Synthetic and Hot Oil Transfer Fluids

The Radco XCELTHERM® product line consists of synthetic and hot oil heat transfer fluids designed and manufactured with the most current technology and highest quality raw materials available. All aspects of XCELTHERM® manufacturing and packaging processes are controlled by a stringent ISO 9001 quality program. Backed by a high degree of technical support and service, our heat transfer fluids fit a wide range of needs in petroleum refineries, synthetic fiber plants and other manufacturing environments.

 Chiller Fluid (High Grade Brine)

Typical properties of XCELTHERM ® CF

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 150ºF 65ºC
Maximum Film Temperature 180ºF 82ºC
Pour Point (ASTM D97)   -83ºF -64ºC
Physical Properties
Coefficient of Thermal Expansion (average % per 100 °C) 3
Coefficient of Thermal Expansion (average % per 100 °F) 1.63
Is this fluid EPA regulated? No
Low Temperature Limit -83ºF -64ºC
Boiling Point 266ºF 130ºC
Freezing Point -83°F -64°C
Density @ 0°C (32°F) 83.33 lbs/cu.ft. 1335 kg/m3
Density @ -40°C (-40°F) 84.36 lbs/cu.ft. 1351 kg/m3
Viscosity @ 0°C (32°F), cSt (ASTM D445) 3
Viscosity @ -40°C (-40°F), cSt (ASTM D445) 46.2
Specific Heat @ 0°C (32°F) 0.558 BTU/lb-°F 2.33 J/g-K-°C
Specific Heat @ -40°C (-40°F) 0.554 2.32
* Data represents typical laboratory samples and are not guaranteed for all samples.

Cooling from -80ºF to 150ºF (-64ºC to 65ºC)
Direct glycol replacement with up to 5 times better heat transfer efficiency
Food contact rated (HT1), environmentally friendly

“Hot Oil” Heat Transfer Fluids

Typical properties of XCELTHERM ® 600 Heat Transfer Fluid

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 600ºF 316ºC
Maximum Film Temperature 650ºF 343ºC
Pumpability (2000cP)   -4ºF -20ºC
Physical Properties
Composition Radco-engineered hydrogenated white oil
Odor faint, oily
Appearance Water-white, clear liquid
Flash Point (minimum) 380ºF 193ºC
Fire Point (minimum) 420ºF 216ºC
Autoignition Temperature (minimum) 660ºF 349ºC
Initial Boiling Point 574ºF 301ºC
Final Boiling Point 874ºF 468ºC
Density 7.1 pounds per gallon @ 77ºF   25ºC
Specific Gravity 0.850@ 77ºF   25ºC
Average Molecular Weight 350
* Data represents typical laboratory samples and are not guaranteed for all samples.

Premium thermal oil, long life, non-toxic, no odor
For use up to 600ºF (315ºC)
Food contact rated, NSF (HT1) FDA

Typical properties of XCELTHERM ® CA

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 550ºF 288ºC
Maximum Film Temperature 600ºF 315ºC
Pour Point 10ºF -12ºC
Physical Properties
Composition Radco-engineered mineral oil
Odor None
Appearance Water-white
Flash Point (ASTM D-92) (min) 375ºF 190ºC
Fire Point (ASTM D-92) (min) 395ºF 200ºC
Kinematic Viscosity @ 40ºC (ASTM D-445) 16.17
Initial Boiling Point 575ºF 300ºC
Water Content, ppm < 75
Density 7.1 pounds per gallon @ 77ºF   25ºC
Specific Gravity 0.855
Color, Saybolt (ASTM D-156) 30 min
* Data represents typical laboratory samples and are not guaranteed for all samples.

Superior economy
Non-toxic, high purity, premium fluid

Typical properties of XCELTHERM ® 445 FP

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 550ºF 288ºC
Maximum Film Temperature 600ºF 316ºC
Pour Point   5ºF -15ºC
Physical Properties
Composition Radco-engineered paraffinic oil
Odor Faint, oily
Appearance Water-white, clear liquid
Flash Point (minimum) COC 445ºF 229ºC
Fire Point (minimum) 480ºF 249ºC
Autoignition Temperature (minimum) 715ºF 379ºC
Initial Boiling Point 675ºF 357ºC
Density 7.20 pounds per gallon @ 77ºF   25ºC
Specific Gravity 0.8639 @ 77ºF   25ºC
Average Molecular Weight 446
* Data represents typical laboratory samples and are not guaranteed for all samples.

High flash point of 445ºF (229ºC)
Meets Coast Guard Marine requirements

Flushing Fluids

Liquid Phase Heat Transfer System –

Cleaning and Fluid Startup Procedure

Objectives:

1) Remove the used heat transfer fluid from the system.
2) Solvate sludge and other degradation products as much as possible for removal by draining.

FLUSHING FLUID

Radco offers a 100 SUS oil (XCELTHERM® LT) that is additive-free and has a high aromatic content for “hot oil” systems or an aromatic solvent (XCELTHERM® FF) for synthetic fluid systems. The higher the aromatic content the better since it is the aromatic component of the oil that has a solvent effect on system sludge and other degradation products.

PROCEDURE

1) Drain system including any obvious low points such as the bottom of jackets, etc.

2) Break the lines at the pump intake and discharge. Air blow the system to remove any “heel”.

3) Charge the system with flushing fluid and circulate at approximately 400 F° for approximately 8 hours. If system design permits, the flushing fluid should be run through the expansion tank for approximately two hours of this eight-hour period. The volume of flushing fluid should be sufficient to insure that the pump does not cavitate on start-up. Although this volume is ultimately determined by system configuration, a good rule of thumb is that the flushing fluid volume should be approximately 80 % of the system fluid volume.

4) Again drain system including any obvious low points.

5) Again break the lines at the pump and air blow.

6) Charge XCELTHERM® fluid, preferably from a system low point to avoid airlocks, and follow start-up procedures.

                                                                                                                        LIQUID PHASE HEAT TRANSFER SYSTEM
START-UP PROCEDURE

Objective: Vent any moisture which may have condensed in the system and any residual light ends remaining from a system flush.

PROCEDURE

In this procedure the fluid should be run through the expansion tank if possible, as the lights will be vented more quickly. In any event, a watch should be maintained on the expansion tank vent or the system pressure gauge. It is not unusual to see puffs of vapor from this vent or an increase in system pressure as the fluid is heated and the lights escape. However, if an increase in the rate of vapor generation is observed, the temperature should be maintained or even slightly reduced until the rate of venting lessens. Only then should the temperature be increased.

1) At a temperature rate increase not to exceed 1°F (½°C) per minute bring the system temperature to 200°F (93°C) and circulate for approximately the length of time necessary for the heat transfer fluid (HTF) to cycle once through the system. For example, if the pump output is 180 gallons/minute (680 Liters/minute) and the system fluid volume is 1800 gallons (6800 Liters), the HTF cycle time is 10 minutes.

2) At the above temperature rate bring the system to 230°F (110°C) and circulate for 1 HTF cycle while observing the expansion tank vent/pressure gauge.

3) At the above temperature rate bring the system to 260°F (127°C) and circulate for 1 HTF cycle while observing the expansion tank vent/pressure gauge.

4) At the above temperature rate bring the system to 300°F (149°C) and circulate for 1 HTF cycle while observing the expansion tank/pressure gauge. At this point, if everything is running satisfactorily and you have been running through the tank, the expansion tank may be bypassed and the system put in its normal fluid flow configuration.

5) The system temperature may now be raised to operating temperature in 50°F (25°C) increments with each incremental rise followed by an HTF cycle time observation period.

Hot running solvent for thermal oil systems
Flush system while running production
Compatible with most heat transfer fluids

Liquid Phase Heat Transfer System

Cleaning and Fluid Startup Procedure

Objectives:

1) Remove the used heat transfer fluid from the system.
2) Solvate sludge and other degradation products as much as possible for removal by draining.

FLUSHING FLUID

Radco offers a 100 SUS oil (XCELTHERM® LT) that is additive-free and has a high aromatic content for “hot oil” systems or an aromatic solvent (XCELTHERM® FF) for synthetic fluid systems. The higher the aromatic content the better since it is the aromatic component of the oil that has a solvent effect on system sludge and other degradation products.

PROCEDURE

1) Drain system including any obvious low points such as the bottom of jackets, etc.

2) Break the lines at the pump intake and discharge. Air blow the system to remove any “heel”.

3) Charge the system with flushing fluid and circulate at approximately 400 F° for approximately 8 hours. If system design permits, the flushing fluid should be run through the expansion tank for approximately two hours of this eight-hour period. The volume of flushing fluid should be sufficient to insure that the pump does not cavitate on start-up. Although this volume is ultimately determined by system configuration, a good rule of thumb is that the flushing fluid volume should be approximately 80 % of the system fluid volume.

4) Again drain system including any obvious low points.

5) Again break the lines at the pump and air blow.

6) Charge XCELTHERM® fluid, preferably from a system low point to avoid airlocks, and follow start-up procedures.

LIQUID PHASE HEAT TRANSFER SYSTEM
START-UP PROCEDURE

Objective: Vent any moisture which may have condensed in the system and any residual light ends remaining from a system flush.

PROCEDURE

In this procedure the fluid should be run through the expansion tank if possible, as the lights will be vented more quickly. In any event, a watch should be maintained on the expansion tank vent or the system pressure gauge. It is not unusual to see puffs of vapor from this vent or an increase in system pressure as the fluid is heated and the lights escape. However, if an increase in the rate of vapor generation is observed, the temperature should be maintained or even slightly reduced until the rate of venting lessens. Only then should the temperature be increased.

1) At a temperature rate increase not to exceed 1°F (½°C) per minute bring the system temperature to 200°F (93°C) and circulate for approximately the length of time necessary for the heat transfer fluid (HTF) to cycle once through the system. For example, if the pump output is 180 gallons/minute (680 Liters/minute) and the system fluid volume is 1800 gallons (6800 Liters), the HTF cycle time is 10 minutes.

2) At the above temperature rate bring the system to 230°F (110°C) and circulate for 1 HTF cycle while observing the expansion tank vent/pressure gauge.

3) At the above temperature rate bring the system to 260°F (127°C) and circulate for 1 HTF cycle while observing the expansion tank vent/pressure gauge.

4) At the above temperature rate bring the system to 300°F (149°C) and circulate for 1 HTF cycle while observing the expansion tank/pressure gauge. At this point, if everything is running satisfactorily and you have been running through the tank, the expansion tank may be bypassed and the system put in its normal fluid flow configuration.

5) The system temperature may now be raised to operating temperature in 50°F (25°C) increments with each incremental rise followed by an HTF cycle time observation period.

Hot running solvent for synthetic oil high temp systems
Compatible with Dowtherm® A and most others

Synthetic Thermal Fluid

Typical properties of XCELTHERM ® MK1

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature
  • Liquid Phase
750ºF 400ºC
  • Vapor Phase
750ºF 400ºC
Maximum Film Temperature 800ºF 427ºC
Crystallizing Point 53.6ºF   12ºC
Physical Properties
Composition Stable eutectic mixture of 73% Diphenyl Oxide and 27% Biphenyl
Flash Point (minimum) 255ºF 124ºC
Fire Point (minimum) 265ºF 129ºC
Autoignition Temperature (minimum) 1150ºF 621ºC
Normal Boiling Point @760mm Hg 495ºF 257ºC
Critical Temperature 930.3ºF 499ºC
Critical Pressure 480.3 psia
Critical Volume 0.05153 cu ft/lb
Heat of Fusion 23.3 cal/g
Specific Resistivity 6.4 x 10″ ohm-cm @ 68ºF 20ºC
Surface Tension in Air 36.6 dynes/cm @ 77ºF 25ºC
Volume Contraction Upon Freezing 6.30%
Volume Expansion Upon Melting 6.66%
Moisture 300 ppm (maximum)
Density 8.83 pounds per gallon @ 77ºF   25ºC
Specific Gravity 1.044 to 1.066 @ 77ºF   25ºC
Average Molecular Weight 166
* Data represents typical laboratory samples and are not guaranteed for all samples.

Cooling from -80ºF to 150ºF (-64ºC to 65ºC)
Direct glycol replacement with up to 5 times better heat transfer efficiency
Food contact rated (HT1), environmentally friendly

Typical properties of XCELTHERM ® LV series


LV1
Key Operating Temperatures
Maximum Bulk Fluid
  • Liquid Phase
700ºF 371ºC
  • Vapor Phase
700ºF 371ºC
Maximum Film Temperature 750ºF 400ºC
Crystallizing Point 45ºF 7.2ºC
Physical Properties
Flash Point (minimum) 251ºF 122ºC
Fire Point (minimum) 263ºF 128ºC
Autoignition Temperature (minimum) 1120ºF 604ºC
Normal Boiling Point@760mm Hg 496ºF 258ºC
Critical Temperature 931.1ºF 499.5ºC
Critical Pressure 443.2 psia
Critical Volume 0.0516 cu ft/lb
Moisture (Maximum) 300 ppm
Density @ 77ºF/25ºC 8.84 lbs/gal
Specific Gravity @ 77ºF/25ºC 1.060
Average Molecular Weight 171.9
Composition Stable mixtures of 1,1 Diphenylethane and Diphenyl Oxide
* Data represents typical laboratory samples and are not guaranteed for all samples.

Liquid or Vapor phase to 700ºF (370ºC)
Biphenyl free alternative for high temp fluids

Typical properties of XCELTHERM ® HT series

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 660ºF 349ºC
Maximum Film Temperature 710ºF 377ºC
Pumpability (2000cP) -35ºF -37ºC
Physical Properties
Composition Radco-engineered alkyl aromatic
Odor Mild
Appearance Straw yellow, clear liquid
Pour Point -50ºF -46ºC
Flash Point (minimum) 320ºF 160ºC
Fire Point (minimum) 338ºF 170ºC
Autoignition Temperature (minimum) 842ºF 450ºC
Initial Boiling Point (minimum) 535ºF 280ºC
Density 8.3 pounds per gallon @ 77ºF   25ºC
Specific Gravity 0.99 @ 77ºF   25ºC
Average Molecular Weight 275
* Data represents typical laboratory samples and are not guaranteed for all samples.

Liquid phase to 660ºF (350ºC)
Low vapor pressure, reduces odors and leaks

Typical properties of XCELTHERM ® XT series

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 650ºF 343ºC
Maximum Film Temperature 700ºF 371ºC
Pumpability (2000cP) -70ºF -57ºC
Physical Properties
Composition Radco-engineered alkyl aromatic
Odor Mild
Appearance Water white to straw yellow, clear liquid
Pour Point -100ºF -73ºC
Flash Point (minimum) 250ºF 121ºC
Fire Point (minimum) 283ºF 139ºC
Autoignition Temperature (minimum) 803ºF 428ºC
Initial Boiling Point 527ºF 275ºC
Density 8.29 pounds per gallon @ 77ºF   25ºC
Specific Gravity 0.994 @ 77ºF   25ºC
Average Molecular Weight 182
* Data represents typical laboratory samples and are not guaranteed for all samples.

High efficiency heating/cooling fluid
-70ºF to 650ºF range (-55ºC to 345ºC)
Liquid or vapor phase, 527ºF (275ºC) IPB

Typical properties of XCELTHERM ® HTR series

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 630ºF 330ºC
Maximum Film Temperature 680ºF 360ºC
Pour Point (ASTM D-97)   -5ºF -21ºC
Physical Properties
Composition Synthetic hydrocarbons (100%)
Odor Faint
Appearance Clear to straw yellow
Flash Point (ASTM D-92) (min) 390ºF 200ºC
Fire Point (ASTM D-92) (min) 410ºF 210ºC
Autoignition Temperature (ASTM D-2155) 700ºF 371ºC
Initial Boiling Point (min) 535ºF 280ºC
Final Boiling Point (max) 755ºF 400ºC
Density 7.4 pounds per gallon @ 77ºF 25ºC
Specific Gravity 0.88 – 1.08
Average Molecular Weight 342
* Data represents typical laboratory samples and are not guaranteed for all samples.

Liquid phase to 630ºF (330ºC)
No odor, high temperature synthetic
Economic price for use over 600ºF
No vapor pressure at rated temperatures

Typical properties of XCELTHERM ® 500

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 500ºF 260ºC
Maximum Film Temperature 550ºF 288ºC
Pumpability (2000cP) -80ºF -62ºC
Physical Properties
Composition Radco-engineered Polyalphaolefin
Odor None
Appearance Water-white, clear liquid
Flash Point (minimum) 325ºF 163ºC
Fire Point (minimum) 350ºF 177ºC
Autoignition Temperature (minimum) 625ºF 329ºC
Density 6.58 pounds per gallon @ 77ºF   25ºC
Specific Gravity 0.79 @ 77ºF   25ºC
Average Molecular Weight 275

Heat/cool from –80ºF to 500ºF (-60ºC to 260ºC)
Non-toxic, no odor and food contact rated
High heat transfer for increased output

XCELTHERM® 315 – Typical Properties

Economical synthetic oil rated to 550ºF (288ºC) with very high resistance to oxidation as well as high resistance to sludge and fouling.

Typical Properties

Key Operating Temperatures
Maximum Bulk Fluid Operating Temperature 550°F 290°C
Maximum Film Temperature 600°F 315°C
Flash Point (Pensky Martens)(ASTM D93) 338°F 170°C
Flash Point (COC)(ASTM D92) 396°F 202°C
Fire Point (minimum)(ASTM D92) 425°F 218°C
Autoignition Temperature (Minimum) 626°F 330°C
Pumpability, at 2000 mm2/s (cSt) -15°F -25°C
Pumpability, at 300 mm2/s (cSt) 17°F -8°C
Initial Boiling Point 664°F 350°C
Physical Properties
Composition Alkylated aromatic
Odor Faint, characteristic
Appearance Clear, bright, yellow liquid
Kinematic Viscosity, at 104°F/40°C 20 cSt
Kinematic Viscosity, at 212°F/100°C 3.55 cSt
Critical Temperature 908.3°F 468.8°C
Critical Pressure 191 psia
Critical Density 258 kg/m3
Moisture Content (maximum) 300 ppm
Density, at 77°F/25°C 7.25lbs/gal 868 kg/m3
Specific Gravity @ 77°F/25°C 0.876
Coefficient of Thermal Expansion 0.000534/°F 0.000961/°C
Heat of Vaporization at Maximum Use Temperature 91.2 BTU/lb 212.2 kJ/kg
Heat of Combustion 20,000 BTU/lb 46,520 kJ/kg
Moisture Content (maximum) 200 ppm
* Data represents typical laboratory samples and are not guaranteed for all samples

 

Economic synthetic oil rated to 550ºF (288ºC)
Very high resistance to oxidation
High resistance to sludge and fouling