Product Description

Thermaflo® LH is a reclaimed, high-performance synthetic heat transfer fluid based on benzyltoluene chemistry. This benzyl aromatic compound delivers exceptional thermal efficiency in closed-loop forced circulation systems, serving as an economical alternative for operations already utilizing similar benzyltoluene-based fluids. Its narrow boiling range of approximately 4°C enables versatile operation in both liquid and liquid-vapor phase applications, making it particularly valuable for processes requiring precise temperature control.
- Extended High-Temperature Capability: Operates reliably from -30°C to 360°C (-22°F to 680°F) with intermittent film temperatures reaching 380°C (716°F).
- Versatile System Compatibility: Functions effectively in non-pressurized systems up to 280°C, and in pressurized configurations for higher temperature demands.
- Seamless Integration: Serves as a direct makeup fluid for systems running Marlotherm LH with no performance compromise.
- Superior Safety Profile: Features a high autoignition temperature of 450°C (842°F), providing an added margin of safety in demanding industrial environments.
Applications
Pharmaceutical Manufacturing
Plastics Processing
Polymer Production
Chemical Synthesis
Reactor Temperature Control
Closed-Loop Heating Systems
Liquid-Vapor Phase Systems
Fine Chemical Production
Distillation Processes · Industrial Process Heating
Benefits
Excellent Thermal Stability
Non-Corrosive to System Components
Low Viscosity for Efficient Heat Transfer
Narrow Boiling Range for Vapor Phase Use
High Autoignition Temperature
Cost-Effective Reclaimed Solution
Product Availability
5 Gal (20 kg)
55 Gal Drum (220 kg)
Bulk (Totes / Tankers)
Product Data
| Property | Specification |
| Appearance | Light Yellow |
| Composition | Benzyl Aromatic (Benzyltoluene) |
| Moisture Content (ppm) | 150 |
| Flash Point, COC | 288°F (142°C) |
| Autoignition Temperature | 842°F (450°C) |
| Kinematic Viscosity @ 40°C (Cs) | 2.6 |
| Kinematic Viscosity @ 100°C (Cs) | 1.1 |
| Density @ 20°C (lbs/gal) | 8.30 |
| Specific Gravity @ 20°C | 0.996 |
| Freeze Point | -29°F (-34°C) |
| Pumpability Limit (KV=400cSt) | -14°F (-25°C) |
| Boiling Range (@ 760 mmHg) | 532°F–540°F (278°C–282°C) |
| Bulk Temperature Range | -22°F–680°F (-30°C–360°C) |
| Maximum Film Temperature | 716°F (380°C) |
| Total Acid Number (Max) | <0.05 mg KOH/g |
| Thermal Conductivity (@ 600°F) | 0.056 BTU/ft/hr |
| Vapor Pressure (@ 600°F) | 33 psi |
| Average Molecular Mass | 182 |
