MultiTherm FF-1 Flushing Fluid

MultiTherm FF-1 ® Flushing Fluid is for use in start-up or general maintenance of heat transfer fluid systems. During new equipment start-up, it is an economical way to remove loose material such as weld splatter, fine particulate matter, etc. left in lines and equipment, along with oil and some preservative coatings. It is useful for general maintenance purposes for removing used heat transfer fluid from a system prior to recharge or changeover to another fluid.

MultiTherm FF-1 ® Flushing Fluid is formulated to be compatible with MultiTherm and most other heat transfer fluids so that small residual amounts left in the equipment will not be a problem.

MultiTherm FF-1 ® Physical Characteristics
Chemical Type Light Distillate Oil
Appearance Pale Yellow
Odor Faint
Pour Point, ASTM D97 -20°F
(-29°C)
Density @ 60°F/16°C 7.29 lb/gal
(0.874g/cc)
Flash Point, COC, ASTM D92 285°F
(141°C)
Average Molecular Weight 242
Maximum Recommended Operating Temperature 392°F
(200°C)
Heat of Vaporization 103 Btu/lb
(240  kJ/kg)
Heat of Combustion 19,400 Btu/lb
(45.2 MJ/kg)
Coefficient of Thermal Expansion 0.00047/°F
(0.00085/°C)
Typical Properties
Open System 225°F
Base Oil Light Distillate
Appearance Clear, pale straw to water white
Odor Slight oily
Specific Gravity @ 59°F (15°C) 0.910
Density, lb/gal @ 59°F (15°C) 7.578
(3.437 kg/gal)
Pour Point, ASTM D97 -40°F
(-40°C)
Flash Point, coc, ASTM D92 201°F
(160°C)
Autoignition Temp, Estimated 650°F
(343°C)
Initial Boiling Point, ASTM D1160 520°F
(271°C)
Viscosity, SUS, @ 100°F
(38°C)
110
Pumpable, Centrifugal @ 465 cP 32°F
(0°C)
Average Molecular Weight 305
Maximum use Temperature
Open System 225°F
Closed System 450°F for several days only. Use nitrogen blanket or cold seal/thermal Buffer tank connected to expansion tank.