Product Overview
Impermeable graphite blocks are widely used in heat exchangers, condensers, and coolers for corrosive chemical applications. With exceptional corrosion resistance to most acids, salts, and organic solvents, combined with excellent thermal conductivity, graphite heat exchanger blocks provide reliable performance in demanding chemical processing environments where metals would rapidly corrode.
Key Features
- Excellent corrosion resistance to most corrosive media
- High thermal conductivity for efficient heat transfer
- Impermeable - resin impregnated to prevent leakage
- Smooth channel surfaces for minimal fouling
- Custom hole patterns and configurations available
- Good thermal shock resistance
- Long service life in corrosive environments
Technical Specifications
| Parameter | Unit | Value |
|---|---|---|
| Material | - | Resin Impregnated Graphite |
| Bulk Density | g/cm³ | 1.75 - 1.85 |
| Thermal Conductivity | W/(m·K) | 100 - 130 |
| Compressive Strength | MPa | 60 - 80 |
| Flexural Strength | MPa | 30 - 40 |
| Permeability | - | Impermeable |
| Max Operating Temp | °C | 180 (resin impregnated) |
| Max Size | mm | 500x500x2000 |
Applications
- Chemical process heat exchangers
- Sulfuric acid and HCl acid cooling
- Hydrochloric acid condensers
- Phosphoric acid concentration
- Waste acid recovery systems
- Pharmaceutical and food processing heat transfer
- Marine and industrial cooling systems
Why Choose Jincheng Graphite Heat Exchanger Blocks?
We supply precision-machined graphite blocks and heat exchanger components for chemical equipment manufacturers. Our graphite blocks are resin-impregnated for impermeability and precision drilled with custom channel patterns. With deep expertise in graphite material properties and chemical processing requirements, we provide reliable graphite solutions for corrosive heat transfer applications.
FAQ
Q: What chemicals are graphite heat exchangers resistant to?
A: Impermeable graphite is resistant to most acids (except nitric acid and hot concentrated sulfuric acid), salts, organic solvents, and corrosive gases. It is widely used for hydrochloric acid, dilute sulfuric acid, phosphoric acid, and chloride applications. Please consult us for specific chemical compatibility questions.
Q: What is the maximum operating temperature?
A: Resin-impregnated graphite heat exchanger blocks are typically limited to 180-200°C due to the impregnating resin. For higher temperature applications, we can provide different impregnation materials or graphite grades with higher temperature ratings.
Q: Can you drill custom hole patterns for heat exchanger channels?
A: Yes, we specialize in precision drilling of custom hole patterns and channel configurations in graphite blocks. Please provide your heat exchanger design drawings, and we will manufacture blocks with the exact hole diameters, spacing, and patterns required for your heat transfer duty.
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