commercial proposal within 48 hours. Non-standard configurations, arctic ratings, explosion-proof variants, and hydrogen refuelling station packages are all handled in-house.
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