Oil Bath: How to Determine Correct Size Filter

TABLE A: 4-CYCLE SINGLE ACTING ENGINES

TABLE B: BLOWERS, TURBOCHARGERS,
ROTARY COMPRESSORS

No. of Cyl.

Maximum Engine Speed - R.P.M

Find maximum CFM free air rating of equipment under Blower CFM column in selection table “F”. Read across to the right and select correct size filter from column specifying type required.

1

Over 2400 Key 1

2400-1601 Key 2

1600-1 Key 6

2

Over 1200 Key 1

1200-801 Key 2

800-1 Key 5

3

Over 800 Key 1

800-533 Key 2

532-1 Key 4

4

Over 600 Key 1

600-401 Key 2

400-1 Key 3

5

Over 480 Key 1

480-321 Key 2

320-1 Key 2

6

Over 400 Key 1

400-267 Key 2

266-1 Key 2

7

Over 343 Key 1

343-229 Key 2

228-1 Key 2

8+

Over 300 Key 1

300-201 Key 1

200-1 Key 1

       

TABLE C: SINGLE ACTING AIR COMPRESSORS

TABLE D: DOUBLE ACTING AIR COMPRESSORS

No. of Cyl.

Maximum Compressor Speed - R.P.M.

No. of Cyl.

Maximum Compressor Speed – R.P.M.

1

Over 1200 Key 1

1200-801 Key 2

800-1 Key 5

1

Over 600 Key 1

600-401 Key 2

400-1 Key 3

2

Over 600 Key 1

600-401 Key 2

400-1 Key 3

2

Over 300 Key 1

300-201 Key 2

200-1 Key 2

3

Over 400 Key 1

400-267 Key 2

266-1 Key 2

3

Over 200 Key 1

200-134 Key 2

133-1 Key 2

4

Over 300 Key 1

300-201 Key 2

200-1 Key 1

4

Over 150 Key 1

150-101 Key 1

100-1 Key 1


TABLE E: P.D.C.F.M. (Piston Displacement Cubic Feet per Minute)

For Engines = Cubic Inch Displacement x Max. R.P.M. x .00029

For Compressors = Cubic Inch Displacement x Max. R.P.M. x .00058

Note: Cubic Inch Displacement = Bore x Bore x Stroke x No. Cylinders x .7854. For Double Acting Engines and Compressors; Multiply by 2.

Falls Filtration Technologies reserves the right to change any model or specification at any time without notice.

Oil Bath:

Request an Oil Bath Brochure in PDF Format

Falls Filtration Technologies reserves the right to change any model or specification at any time without notice.