Dynamic Decaler Contact
MultiTherm ULT-170 ® Heat Transfer Fluid


MultiTherm ULT-170 ®

MultiTherm ULT-170 ® heat transfer fluid extends low-end operating ranges far beyond the boundaries of most competitive brands. Even at temperatures below -170°F (-112°C), the fluid remains pumpable.

MultiTherm ULT-170 ® allows for cost-effective retrofits with minimal equipment modifications. Choose its thermal stability, environmental performance, biodegradability and cost effectiveness for many critical applications.

Viscosity of MultiTherm ULT - 170 ®
Recommended Temperature Range
-170°F (-112°C) to 325°F (163°C)

Typical Properties of MultiTherm ULT-170®
Composition:
Hydrocarbon Blend
Property
US units
SI units
Freeze Point
<-200°F
<-129°C
Boiling Point:
384-354°F
176-179°C
Flash Point
(closed cup):
127°F
53°C
Flash Point
(open cup):
142°F
61°C
Fire Point:
147°F
64°C
Autoignition Temperature:
730°F
388°C
Critical Temperature1:
729°F
387°C
Critical Pressure1:
33.6 atm
34 bar
Avg. Molecular Weight:
135
Appearance and Color: Transparent, clear to light yellow
Dielectric Constant:
2.3
1 Estimated

Density, Specific Heat, Thermal Conductivity of MultiTherm ULT-170 ®

Typical Properties of MultiTherm ULT -170®US Units
Temp.
°F
Density
lb/ft3
Specific Heat
Btu/lb °F
Btu/(hr)(ft2)(°F /ft)
-170
59.1
0.312
0.0956
-120
57.8
0.337
0.0916
-60
56.2
0.367
0.0868
-20
55.1
0.387
0.0836
0
54.6
0.397
0.0820
20
54.0
0.407
0.0804
60
53.0
0.427
0.0772
120
51.4
0.457
0.0724
Typical Properties of MultiTherm ULT-170® SI Units
Temp.
°C
Density
kg/m3
Specific Heat
kJ/kg K
Thermal Conductivity
W/m K
-125
956.76
1.287
0.1627
-100
937.5
1.375
0.1577
-75
918.24
1.462
0.1527
-50
898.98
1.550
0.1477
-25
879.72
1.637
0.1427
0
860.46
1.725
0.1377
50
821.94
1.900
0.1277
100
783.42
2.075
0.1177