Tannas Co. & King Refrigeration, Inc. products

TheQuantumOxidation Tester is the only field proven non-liquid RPVOT (formerly known as RBOT) instrument in the industry used for evaluating oxidation resistance over a broad range of oils and lubricants. Widely used for base oil comparisons and as a condition monitoring tool for turbine oils.

The Tapered Bearing Simulator (TBS™) Viscometer is a rotational viscometer for measuring high temperature, high shear rate (HTHS) viscosity of engine oils over a broad shear rate (50,000 to >7 million sec^–1) and temperature range (40°C to 200°C).

King Brookfield Liquid Bath (BLB) measures low temperature viscosity of ATF`s, gear oils and hydraulic oils and other fluid lubricants using a patented SimAir^® technique which allows the use of a small, less costly, constant temperature liquid bath.  The only technique available that permits independent sample analyses which eliminates the need for batch sample testing.  The BLB is a widely used low-temperature test for a variety of industry specifications.

The King Mini-Rotary Viscometer determines borderline pumping temperatures and yield stress determinations of oils and lubricants without the use of chiller baths or thermoelectric cooling.  Measures a broad temperature range of + 80°C to – 40°C (176°F to – 40°F) and incorporates patented direct refrigeration technology for better temperature control and precision.

High foaming tendency and slow foam collapse time are two undesirable responses of engine oils and hydraulic fluids which can result in mechanical failure. The TFAB^™ measures the tendency and stability of foam additive effectiveness in oils and lubricants over a broad temperature range (24°C to 150°C). The single air bath approach of the TFAB^™ dramatically reduces bench space requirements, eliminates the need to replace oxidized (discolored) bath oil, permits more accuracy in reading foam levels, and significantly reduces the hazards of operating sequences of higher temperatures. The TFAB^™ has shown correlation in ASTM round robin studies and has assisted in ASTM efforts of improving the test method precision.

The two most recognized applications of the SB+2 are the Scanning Brookfield Technique (ASTM D5133 & D7110) and the Brookfield Viscosity Test (ASTM D2983).  The use of the patented SimAir^™ Test Cell allows the SB+2 to be held at a constant temperature during the 16-hour soak period of the Brookfield D2983 test. This provides greater versatility, increased sample through-put and improved precision over air baths and programmable liquid baths. The versatility of the SB+2 bath stems from its broad cooling range, both manual and automatic temperature control, the incorporation of a viewing window and five easily replaceable bath covers (Insert Modules). The bath now serves as a cooling source for seven different low-temperature test methods -- making it a cost effective instrument for demanding lab schedules.

King Cloud & Pour Point Bath measures low temperature cloud point and pour point of fluids and lubricants.  Standard manual C&P bath offering an alternative to costly automated devices.  Self-contained refrigeration system with ramp/soak temperature programming ability. The Cloud & Pour Point is a common test for a variety of industry specifications.

King Kinematic Viscosity Baths measure low temperature, ambient, and high temperature viscosity of fluids and lubricants covering a range from -70°C to 150°C.  These standard manual KV baths, with self-contained refrigeration systems, offer an alternative to costly automated devices.  Accommodates up to (4) KV tubes for low temperatures and (6) for high temperatures. The KV is a widely used test for a variety of industry specifications.

The Scanning Brookfield Technique^™ (SBT^™) measures apparent viscosity of fresh, sooted, or highly oxidized engine oils at low temperatures. It determines the susceptibility of engine oils to flow-limited and air-binding responses during slow cooling conditions by providing continuous rheological data over a broad temperature range (+90°C to -45°C).

The evaporation loss/volatility of engine oils is of particular importance to the automotive industry as it closely relates to oil consumption in an engine and can lead to a change in the properties of the engine lubricant. A measured quantity of sample is placed in an evaporation crucible and heated to 250°C for 1-hour while a constant flow of air, controlled at 20 mm H2O vacuum, is drawn over its surface to remove the resultant vapors.  The loss in mass of the oil is determined by weighing before and after the test and calculating the percent loss.