How Much Can The Muffler Heat Shield Reduce The Surface Temperature

The surface temperature reduction of a Muffler Heat Shield typically ranges from 30°C to 80°C, with the specific value depending on various factors.
1. Insulation Sleeve Material
Different materials exhibit significantly different thermal insulation properties. For example, a fiberglass insulation sleeve can reduce the muffler's surface temperature from approximately 150°C to below 70°C at room temperature, achieving a reduction of about 80°C. In contrast, an ordinary asbestos insulation sleeve may only lower the temperature by 30°C to 50°C, making it suitable for applications with lower temperature requirements.
2. Initial Temperature of the Muffler
The higher the initial temperature, the greater the temperature reduction achievable by the insulation sleeve. If the muffler's surface temperature is 200°C during normal operation, using a high-quality insulation sleeve may lower it to below 100°C, resulting in a reduction of approximately 100°C. If the initial temperature is only 80°C, it may drop to between 30°C and 50°C after cooling, representing a reduction of 30°C to 50°C.
3. Thickness and Fit of the Insulation Cover
The effectiveness of the Muffler Heat Shield also depends on its thickness and how well it fits. A sufficiently thick cover that fits snugly on the muffler surface minimizes heat loss and provides a more pronounced cooling effect. However, if gaps exist during installation, heat can escape through them, reducing the cooling efficiency.