502551 Oil Air Separator Filter

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This flange type oil gas separator filter is designed for rotary screw air compressor systems and related compressed air equipment. It is used to separate oil from compressed air in industrial compressor applications across mining, drilling, manufacturing, plant operations, and general industrial air supply.

OEM Numbers

For cross-reference only. Fits equivalent part numbers with matching dimensions and application.

502551
5073457
N09003
DV750VC
OS5191
P525768

Technical Specifications

Application System
Rotary Screw Air Compressor / Compressed Air System
Outer Diameter
355 / 257 mm
Inner Diameter
243 mm
Dimensions (OD × Height)
355 × 257 × 243 × 512 mm
Package Size
45 × 45 × 55 cm
MOQ
20 pcs

Compatible Brands & Models

This separator filter is used on industrial air compressor equipment, including rotary screw compressors, drilling compressors, and compressed air systems used in mining, quarry operations, drilling work, manufacturing plants, workshop air supply, industrial maintenance, and general heavy-duty operating environments. It is suitable for equipment fleets and aftermarket service applications where stable oil-air separation is required in continuous industrial use.

DEMAG
  • SC 17 DS
  • SC 230 DS
  • SC 231 DS
  • SC 232 DS
  • SC 234 DS
  • SC 172 DS
  • SC 174 DS
DEMAG
  • SC 121 D
  • SC 140-174 DS
  • SC 140 DS
  • SC 141 DS
  • SC 142 DS
  • SC 170 DS
  • SC 171 DS
BOTTARINI
  • GBV 100
MAHLE
  • MSKF 90
SANDVIK
  • DI 550
SULLAIR
  • SK 110
  • SK 90 E
TAMROCK
  • TITON 400
  • TITON 500
WORTHINGTON
  • ROLLAIR 100 A

Frequently Asked Questions

1. What types of equipment is this filter used on?

This filter is used on rotary screw air compressors, drilling compressors, and other industrial compressed air systems. Typical operating scenarios include mining, drilling, plant air supply, heavy-duty workshop use, and general industrial compressor service.

2. Is this a direct aftermarket replacement for 502551,

OS5191, P525768, DV750VC, N09003, and 5073457?
Yes. This unit is supplied as an aftermarket replacement for those listed cross reference numbers. Buyers should still confirm separator type, flange structure, and key dimensions before bulk purchase.

3. Where is this oil gas separator installed and what is its function?

It is installed in the oil-air separation section of the compressor system. Its function is to separate oil from compressed air before the air moves further through the system.

4. Why is the flange type structure important when selecting this separator?

The flange type design affects mounting compatibility and installation fit. For replacement purchasing, matching the flange structure and main dimensions is as important as matching the part number.

5. What is the MOQ and do you support samples, wholesale, or OEM?

The MOQ is 20 pcs. Sample orders, wholesale supply, and OEM cooperation can be supported for importers, distributors, and aftermarket compressor parts buyers.

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Send Your Part Number or Application

If you are matching by part number, equipment model, or key dimensions, you can use this page as areference and then send your inquiry with quantity and application details for confirmation.

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