The separator this fits
The Donaldson DSO 530 is a compressed-air oil/water separator. It uses replaceable filter bags, which is what the STERLING kit on this page supplies. The unit, lid and pipework stay in place.
Check the label on your unit against the part number above. If it does not match exactly, tell us what it says and we will identify it.
With or without the pre-filter
CSU30PST is CSU30SPST without its pre-filter bag (A), for the P units. The bags are the same, so they carry CSU30SPST part numbers.
- CSU30SPST (this page) with the pre-filter bag, for SP units
- CSU30PST without it, for P units
What's in the box
3 bags. Every bag supplied is pictured below, so you can check what arrives against what you ordered.
What you are replacing
3 bodies in the kit. Compare against what you removed. Dimensions are given per body, not per kit.
| Part number | Dimensions |
|---|---|
| CSU30SPST/A | Ø202 × 140 mm |
| CSU30SPST/B | Ø201 × 370 mm |
| CSU30SPST/C | Ø204 × 340 mm |
The same kit also fits these makes
CSU30SPST is a single kit serving 4 models across 3 manufacturers.