Compair-Demag CK4175-1, direct aftermarket replacement. This separator is an aftermarket separator designed as a direct replacement for units used in Compair-Demag, Gardner Denver, and other compatible compressed air systems. It features borosilicate micro glass fibre media with a 3 µm filtration rating, effectively removing oil and particulate from compressed air. With a permissible flow of 870 m³/h and an out-in flow direction, this separator is built to the original dimensions and ratings. Its robust construction includes an o-ring seal, total height of 305 mm, and a net weight of 4.15 kg, ensuring reliable performance in demanding industrial applications.
Technical properties & cross references
Specifications
| Filtration Media |
Borosilicate micro glass fibre 3 µm |
| Media type |
Borosilicate micro glass fibre |
| Filtration Rating |
3 µm |
| Permissible Flow |
870 m3/h |
| Flow direction |
Out-In |
| Total Height |
305 mm (12") |
| Type |
o-ring |
| Product Net Weight |
4.15 kg (9.15 lbs) |
| Largest Inner Diameter |
157 mm (6 3/16") |
| Outer Diameter |
220 mm (8 21/32") |
| Largest Outer Diameter |
272 mm (10 23/32") |
| Stat. HS-Code |
84149000 |
| Country of Manufacture |
China |
Compatible equipment
Gardner Denver
VS 75ESM 75ESM 80ESM 55
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| Oxfil |
USD 142.34 |
16 Oct 2026 |
| FilterFinder Online |
USD 273.00 |
15 Oct 2026 |
| Air Compressor Services |
USD 349.50 |
15 Oct 2026 |
| Compressor Parts Express |
USD 590.32 |
15 Oct 2026 |
| The Air Market |
USD 1,731.64 |
15 Oct 2026 |
| Spare Part Mart |
USD 113.87 |
Today |
Our price of USD 113.87 is 20% to 93% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Use cases & applications
High-Volume Continuous Operation
In facilities running large compressors like the Gardner Denver VS 75 or Compair-Demag L 75 RS continuously, this separator handles flows up to 870 m³/h without pressure drop issues, maintaining system efficiency.
Dusty or Harsh Environments
For outdoor or dusty industrial settings, the borosilicate micro glass fibre media captures 3 µm particles reliably, protecting downstream equipment from contamination and extending service life.
Inventory Consolidation
Workshops servicing multiple brands (Gardner Denver, Compair-Demag, Noitech, etc.) can stock one part number for various models like ESM 75, L 55 G, and L 75 G, simplifying inventory management.
OEM Replacement Cycle
When replacing original separators on older Compair-Demag L 55 from 2004 or Gardner Denver ESM 80, this aftermarket option offers identical fit and performance at a competitive price.
Frequently asked questions
How do I confirm this separator fits my compressor?
Check your compressor model against our verified list: Gardner Denver VS 75, ESM 75, ESM 80, ESM 55; Compair-Demag L 55 RS, L 55 from 2004, L 55 G, L 75 RS, L 75 from 2004, L 75 G. If your model is not listed, please contact us with your OEM part number for cross-reference.
What is the filtration rating and media type?
This separator uses borosilicate micro glass fibre media with a filtration rating of 3 µm, effectively capturing oil aerosols and solid particles down to that size.
What are the dimensions and how does it seal?
The separator has a total height of 305 mm, outer diameter of 220 mm, largest inner diameter of 157 mm, and largest outer diameter of 272 mm. It seals via an o-ring type connection.
Is this an OEM or aftermarket part?
This is a high-quality aftermarket replacement, built to the original dimensions and ratings for Compair-Demag, Gardner Denver, and other brands. It is not a genuine OEM part but offers equivalent performance.
How do I install this separator?
Installation is straightforward: remove the old separator, ensure the o-ring is seated properly, and install the new one with flow direction out-in. Torque to manufacturer specifications if applicable. Always follow your compressor manual.