Product Description
Thermaflo® J is a high-performance synthetic heat transfer fluid composed of diethylbenzene isomers, an alkylated aromatic compound specially engineered for demanding low-temperature applications. This fluid excels in liquid phase pressurized systems requiring both heating and cooling capabilities, offering outstanding low-temperature pumpability down to -78°C (-108°F) while maintaining excellent thermal stability to protect against accidental overheating.
- Exceptional Low-Temperature Performance: Operates efficiently in liquid phase from -80°C to 315°C (-110°F to 600°F), with pumpability maintained at extremely low temperatures.
- Dual-Phase Capability: Can also be used in vapor phase systems operating from 180°C to 315°C (358°F to 600°F).
- Superior Thermal Stability: Provides excellent protection against accidental overheating with stable performance across the entire temperature range.
- Single-Fluid Solution: Ideal for batch processing applications, eliminating system flush requirements associated with steam-brine or steam-glycol systems.
Applications
Pharmaceutical Manufacturing
Environmental Test Chambers
Fiber Spinning
Chemical Processing
Batch Processing
Single-Fluid Heating & Cooling Systems
Heat Exchangers
Pressurized Liquid-Phase Systems
Vapor-Phase Systems
Reactor Temperature Control
Benefits
Long Fluid Life
Excellent Heat Transfer
Outstanding Low-Temperature Pumpability
Wide Operating Temperature Range
Non-Corrosive to Common Metals and Alloys
Eliminates Multi-Fluid System Flushes
Product Availability
5 Gal (20 kg)
55 Gal Drum (220 kg)
Bulk (Totes / Tankers)
Product Data
| Property | Specification |
| Appearance | Colorless to Pale Yellow |
| Composition | Diethylbenzenes (Alkylated Aromatic) |
| Moisture Content (ppm) | <200 |
| Flash Point, COC | 139°F (59°C) |
| Autoignition Temperature | 770°F (410°C) |
| Kinematic Viscosity @ 40°C (Cs) | 0.85 |
| Kinematic Viscosity @ 100°C (Cs) | 0.48 |
| Density @ 20°C (lbs/gal) | 7.21 |
| Specific Gravity @ 20°C | 0.865 |
| Freeze Point | <-114°F (<-81°C) |
| Pumpability Limit (KV=400cSt) | -108°F (-78°C) |
| Boiling Point (@ 760 mmHg) | 351°F (177°C) |
| Bulk Temperature Range | -100°F–600°F (-73°C–316°C) |
| Maximum Film Temperature | 630°F (332°C) |
| Total Acid Number (Max) | <0.05 mg KOH/g |
| Thermal Conductivity (@ 600°F) | 0.040 BTU/ft/hr |
| Vapor Pressure (@ 600°F) | 175 psi |
| Average Molecular Mass | 134 |