Process gas
Qiangsheng 4M50-21.45/18-195 fresh-hydrogen compressor — Zhejiang Qiangsheng
Qiangsheng 4M50-21.45/18-195 fresh-hydrogen compressor · Zhejiang Qiangsheng
Datasheet
Product overview
Power: Selected 4M50 driver/input required · Pressure: 1.8 → 19.5 MPaG example · Flow: 21.45 m³/min at inlet conditions
The official 4M50-21.45/18-195 fresh-hydrogen page associates its example with Shanshan Wanshunfa. It explicitly lists 21.45 m³/min at inlet conditions, 1.8 MPa(G) suction and19.5 MPa(G) discharge. Gas force is 500 kN and combined piston force 400 kN. These mechanical values are not motor or electrical input.
Other 4M50 examples in the catalogue have different duty points. Their pressure, capacity or features must not be imported into this selection. The model page does not establish motor, stage count, speed, package size or cooling-water consumption. Use an actual selected sheet for those order-specific quantities.
An inlet-volume figure cannot be relabelled Nm³/min. Supply the gas analysis, inlet temperature and required pressure/flow envelope with reference conditions, source variability and process operating cycle. Compare the actual fresh-hydrogen duty and receiving process, rather than selecting solely from the largest discharge figure.
Request matched cylinders/stages, absorbed and driver input, regulation and protective functions. Agree gas-path contamination, materials, seals/vent recovery, cooling/lubrication, pulsation vessels and piping interfaces. Obtain P&ID, layout and foundation/nozzle loads, removal/maintenance access and agreed inspection, mechanical, tightness and performance acceptance. Confirm commissioning attendance, destination documentation, critical spares and warranty. The full original image belongs to the exact official model page; it is not a completed audit of the offered order.
| Catalog reference | QS-4M50-H2 |
|---|---|
| Machine | Process gas |
| Power | Selected 4M50 driver/input required |
| Working pressure | 1.8 → 19.5 MPaG example |
| Published flow | 21.45 m³/min at inlet conditions |
| Air quality | — |
| Duty | Energy / gas |
| Supply | Not specified |
| Plant | Zhejiang Qiangsheng |
| Published example | 4M50-21.45/18-195 fresh hydrogen |
| Inlet-condition volume | 21.45 m³/min;not Nm³/min |
| Suction pressure | 1.8 MPa(G) |
| Discharge pressure | 19.5 MPa(G) |
| Gas force | 500 kN |
| Combined piston force | 400 kN |
| Unprovided ratings | Motor,stages,speed,dimensions and cooling demand |
| Selection basis | Gas analysis,inlet temperature/source variation and operating cases |
| Agreement | Actual cylinder/driver/auxiliary boundary and tests |
Plant
Zhejiang Qiangsheng
Wenzhou
The plant remains the seller. This desk issues the English duty sheet so quotes are comparable across clusters.
- QS-4M80-H2 · Selected driver/input required
- QS-2D80-H2 · Actual recycle-duty driver required
Specification pages
Specifying a Process gas duty
| Duty | Write on the RFQ |
|---|---|
| Process gas compressor manufacturers in China | Process gas is not plant air. Molecular weight, suction pressure, discharge pressure and flow size the machine. A kW from an air catalogue is unused. |
Same type
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Compare the published product information for each manufacturer.
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|---|---|---|---|---|---|---|---|
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 LIBANG-N2Boxed oil-free nitrogen reciprocating compressors
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Process gas | 4.0–5.5 kW, selected 20 Nm³/h models | Selected models: 0.6 MPa inlet; 2.5 / 3.0 / 4.0 MPa outlet | 20 Nm³/h, selected models; confirm basis | — | Libang | RFQ |
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|
Process gas | 850 / 110 kW, distinct oxygen duties | 1.156 → 4.998 or 0.103 → 3.04 MPa; inlet absolute | 10000 / 550 N in source flow column; confirm basis | — | Hangyang | RFQ |
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|
Process gas | Selected D rows: 132 / 355 / 280 kW | Selected inlet → outlet: 0.08 → 12; 2.40 → 3.60; 0.04 → 1.60 MPa | 5 / 10 / 22 m³/min, separate selected duties | — | Jiangxi Gas Compressor — JY Ganzhou | RFQ |
Product information
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
QS-4M50-H2: Voltage and frequency matter as much as bar. State both. Include the required operating conditions with your enquiry.
Issue RFQ