Products: Refrigeration Oil &
Vacuum Pump Oil

C-3, C-4, C-5 Refrigeration Oil

These are mineral naphthenic lubricants manufactured by Calumet Lubricant Company and are available in three viscosities:
C-3 (RO15) = 150 SUS
C-4 (RO30) = 300 SUS
C-5 (RO50) = 500 SUS

These are specifically designed for today's high performance air conditioning and refrigeration compressors. These modern compressors run at higher speeds and generate higher temperatures so they require better lubrication. Use of these oils will insure continued efficient operation, providing the important properties required from an efficient refrigeration oil.

Using the proper grade of our refrigeration oil will insure continued efficient operation, providing the important properties required from an efficient refrigeration oil:

Good Lubrication

The basic purpose of refrigeration oil is to lubricate the moving parts in an air conditioning or refrigeration compressor. The refrigeration oil must function without maintenance or service at higher than usual temperatures for the life of the unit. It must also be miscible with the refrigerant while retaining its lubricant properties.

Nu-Calgon Wholesaler, Inc. refrigeration oils are designed to provide years of trouble-free service in refrigeration and air conditioning units. There is no finer refrigeration oil in the market today.

Good Low Temperature Performance

Small amounts of refrigeration oil are carried with the refrigerant through the entire system and are subject to very low temperatures. Poor low temperature solubility can cause the oil to separate from the refrigerant and form wax-like deposits which can clog the system. This is more critical in R22 and R502 systems than in R12 systems because R12 has much better oil solubility.

The "Floc Point Test" is used to determine low temperature performance. The floc point is determined by cooling a mixture of 10% oil and 90% R12 in a sealed tube. The mixture is observed at 5 degree increments for cloudiness due to flocculate formation.

Nu-Calgon Wholesaler, Inc. Refrigeration Oils combine excellent solubility with good floc and pour points to provide excellent low temperature characteristics.

Good Stability

Refrigeration oil must have both thermal and chemical stability. Thermal stability simply means resistance to high temperature. Chemical stability refers to the oil's ability to remain chemically stable in the presence of other components in the system at very high temperatures.

A test for refrigeration oil stability is the "fourteen day sealed tube test." Oil, Refrigerant 12 and Swedish steel are heated to 327°F in a pressure chamber. After 14 days, the amount of Refrigerant 22 that has developed from the breakdown of Refrigerant 12 is measured. The smaller the quantity formed, the better the stability of the oil.

Additional Important Notes

Contamination problems are extremely critical in refining and handling refrigeration oils. Great care is used to insure that Nu-Calgon Wholesaler, Inc. Refrigeration Oils are free of moisture and noncondensables such as air. The same degree of care must be used by the service professional to make certain that oil remains clean and dry.

Here are some rules for handling refrigeration oil:

1. Use clean tools - Pumps, funnels, tubing, etc. - while working with the oil.
2. Recap the bottle immediately after use. Refrigeration oil in an open bottle will absorb moisture.
3. Keep refrigeration oil in its original container. If you must pour oil into another container, be sure that container is clean and dry.
4. Properly dispose of any oil that you think dirt or moisture has contaminated. Don't risk using it. It is much less expensive to replace a bottle of refrigeration oil than to repair or replace a compressor.

Typical Data

*ASTM unless otherwise specified
**Sun Method

Packaging

Product Literature Downloads:

C-3 MSDS Information
C-4 MSDS Information
C-5 MSDS Information
Refrigeration Oils - Product Bulletin

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