Broad model range
Multiple diameter and capacity series support portable and medium-capacity gas applications.
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Product family 03Aluminum Alloy Gas Cylinders
QDBG CHINA supplies seamless aluminum alloy gas cylinders across four confirmed diameter and pressure series. The current range covers 3 to 30 L at 150 or 200 bar, with valve, finish, marking and certification confirmed for the selected gas service and market.
QDBG aluminum alloy cylinder seriesProduct overview
Configured to the application—not selected from a label alone.
150 and 200 bar series
Available working-pressure families include Ø140, Ø159 and Ø203 mm at 150 bar, plus Ø184 mm at 200 bar.
Order-specific configuration
Valve, thread, colour, marking, protection accessories and certification are confirmed for the selected model.
Technical product range
Compare aluminum cylinders by diameter series.
Open a series to compare every listed model by water capacity, length, minimum wall thickness, nominal weight and working pressure.
Four confirmed diameter and pressure families
The catalog covers 3–30 L water capacities across Ø140, Ø159, Ø184 and Ø203 mm seamless aluminum cylinder series. Models are available at 150 or 200 bar according to the selected diameter family.
Discuss your aluminum cylinder requirement →Ø140 mm3–12 L150 bar · 6.6 mm minimum wall
Ø159 mm5–12 L150 bar · 7.4 mm minimum wall
Ø184 mm5–16 L200 bar · 11.7 mm minimum wall
Ø203 mm7–30 L150 bar · 9.5 mm minimum wall
Aluminum alloy cylinder series
GB/T 11640 · ISO 7866Ø140 mm · 150 bar series3–12 L
| Model | Capacity (L) | Length* (mm) | Min. wall (mm) | Nominal weight* (kg) | WP (bar) | Standard |
|---|---|---|---|---|---|---|
| LWI-140-3-15 H | 3 | 317 | 6.6 | 3.05 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-4-15 H | 4 | 397 | 6.6 | 3.65 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-5-15 H | 5 | 476 | 6.6 | 4.25 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-6-15 H | 6 | 555 | 6.6 | 4.85 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-7-15 H | 7 | 634 | 6.6 | 5.44 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-8-15 H | 8 | 713 | 6.6 | 6.04 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-9-15 H | 9 | 792 | 6.6 | 6.64 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-10-15 H | 10 | 872 | 6.6 | 7.24 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-11-15 H | 11 | 951 | 6.6 | 7.84 | 150 | GB/T 11640 / ISO 7866 |
| LWI-140-12-15 H | 12 | 1030 | 6.6 | 8.43 | 150 | GB/T 11640 / ISO 7866 |
Ø159 mm · 150 bar series5–12 L
| Model | Capacity (L) | Length* (mm) | Min. wall (mm) | Nominal weight* (kg) | WP (bar) | Standard |
|---|---|---|---|---|---|---|
| LWI-159-5-15 H | 5 | 395 | 7.4 | 4.8 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-6-15 H | 6 | 465 | 7.4 | 5.4 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-7-15 H | 7 | 517 | 7.4 | 6 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-8-15 H | 8 | 579 | 7.4 | 6.6 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-9-15 H | 9 | 640 | 7.4 | 7.2 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-10-15 H | 10 | 701 | 7.4 | 7.8 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-11-15 H | 11 | 762 | 7.4 | 8.3 | 150 | GB/T 11640 / ISO 7866 |
| LWI-159-12-15 H | 12 | 823 | 7.4 | 8.9 | 150 | GB/T 11640 / ISO 7866 |
Ø184 mm · 200 bar series5–16 L
| Model | Capacity (L) | Length* (mm) | Min. wall (mm) | Nominal weight* (kg) | WP (bar) | Standard |
|---|---|---|---|---|---|---|
| LWI-184-5-20 H | 5 | 341 | 11.7 | 7.4 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-6-20 H | 6 | 390 | 11.7 | 8.3 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-7-20 H | 7 | 439 | 11.7 | 9.1 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-8-20 H | 8 | 489 | 11.7 | 10 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-9-20 H | 9 | 538 | 11.7 | 10.8 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-10-20 H | 10 | 587 | 11.7 | 11.7 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-11-20 H | 11 | 637 | 11.7 | 12.5 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-12-20 H | 12 | 686 | 11.7 | 13.4 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-13-20 H | 13 | 735 | 11.7 | 14.2 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-14-20 H | 14 | 785 | 11.7 | 15.1 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-15-20 H | 15 | 834 | 11.7 | 15.9 | 200 | GB/T 11640 / ISO 7866 |
| LWI-184-16-20 H | 16 | 884 | 11.7 | 16.8 | 200 | GB/T 11640 / ISO 7866 |
Ø203 mm · 150 bar series7–30 L
| Model | Capacity (L) | Length* (mm) | Min. wall (mm) | Nominal weight* (kg) | WP (bar) | Standard |
|---|---|---|---|---|---|---|
| LWI-203-7-15 H | 7 | 367 | 9.5 | 7.7 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-8-15 H | 8 | 405 | 9.5 | 8.3 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-9-15 H | 9 | 442 | 9.5 | 8.9 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-10-15 H | 10 | 480 | 9.5 | 9.5 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-11-15 H | 11 | 518 | 9.5 | 10.1 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-12-15 H | 12 | 555 | 9.5 | 10.7 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-13.4-15 H | 13.4 | 608 | 9.5 | 11.5 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-14-15 H | 14 | 630 | 9.5 | 11.8 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-15-15 H | 15 | 668 | 9.5 | 12.4 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-16-15 H | 16 | 706 | 9.5 | 13 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-17-15 H | 17 | 743 | 9.5 | 13.6 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-18-15 H | 18 | 781 | 9.5 | 14.2 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-19-15 H | 19 | 818 | 9.5 | 14.8 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-20-15 H | 20 | 856 | 9.5 | 15.4 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-25-15 H | 25 | 1044 | 9.5 | 18.4 | 150 | GB/T 11640 / ISO 7866 |
| LWI-203-30-15 H | 30 | 1232 | 9.5 | 21.3 | 150 | GB/T 11640 / ISO 7866 |
* Length excludes the valve. Nominal weight excludes the valve and accessories. Final valve, thread, colour, marking, protection accessories and applicable certification are confirmed for the selected model and order.
Key product pages
Select by water capacity.
Use these focused capacity pages for model-specific enquiry and related configurations. The complete four-series comparison remains available above.
3L Aluminum Alloy Gas Cylinder
LWI-140-3-15 H
View specifications →
4L Aluminum Alloy Gas Cylinder
LWI-140-4-15 H
View specifications →5L Aluminum Alloy Gas Cylinder
LWI-140-5-15 H / LWI-159-5-15 H / LWI-184-5-20 H
View specifications →6L Aluminum Alloy Gas Cylinder
LWI-140-6-15 H / LWI-159-6-15 H / LWI-184-6-20 H
View specifications →7L Aluminum Alloy Gas Cylinder
LWI-140-7-15 H / LWI-159-7-15 H / LWI-184-7-20 H / LWI-203-7-15 H
View specifications →8L Aluminum Alloy Gas Cylinder
LWI-140-8-15 H / LWI-159-8-15 H / LWI-184-8-20 H / LWI-203-8-15 H
View specifications →9L Aluminum Alloy Gas Cylinder
LWI-140-9-15 H / LWI-159-9-15 H / LWI-184-9-20 H / LWI-203-9-15 H
View specifications →
10L Aluminum Alloy Gas Cylinder
LWI-140-10-15 H / LWI-159-10-15 H / LWI-184-10-20 H / LWI-203-10-15 H
View specifications →11L Aluminum Alloy Gas Cylinder
LWI-140-11-15 H / LWI-159-11-15 H / LWI-184-11-20 H / LWI-203-11-15 H
View specifications →12L Aluminum Alloy Gas Cylinder
LWI-140-12-15 H / LWI-159-12-15 H / LWI-184-12-20 H / LWI-203-12-15 H
View specifications →13L Aluminum Alloy Gas Cylinder
LWI-184-13-20 H
View specifications →
13.4L Aluminum Alloy Gas Cylinder
LWI-203-13.4-15 H
View specifications →14L Aluminum Alloy Gas Cylinder
LWI-184-14-20 H / LWI-203-14-15 H
View specifications →15L Aluminum Alloy Gas Cylinder
LWI-184-15-20 H / LWI-203-15-15 H
View specifications →16L Aluminum Alloy Gas Cylinder
LWI-184-16-20 H / LWI-203-16-15 H
View specifications →17L Aluminum Alloy Gas Cylinder
LWI-203-17-15 H
View specifications →18L Aluminum Alloy Gas Cylinder
LWI-203-18-15 H
View specifications →19L Aluminum Alloy Gas Cylinder
LWI-203-19-15 H
View specifications →20L Aluminum Alloy Gas Cylinder
LWI-203-20-15 H
View specifications →25L Aluminum Alloy Gas Cylinder
LWI-203-25-15 H
View specifications →30L Aluminum Alloy Gas Cylinder
LWI-203-30-15 H
View specifications →The current confirmed range covers Ø140, Ø159, Ø184 and Ø203 mm series. Final valve, neck thread, finish, marking, accessories and certification are confirmed for the selected model and order.
Reference data
Technical selection guide
Published values describe the available product family. The final drawing, dimensions, pressure, valve, marking and certification follow the confirmed model and order.
- Water capacity
- 3–30 L across the current catalog series
- Working pressure
- 150 or 200 bar, by model
- Outside diameters
- Ø140 / Ø159 / Ø184 / Ø203 mm
- Construction
- Seamless aluminum alloy cylinder
- Applicable standards
- GB/T 11640 / ISO 7866
- Order options
- Valve, thread, colour, marking, guard, trolley and export packing
Typical applications
Built around real operating requirements.
STANDARD FAMILIESGB/T 11640 · ISO 7866 · Model-specific certification
Availability depends on the selected model, certificate scope and destination-market requirements. Please confirm the required approval before ordering.
Project enquiry
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