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Low Pressure Coalescing Oil Separator

Maximum Working Pressure - 450 psig

Description

Our coalescing oil separators are designed to replace other models in the industry, and are engineered with the service company in mind. The filter is removable through the top flange assembly. Our flange/cover plate arrangement is easy to remove, which eliminates the need for additional clearance during installation.

All coalescing oil separators use a borosilicate glass filter element, which is designed to remove small oil particles and system contaminants. Therefore, it is important to monitor pressure drop for new installations. Once the pressure differential exceeds 15 psig, it is recommended to replace the filter.

For refrigerants and conditions not listed, see our sizing calculator or contact Westermeyer Industries for assistance.
*Replacement float assembly and gasket available for flanged oil separator (part number W1900-30).

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  Catalog NumberFigureODS Conn. SizeDimensions (in)
Min DCFMMax DCFMReplacement Filter  
ABCD

Sealed

Units

UL Listed COS4-03 1 3/8 8.25 4 N/A N/A 0.6 6 N/A 15 Precharge Amt. (oz.)
COS4-04 1 1/2 8.38 4 N/A N/A 0.6 6 N/A 15
COS4-05 1 5/8 10.56 4 N/A N/A 1 10 N/A 15
COS4-07 1 7/8 10.88 4 N/A N/A 1 10 N/A 15
COS4-11 2 1-1/8 17.38 4 N/A N/A 2.5 25 N/A 15
COS4-13  2 1-3/8 17.38 4 N/A N/A 2.5 25 N/A 15

Servicable

Units

UL Listed COS4-05F 3 5/8 16.25 4 N/A 6 1 10 90-050K 16
COS4-07F 3 7/8 16.25 4 N/A 6 1 10 90-050K 16
COS4-11F 3 1-1/8 20.63 4 N/A 10 2.5 25 90-051K 16
COS4-13F 3 1-3/8 20.63 4 N/A 10 2.5 25 90-051K 16
OS6-13FC* 4 1-3/8 29 6 5 15 1.4 30 90-016K 16
OS6-15FC* 4 1-5/8 29 6 5 15 1.4 30 90-016K 16
OS6-21FC* 4 2-1/8 26 3 2 15 1.4 30 90-016K 25
W-1902C* 4 2-1/8 32 8 5 17 2.1 30 90-016K 25
W-1903C-A* 4 2-5/8 38 10 5 21 4.0 40 90-020K 25
ASME OS12-31C* 4 3-1/8 49 12.75 4 12 7.0 70 90-021K 25
OS12-41C* 4 4-1/8 49 12.75 4 17 17 170 90-040K 25
OS14-31C* 4 3-1/8 56 14 4 14 10 100 90-019K 25

Separator/

Resevoir

UL Listed COS4-05FR 5 5/8 19.5 4 N/A 6 1 10 90-050K .60 Oil Capacity (gal.)
COS4-07FR 5 7/8 19.5 4 N/A 6 1 10 90-050K .60
COS4-11FR 5 1-1/8 28.63 4 N/A 10 2.5 25 90-051K .85
COS4-13FR 5 1-3/8 28.63 4 N/A 10 2.5 25 90-051K .85
OS6-15FCR 6 1-58 34 6 N/A 15 1.4 30 90-016K 2
OS6-21FCR 6 2-1/8 34 6 N/A 15 1.4 30 90-016K 2
W-1902CR 6 2-1/8 30 8 N/A 17 2.1 30 90-016K 2
W-1903CR-A 6 2-5/8 41 10 N/A 21 4.0 40 90-020K 3.5
ASME OS12-31CR 6 3-1/8  41 12.75 N/A 12 7.0 70 90-021K 5
OS12-41CR 6 4-1/8  41 12.75 N/A 12 17 170 90-040K 5
OS14-31CR 6 3-1/8 46 14 N/A 14 10 100 90-019K 5