Festo DSBF Corrosion-Resistant Standard Cylinder — ISO 15552 Profile Cylinder (189 Models) Specs & Selection Guide
2026-06-17
Festo DSBF Series Corrosion-Resistant Standard Cylinder is an enhanced corrosion-resistant version developed on the DSBC platform, conforming to ISO 15552 (ISO 6431 / VDMA 24562). Building on the DSBC’s self-adjusting pneumatic end-position cushioning (PPS) and profile barrel design, the DSBF adds comprehensive corrosion-resistant treatment (C-type coating) to the barrel, end caps and piston rod, significantly extending service life in humid and mildly corrosive environments. The DSBF offers 189 standard part numbers and is the ideal choice for industries such as food & beverage, pharmaceutical, and water treatment that require additional corrosion protection.
Key Product Highlights
- Enhanced Corrosion Resistance (C-type coating): Comprehensive corrosion-resistant treatment on barrel, end caps and piston rod; suitable for humid and mildly corrosive environments
- Self-adjusting Pneumatic End-position Cushioning (PPS): No manual adjustment required; automatically adapts to load and speed changes
- ISO 15552 Standard: Fully conforms to international standard; mounting interface compatible with DSBC series
- Profile Barrel Design: Sensors insert directly into barrel groove for fast and reliable installation
- Environmentally Responsible Design: Manufacturing process and material selection compliant with environmental requirements
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | DSBF |
| Type | Corrosion-resistant ISO 15552 profile standard cylinder |
| Piston bore range | 32 / 40 / 50 / 63 / 80 / 100 mm |
| Stroke range | 10 – 2000 mm |
| Corrosion-resistant treatment | C-type coating (barrel / end caps / piston rod) |
| Cushioning | PPS — Self-adjusting / PPV — Adjustable pneumatic cushioning |
| Standard certifications | ISO 15552 / ISO 6431 / VDMA 24562 |
| Working medium | Compressed air, lubricated or non-lubricated |
Complete DSBF Model List (189 Part Numbers)
Distribution by bore: 32mm: 27 pcs, 40mm: 27 pcs, 50mm: 27 pcs, 63mm: 27 pcs, 80mm: 27 pcs, 100mm: 27 pcs, 125mm: 27 pcs
| Part Number | Material No. | Bore (mm) | Stroke (mm) | Cushioning |
|---|---|---|---|---|
| DSBF-C-…-32- – | 570077 | 32 | – | Configurable base |
| DSBF-C-32- -PPSA-N3-R | 1778516 | 32 | – | Self-adjusting cushioning |
| DSBF-C-32- -PPVA-N3-R | 1772262 | 32 | – | Adjustable cushioning |
| DSBF-C-32-25-PPSA-N3-R | 1778834 | 32 | 25 | Self-adjusting cushioning |
| DSBF-C-32-25-PPVA-N3-R | 1773752 | 32 | 25 | Adjustable cushioning |
| DSBF-C-32-40-PPSA-N3-R | 1778835 | 32 | 40 | Self-adjusting cushioning |
| DSBF-C-32-40-PPVA-N3-R | 1773753 | 32 | 40 | Adjustable cushioning |
| DSBF-C-32-50-PPSA-N3-R | 1778836 | 32 | 50 | Self-adjusting cushioning |
| DSBF-C-32-50-PPVA-N3-R | 1773754 | 32 | 50 | Adjustable cushioning |
| DSBF-C-32-80-PPSA-N3-R | 1778837 | 32 | 80 | Self-adjusting cushioning |
| DSBF-C-32-80-PPVA-N3-R | 1773755 | 32 | 80 | Adjustable cushioning |
| DSBF-C-32-100-PPSA-N3-R | 1778838 | 32 | 100 | Self-adjusting cushioning |
| DSBF-C-32-100-PPVA-N3-R | 1773756 | 32 | 100 | Adjustable cushioning |
| DSBF-C-32-125-PPSA-N3-R | 1778839 | 32 | 125 | Self-adjusting cushioning |
| DSBF-C-32-125-PPVA-N3-R | 1773757 | 32 | 125 | Adjustable cushioning |
| DSBF-C-32-160-PPSA-N3-R | 1778840 | 32 | 160 | Self-adjusting cushioning |
| DSBF-C-32-160-PPVA-N3-R | 1773758 | 32 | 160 | Adjustable cushioning |
| DSBF-C-32-200-PPSA-N3-R | 1778841 | 32 | 200 | Self-adjusting cushioning |
| DSBF-C-32-200-PPVA-N3-R | 1773759 | 32 | 200 | Adjustable cushioning |
| DSBF-C-32-250-PPSA-N3-R | 1778842 | 32 | 250 | Self-adjusting cushioning |
| DSBF-C-32-250-PPVA-N3-R | 1773760 | 32 | 250 | Adjustable cushioning |
| DSBF-C-32-320-PPSA-N3-R | 1778843 | 32 | 320 | Self-adjusting cushioning |
| DSBF-C-32-320-PPVA-N3-R | 1773761 | 32 | 320 | Adjustable cushioning |
| DSBF-C-32-400-PPSA-N3-R | 1778844 | 32 | 400 | Self-adjusting cushioning |
| DSBF-C-32-400-PPVA-N3-R | 1773762 | 32 | 400 | Adjustable cushioning |
| DSBF-C-32-500-PPSA-N3-R | 1778845 | 32 | 500 | Self-adjusting cushioning |
| DSBF-C-32-500-PPVA-N3-R | 1773763 | 32 | 500 | Adjustable cushioning |
| DSBF-C-…-40- – | 570078 | 40 | – | Configurable base |
| DSBF-C-40- -PPSA-N3-R | 1779309 | 40 | – | Self-adjusting cushioning |
| DSBF-C-40- -PPVA-N3-R | 1774182 | 40 | – | Adjustable cushioning |
| DSBF-C-40-25-PPSA-N3-R | 1779431 | 40 | 25 | Self-adjusting cushioning |
| DSBF-C-40-25-PPVA-N3-R | 1774259 | 40 | 25 | Adjustable cushioning |
| DSBF-C-40-40-PPSA-N3-R | 1779432 | 40 | 40 | Self-adjusting cushioning |
| DSBF-C-40-40-PPVA-N3-R | 1774260 | 40 | 40 | Adjustable cushioning |
| DSBF-C-40-50-PPSA-N3-R | 1779433 | 40 | 50 | Self-adjusting cushioning |
| DSBF-C-40-50-PPVA-N3-R | 1774261 | 40 | 50 | Adjustable cushioning |
| DSBF-C-40-80-PPSA-N3-R | 1779434 | 40 | 80 | Self-adjusting cushioning |
| DSBF-C-40-80-PPVA-N3-R | 1774262 | 40 | 80 | Adjustable cushioning |
| DSBF-C-40-100-PPSA-N3-R | 1779435 | 40 | 100 | Self-adjusting cushioning |
| DSBF-C-40-100-PPVA-N3-R | 1774263 | 40 | 100 | Adjustable cushioning |
| DSBF-C-40-125-PPSA-N3-R | 1779436 | 40 | 125 | Self-adjusting cushioning |
| DSBF-C-40-125-PPVA-N3-R | 1774264 | 40 | 125 | Adjustable cushioning |
| DSBF-C-40-160-PPSA-N3-R | 1779437 | 40 | 160 | Self-adjusting cushioning |
| DSBF-C-40-160-PPVA-N3-R | 1774265 | 40 | 160 | Adjustable cushioning |
| DSBF-C-40-200-PPSA-N3-R | 1779438 | 40 | 200 | Self-adjusting cushioning |
| DSBF-C-40-200-PPVA-N3-R | 1774266 | 40 | 200 | Adjustable cushioning |
| DSBF-C-40-250-PPSA-N3-R | 1779439 | 40 | 250 | Self-adjusting cushioning |
| DSBF-C-40-250-PPVA-N3-R | 1774267 | 40 | 250 | Adjustable cushioning |
| DSBF-C-40-320-PPSA-N3-R | 1779440 | 40 | 320 | Self-adjusting cushioning |
| DSBF-C-40-320-PPVA-N3-R | 1774268 | 40 | 320 | Adjustable cushioning |
| DSBF-C-40-400-PPSA-N3-R | 1779441 | 40 | 400 | Self-adjusting cushioning |
| DSBF-C-40-400-PPVA-N3-R | 1774269 | 40 | 400 | Adjustable cushioning |
| DSBF-C-40-500-PPSA-N3-R | 1779442 | 40 | 500 | Self-adjusting cushioning |
| DSBF-C-40-500-PPVA-N3-R | 1774270 | 40 | 500 | Adjustable cushioning |
| DSBF-C-…-50- – | 570079 | 50 | – | Configurable base |
| DSBF-C-50- -PPSA-N3-R | 1779742 | 50 | – | Self-adjusting cushioning |
| DSBF-C-50- -PPVA-N3-R | 1774418 | 50 | – | Adjustable cushioning |
| DSBF-C-50-25-PPSA-N3-R | 1780283 | 50 | 25 | Self-adjusting cushioning |
| DSBF-C-50-25-PPVA-N3-R | 1775258 | 50 | 25 | Adjustable cushioning |
| DSBF-C-50-40-PPSA-N3-R | 1780284 | 50 | 40 | Self-adjusting cushioning |
| DSBF-C-50-40-PPVA-N3-R | 1775259 | 50 | 40 | Adjustable cushioning |
| DSBF-C-50-50-PPSA-N3-R | 1780285 | 50 | 50 | Self-adjusting cushioning |
| DSBF-C-50-50-PPVA-N3-R | 1775260 | 50 | 50 | Adjustable cushioning |
| DSBF-C-50-80-PPSA-N3-R | 1780286 | 50 | 80 | Self-adjusting cushioning |
| DSBF-C-50-80-PPVA-N3-R | 1775261 | 50 | 80 | Adjustable cushioning |
| DSBF-C-50-100-PPSA-N3-R | 1780287 | 50 | 100 | Self-adjusting cushioning |
| DSBF-C-50-100-PPVA-N3-R | 1775262 | 50 | 100 | Adjustable cushioning |
| DSBF-C-50-125-PPSA-N3-R | 1780288 | 50 | 125 | Self-adjusting cushioning |
| DSBF-C-50-125-PPVA-N3-R | 1775263 | 50 | 125 | Adjustable cushioning |
| DSBF-C-50-160-PPSA-N3-R | 1780289 | 50 | 160 | Self-adjusting cushioning |
| DSBF-C-50-160-PPVA-N3-R | 1775264 | 50 | 160 | Adjustable cushioning |
| DSBF-C-50-200-PPSA-N3-R | 1780290 | 50 | 200 | Self-adjusting cushioning |
| DSBF-C-50-200-PPVA-N3-R | 1775265 | 50 | 200 | Adjustable cushioning |
| DSBF-C-50-250-PPSA-N3-R | 1780291 | 50 | 250 | Self-adjusting cushioning |
| DSBF-C-50-250-PPVA-N3-R | 1775266 | 50 | 250 | Adjustable cushioning |
| DSBF-C-50-320-PPSA-N3-R | 1780292 | 50 | 320 | Self-adjusting cushioning |
| DSBF-C-50-320-PPVA-N3-R | 1775267 | 50 | 320 | Adjustable cushioning |
| DSBF-C-50-400-PPSA-N3-R | 1780293 | 50 | 400 | Self-adjusting cushioning |
| DSBF-C-50-400-PPVA-N3-R | 1775268 | 50 | 400 | Adjustable cushioning |
| DSBF-C-50-500-PPSA-N3-R | 1780294 | 50 | 500 | Self-adjusting cushioning |
| DSBF-C-50-500-PPVA-N3-R | 1775269 | 50 | 500 | Adjustable cushioning |
| DSBF-C-…-63- – | 570080 | 63 | – | Configurable base |
| DSBF-C-63- -PPSA-N3-R | 1780600 | 63 | – | Self-adjusting cushioning |
| DSBF-C-63- -PPVA-N3-R | 1775324 | 63 | – | Adjustable cushioning |
| DSBF-C-63-25-PPSA-N3-R | 1780905 | 63 | 25 | Self-adjusting cushioning |
| DSBF-C-63-25-PPVA-N3-R | 1776043 | 63 | 25 | Adjustable cushioning |
| DSBF-C-63-40-PPSA-N3-R | 1780906 | 63 | 40 | Self-adjusting cushioning |
| DSBF-C-63-40-PPVA-N3-R | 1776044 | 63 | 40 | Adjustable cushioning |
| DSBF-C-63-50-PPSA-N3-R | 1780907 | 63 | 50 | Self-adjusting cushioning |
| DSBF-C-63-50-PPVA-N3-R | 1776045 | 63 | 50 | Adjustable cushioning |
| DSBF-C-63-80-PPSA-N3-R | 1780908 | 63 | 80 | Self-adjusting cushioning |
| DSBF-C-63-80-PPVA-N3-R | 1776046 | 63 | 80 | Adjustable cushioning |
| DSBF-C-63-100-PPSA-N3-R | 1780909 | 63 | 100 | Self-adjusting cushioning |
| DSBF-C-63-100-PPVA-N3-R | 1776047 | 63 | 100 | Adjustable cushioning |
| DSBF-C-63-125-PPSA-N3-R | 1780910 | 63 | 125 | Self-adjusting cushioning |
| DSBF-C-63-125-PPVA-N3-R | 1776048 | 63 | 125 | Adjustable cushioning |
| DSBF-C-63-160-PPSA-N3-R | 1780911 | 63 | 160 | Self-adjusting cushioning |
| DSBF-C-63-160-PPVA-N3-R | 1776049 | 63 | 160 | Adjustable cushioning |
| DSBF-C-63-200-PPSA-N3-R | 1780912 | 63 | 200 | Self-adjusting cushioning |
| DSBF-C-63-200-PPVA-N3-R | 1776050 | 63 | 200 | Adjustable cushioning |
| DSBF-C-63-250-PPSA-N3-R | 1780913 | 63 | 250 | Self-adjusting cushioning |
| DSBF-C-63-250-PPVA-N3-R | 1776051 | 63 | 250 | Adjustable cushioning |
| DSBF-C-63-320-PPSA-N3-R | 1780914 | 63 | 320 | Self-adjusting cushioning |
| DSBF-C-63-320-PPVA-N3-R | 1776052 | 63 | 320 | Adjustable cushioning |
| DSBF-C-63-400-PPSA-N3-R | 1780915 | 63 | 400 | Self-adjusting cushioning |
| DSBF-C-63-400-PPVA-N3-R | 1776053 | 63 | 400 | Adjustable cushioning |
| DSBF-C-63-500-PPSA-N3-R | 1780916 | 63 | 500 | Self-adjusting cushioning |
| DSBF-C-63-500-PPVA-N3-R | 1776054 | 63 | 500 | Adjustable cushioning |
| DSBF-C-…-80- – | 570081 | 80 | – | Configurable base |
| DSBF-C-80- -PPSA-N3-R | 1780945 | 80 | – | Self-adjusting cushioning |
| DSBF-C-80- -PPVA-N3-R | 1778184 | 80 | – | Adjustable cushioning |
| DSBF-C-80-25-PPSA-N3-R | 1781061 | 80 | 25 | Self-adjusting cushioning |
| DSBF-C-80-25-PPVA-N3-R | 1778429 | 80 | 25 | Adjustable cushioning |
| DSBF-C-80-40-PPSA-N3-R | 1781062 | 80 | 40 | Self-adjusting cushioning |
| DSBF-C-80-40-PPVA-N3-R | 1778430 | 80 | 40 | Adjustable cushioning |
| DSBF-C-80-50-PPSA-N3-R | 1781063 | 80 | 50 | Self-adjusting cushioning |
| DSBF-C-80-50-PPVA-N3-R | 1778431 | 80 | 50 | Adjustable cushioning |
| DSBF-C-80-80-PPSA-N3-R | 1781064 | 80 | 80 | Self-adjusting cushioning |
| DSBF-C-80-80-PPVA-N3-R | 1778432 | 80 | 80 | Adjustable cushioning |
| DSBF-C-80-100-PPSA-N3-R | 1781065 | 80 | 100 | Self-adjusting cushioning |
| DSBF-C-80-100-PPVA-N3-R | 1778433 | 80 | 100 | Adjustable cushioning |
| DSBF-C-80-125-PPSA-N3-R | 1781066 | 80 | 125 | Self-adjusting cushioning |
| DSBF-C-80-125-PPVA-N3-R | 1778434 | 80 | 125 | Adjustable cushioning |
| DSBF-C-80-160-PPSA-N3-R | 1781067 | 80 | 160 | Self-adjusting cushioning |
| DSBF-C-80-160-PPVA-N3-R | 1778435 | 80 | 160 | Adjustable cushioning |
| DSBF-C-80-200-PPSA-N3-R | 1781068 | 80 | 200 | Self-adjusting cushioning |
| DSBF-C-80-200-PPVA-N3-R | 1778436 | 80 | 200 | Adjustable cushioning |
| DSBF-C-80-250-PPSA-N3-R | 1781069 | 80 | 250 | Self-adjusting cushioning |
| DSBF-C-80-250-PPVA-N3-R | 1778437 | 80 | 250 | Adjustable cushioning |
| DSBF-C-80-320-PPSA-N3-R | 1781070 | 80 | 320 | Self-adjusting cushioning |
| DSBF-C-80-320-PPVA-N3-R | 1778438 | 80 | 320 | Adjustable cushioning |
| DSBF-C-80-400-PPSA-N3-R | 1781071 | 80 | 400 | Self-adjusting cushioning |
| DSBF-C-80-400-PPVA-N3-R | 1778439 | 80 | 400 | Adjustable cushioning |
| DSBF-C-80-500-PPSA-N3-R | 1781072 | 80 | 500 | Self-adjusting cushioning |
| DSBF-C-80-500-PPVA-N3-R | 1778440 | 80 | 500 | Adjustable cushioning |
| DSBF-C-…-100- – | 570082 | 100 | – | Configurable base |
| DSBF-C-100- -PPSA-N3-R | 1781567 | 100 | – | Self-adjusting cushioning |
| DSBF-C-100- -PPVA-N3-R | 1781598 | 100 | – | Adjustable cushioning |
| DSBF-C-100-25-PPSA-N3-R | 1782823 | 100 | 25 | Self-adjusting cushioning |
| DSBF-C-100-25-PPVA-N3-R | 1782253 | 100 | 25 | Adjustable cushioning |
| DSBF-C-100-40-PPSA-N3-R | 1782824 | 100 | 40 | Self-adjusting cushioning |
| DSBF-C-100-40-PPVA-N3-R | 1782254 | 100 | 40 | Adjustable cushioning |
| DSBF-C-100-50-PPSA-N3-R | 1782825 | 100 | 50 | Self-adjusting cushioning |
| DSBF-C-100-50-PPVA-N3-R | 1782255 | 100 | 50 | Adjustable cushioning |
| DSBF-C-100-80-PPSA-N3-R | 1782826 | 100 | 80 | Self-adjusting cushioning |
| DSBF-C-100-80-PPVA-N3-R | 1782256 | 100 | 80 | Adjustable cushioning |
| DSBF-C-100-100-PPSA-N3-R | 1782827 | 100 | 100 | Self-adjusting cushioning |
| DSBF-C-100-100-PPVA-N3-R | 1782257 | 100 | 100 | Adjustable cushioning |
| DSBF-C-100-125-PPSA-N3-R | 1782828 | 100 | 125 | Self-adjusting cushioning |
| DSBF-C-100-125-PPVA-N3-R | 1782258 | 100 | 125 | Adjustable cushioning |
| DSBF-C-100-160-PPSA-N3-R | 1782829 | 100 | 160 | Self-adjusting cushioning |
| DSBF-C-100-160-PPVA-N3-R | 1782259 | 100 | 160 | Adjustable cushioning |
| DSBF-C-100-200-PPSA-N3-R | 1782830 | 100 | 200 | Self-adjusting cushioning |
| DSBF-C-100-200-PPVA-N3-R | 1782260 | 100 | 200 | Adjustable cushioning |
| DSBF-C-100-250-PPSA-N3-R | 1782831 | 100 | 250 | Self-adjusting cushioning |
| DSBF-C-100-250-PPVA-N3-R | 1782261 | 100 | 250 | Adjustable cushioning |
| DSBF-C-100-320-PPSA-N3-R | 1782832 | 100 | 320 | Self-adjusting cushioning |
| DSBF-C-100-320-PPVA-N3-R | 1782262 | 100 | 320 | Adjustable cushioning |
| DSBF-C-100-400-PPSA-N3-R | 1782833 | 100 | 400 | Self-adjusting cushioning |
| DSBF-C-100-400-PPVA-N3-R | 1782263 | 100 | 400 | Adjustable cushioning |
| DSBF-C-100-500-PPSA-N3-R | 1782834 | 100 | 500 | Self-adjusting cushioning |
| DSBF-C-100-500-PPVA-N3-R | 1782264 | 100 | 500 | Adjustable cushioning |
| DSBF-C-…-125- – | 1755169 | 125 | – | Configurable base |
| DSBF-C-125- -PPSA-N3-R | 1792703 | 125 | – | Self-adjusting cushioning |
| DSBF-C-125- -PPVA-N3-R | 1784637 | 125 | – | Adjustable cushioning |
| DSBF-C-125-25-PPSA-N3-R | 1792953 | 125 | 25 | Self-adjusting cushioning |
| DSBF-C-125-25-PPVA-N3-R | 1785012 | 125 | 25 | Adjustable cushioning |
| DSBF-C-125-40-PPSA-N3-R | 1792954 | 125 | 40 | Self-adjusting cushioning |
| DSBF-C-125-40-PPVA-N3-R | 1785013 | 125 | 40 | Adjustable cushioning |
| DSBF-C-125-50-PPSA-N3-R | 1792955 | 125 | 50 | Self-adjusting cushioning |
| DSBF-C-125-50-PPVA-N3-R | 1785014 | 125 | 50 | Adjustable cushioning |
| DSBF-C-125-80-PPSA-N3-R | 1792956 | 125 | 80 | Self-adjusting cushioning |
| DSBF-C-125-80-PPVA-N3-R | 1785015 | 125 | 80 | Adjustable cushioning |
| DSBF-C-125-100-PPSA-N3-R | 1792957 | 125 | 100 | Self-adjusting cushioning |
| DSBF-C-125-100-PPVA-N3-R | 1785016 | 125 | 100 | Adjustable cushioning |
| DSBF-C-125-125-PPSA-N3-R | 1792958 | 125 | 125 | Self-adjusting cushioning |
| DSBF-C-125-125-PPVA-N3-R | 1785017 | 125 | 125 | Adjustable cushioning |
| DSBF-C-125-160-PPSA-N3-R | 1792959 | 125 | 160 | Self-adjusting cushioning |
| DSBF-C-125-160-PPVA-N3-R | 1785018 | 125 | 160 | Adjustable cushioning |
| DSBF-C-125-200-PPSA-N3-R | 1792960 | 125 | 200 | Self-adjusting cushioning |
| DSBF-C-125-200-PPVA-N3-R | 1785019 | 125 | 200 | Adjustable cushioning |
| DSBF-C-125-250-PPSA-N3-R | 1792961 | 125 | 250 | Self-adjusting cushioning |
| DSBF-C-125-250-PPVA-N3-R | 1785020 | 125 | 250 | Adjustable cushioning |
| DSBF-C-125-320-PPSA-N3-R | 1792962 | 125 | 320 | Self-adjusting cushioning |
| DSBF-C-125-320-PPVA-N3-R | 1785021 | 125 | 320 | Adjustable cushioning |
| DSBF-C-125-400-PPSA-N3-R | 1792963 | 125 | 400 | Self-adjusting cushioning |
| DSBF-C-125-400-PPVA-N3-R | 1785022 | 125 | 400 | Adjustable cushioning |
| DSBF-C-125-500-PPSA-N3-R | 1792964 | 125 | 500 | Self-adjusting cushioning |
| DSBF-C-125-500-PPVA-N3-R | 1785023 | 125 | 500 | Adjustable cushioning |
Application Industries
- Food & Beverage: Clamping, positioning and conveying in wet/washdown environments
- Pharmaceutical: Cleanroom equipment requiring corrosion protection
- Water Treatment: Valve actuation in humid and chemical media environments
- General Industry: Automated equipment in high-humidity or mildly corrosive environments
Related Series
- DSBC Series: Standard profile cylinder, first choice for general industrial environments
- DSBG Series: Profile cylinder with tie rod, robust and durable
- CRDNG Series: Full stainless steel standard cylinder for strongly corrosive environments
FAQ
Q: What is the main difference between the DSBF and DSBC?
A: The DSBF adds a C-type corrosion-resistant coating over the DSBC, covering the barrel, end caps and piston rod, significantly improving durability in humid and mildly corrosive environments. The mounting interface and overall dimensions of both models are fully compatible. If your application involves humidity, mild chemical contact or frequent washdowns, the DSBF is the more appropriate choice.
Q: How do I choose between the DSBF and CRDNG stainless steel cylinder?
A: The DSBF uses a coated corrosion-protection approach, offering better cost-effectiveness for mild to moderate corrosive environments. The CRDNG is made from full stainless steel, providing stronger corrosion resistance suitable for extreme environments such as aggressive chemicals, food contact and cleanrooms. Choose based on the corrosion intensity and hygiene requirement level of your application.
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Disclaimer: Product images and some technical specifications on this page are referenced from the official Festo website.