AF-WS Series Cyclone Water Separators
Take the bulk water out before anything expensive sees it
Centrifugal water separators from 2.4 to 450 Nm³/min. The same housing as the AF-D filter range, finished black and fitted with a cyclone element — no consumable, no maintenance and no rising pressure drop. A tangential inlet spins the air, the liquid is thrown to the wall and gravity drops it to the drain.
Models: AF-15WS to AF-F4500WS · 19 models · Filtration & air treatment
- 98 % Separation efficiency
- 0.07 bar Pressure drop, constant
- Nil Elements to replace
- 450 Nm³/min top capacity
Key specifications
| Separation principle | Centrifugal and inertial |
|---|---|
| Separation efficiency | ≥ 98 % above 10 µm |
| Particle size separated | ≤ 10 µm |
| Initial pressure loss | 0.07 bar |
| Element | None — maintenance free |
| Standard working pressure | 7 bar |
| Air temperature | 2 – 80 °C |
| Drain | Ball valve fitted; auto drain optional |
| Mounting | Vertical, pipe supported |
| Housing life | 10 years |
| Medium | Compressed air, non-corrosive gas |
Why this range
- No element and nothing consumable — the only maintenance is checking the drain
- Pressure drop stays at 0.07 bar for the life of the vessel
- Threaded aluminium bodies to 16 bar up to 50 Nm³/min; flanged carbon steel to 10 bar above
- Shares head, bowl and bracket with AF-D filters — common spares
- Lengthens element life on every filter behind it
Models and technical data
Aluminium bodies — 16 bar
| Model | Nm³/min | scfm | Connection | Δp bar | Max bar | Dimensions A × B × C × D mm | kg |
|---|---|---|---|---|---|---|---|
| AF-15WS | 2.4 | 92 | RC1/2" | 0.07 | 16 | 88 × 32 × 250 × 173 | 1.5 |
| AF-25WS | 3.6 | 138 | RC3/4" | 0.07 | 16 | 88 × 32 × 250 × 173 | 1.5 |
| AF-50WS | 4.5 | 173 | RC1" | 0.07 | 16 | 88 × 32 × 250 × 173 | 1.5 |
| AF-75WS | 7.5 | 288 | RC1" | 0.07 | 16 | 123 × 46 × 346 × 173 | 3 |
| AF-100WS | 10.5 | 403 | RC1-1/2" | 0.07 | 16 | 123 × 46 × 346 × 173 | 3 |
| AF-200WS | 20 | 768 | RC2" | 0.07 | 16 | 160 × 62 × 544 × 173 | 6.5 |
| AF-250WS | 25 | 960 | RC2-1/2" | 0.07 | 16 | 160 × 62 × 544 × 173 | 6.5 |
| AF-700WS | 42 | 1613 | RC2-1/2" | 0.07 | 16 | 240 × 105 × 724 × 173 | 10 |
| AF-800WS | 50 | 1920 | RC3" | 0.07 | 16 | 240 × 105 × 724 × 173 | 10 |
Weights complete, dry, with ball valve.
Carbon steel vessels — 10 bar
| Model | Nm³/min | scfm | Connection | Δp bar | Max bar | Dimensions A × B × C × D mm | kg approx. |
|---|---|---|---|---|---|---|---|
| AF-F650WS | 65 | 2496 | DN125 | 0.07 | 10 | 460 × 214 × 1200 × 250 | ≈ 80 |
| AF-F750WS | 75 | 2880 | DN125 | 0.07 | 10 | 589 × 229 × 1245 × 300 | ≈ 110 |
| AF-F880WS | 88 | 3380 | DN125 | 0.07 | 10 | 589 × 229 × 1245 × 300 | ≈ 110 |
| AF-F1100WS | 110 | 4224 | DN150 | 0.07 | 10 | 645 × 260 × 1300 × 300 | ≈ 130 |
| AF-F1300WS | 130 | 4993 | DN150 | 0.07 | 10 | 645 × 260 × 1300 × 300 | ≈ 130 |
| AF-F1500WS | 150 | 5761 | DN200 | 0.07 | 10 | 748 × 420 × 1420 × 300 | ≈ 170 |
| AF-F1700WS | 170 | 6529 | DN200 | 0.07 | 10 | 748 × 420 × 1420 × 300 | ≈ 170 |
| AF-F4500WS | 450 | 17282 | DN300 | 0.07 | 10 | 980 × 360 × 1600 × 300 | ≈ 310 |
Working pressure 4–10 bar g; designed to GB 150.
With a separator, and without one
| With a separator | Without one | |
|---|---|---|
| What the first filter sees | Aerosol only | Aerosol plus slugs of liquid |
| Element change interval | Normal — set by Δp | Shortened, sometimes drastically |
| Liquid carry-over downstream | Effectively none | Whenever demand surges |
| Pressure drop across the train | Stable | Rises quickly between changes |
| Desiccant bed life | Full design life | Reduced — oily water reaches the bed |
| Cost of the stage | Lowest in the train | — |
Where it is used
- Immediately after the aftercooler
- At the receiver outlet
- Ahead of the first coalescing filter
- At the bottom of long pipe runs