Call Us Now
1-877-240-0909

Simmons Synthetics
Heat Transfer Fluids

ALHT Series Synthetic Heat Transfer Oils

ALHT Series synthetic heat transfer oils were designed to meet the tough thermal demands placed on high temperature heat transfer mediums. The synthetic hydrocarbon base stock is well suited to combat the problems of carbon formation on heated surfaces and decreased fluid life as is commonly encountered with conventional petroleum-based fluids without exhibiting the hazardous characteristics found in aromatic heat transfer oils. The additional benefits of an extremely low vapor pressure and sub-zero pour points allow for increased efficiency while reducing pressure build-up and evaporation losses.

Physical Properties

 

Products

AL50HT

AL100HT

AL200HT

Operating Temperature Range

-50 to 500°F

-20 to 600°F

0 to 575°F

Viscosity

@ 0°F, cSt

@ 100°F, cSt

@ 210°F, cSt

-

49.8

5.3

1.7

-

326

18.2

3.94

-

812

31.85

5.67

Flash Point, ºF (ºC)

330(166)

455(235)

485(252)

Fire Point, ºF (ºC)

355(179)

485(251)

510(266)

Autoignition Temperature, ºF (ºC)

615(324)

650(343)

670(354)

Pour Point, °F (°C)

-100(-73)

-100(-73)

-90(-68)

Vapor Pressure, mm Hg

300°F

400°F

500°F

600°F

700°F

-

11.5

73

300

---

---

-

---

4.1

20

82

---

-

.7

3.8

14

55

---

Thermal Conductivity,

BTU/Hr Ft °F

300°F

400°F

500°F

-

-

.077

.072

.069

-

-

.080

.076

.073

-

-

.085

.083

.081

Boiling Range,
ASTM D1160
10%
90%

590°F

660°F

780°F

840°F

798°F

950°F