High Temperature Resistance Aluminium Foil HEPA Filter - China Suppliers, High-Quality Factory Direct Sales
🏭 Application Area
High Temperature Paint Spray Line
High Clean Baking Booth
High Purified Baking Box
Food Baking Booth
Pharmaceutical Factory
Use with high temperature equipment to kill germs or viruses, such as in pharmaceutical factories.
Other fire safety requirements of ventilation and air conditioning systems in high temperature environments.
🧱 Filter Media Materials
🔬 Filter Media
This is the core of the filter, determining its filtration efficiency.
Primary Material: Glass Fiber Paper
Characteristics: This is the most common and cost-effective high-temperature resistant filter media. Depending on the formulation and manufacturing process, its long-term temperature resistance typically ranges from 250°C to 400°C.
Characteristics: This is the most common and cost-effective high-temperature resistant filter media. Depending on the formulation and manufacturing process, its long-term temperature resistance typically ranges from 250°C to 400°C.
Ceramic Fiber Paper: Excellent temperature resistance, can be used long-term in environments from 500°C to 800°C or even higher.
Sintered Stainless Steel Metal Fiber Felt: Temperature resistance can exceed 600°C.
PTFE (Polytetrafluoroethylene) Membrane Laminated Media: Suitable for some medium-temperature applications (e.g., continuous operating temperature ≤ 260°C).
Sintered Stainless Steel Metal Fiber Felt: Temperature resistance can exceed 600°C.
PTFE (Polytetrafluoroethylene) Membrane Laminated Media: Suitable for some medium-temperature applications (e.g., continuous operating temperature ≤ 260°C).
🔩 Separator
Primary Material: Aluminum Foil
Other Materials: Stainless Steel Foil
Other Materials: Stainless Steel Foil
🛠️ Sealant / Adhesive
Primary Materials: High-Temperature Silicone or Inorganic Adhesive
🗂️ Frame
The frame is the structural skeleton of the filter and must be robust and heat-resistant.
Galvanized Steel Sheet
Aluminum Sheet
Stainless Steel Sheet (304 / 316)
🔒 Gasket
Silicone Cord with Glass Fiber Sleeving
Silicone Foam Strip
Alkali-Free Glass Fiber Cord
It is recommended that you provide your specific working environment details (such as temperature, chemical environment, efficiency requirements, etc.) to a professional filter manufacturer, who can then recommend the most suitable, safe, and reliable product for your needs.
📊 The Efficiency of HEPA Filter
Efficiency Range: The efficiency of currently available high-efficiency filters ranges from 99.9% to 99.999999%, and they can be selected based on specific requirements. The rational selection of filter efficiency and face velocity contributes to comprehensive economic benefits.
For filters made of the same material, higher efficiency typically results in greater resistance and higher cost, while lower efficiency leads to reduced resistance and cost. Altering the air velocity will also affect resistance, efficiency, and the number of filters required, so appropriate selection should be made according to specific conditions.
⏳ Service Life of Filters
As dust accumulates on the filter media, the resistance increases. When the resistance reaches an unreasonable level, the filter must be discarded. Sometimes, excessive resistance can cause previously captured dust to become dislodged and re-enter the airflow; when this risk arises, the filter should also be replaced.
The resistance of a filter increases with higher airflow rates. By increasing the surface area of the filter media, the relative velocity of air passing through the filter can be reduced, thereby decreasing the resistance.
💨 Wind Speed Relationship Diagram
📋 Product Parameters
Remarks: (1) Initial resistance tolerance of ±10% (2) Support customer size
❓ Frequently Asked Questions (FAQ)
Q
What temperature range can high-temperature HEPA filters withstand?
A
It depends on the filter media material used. Glass fiber paper typically handles 250°C–400°C for long-term use. Ceramic fiber paper can operate in environments of 500°C–800°C or higher, and sintered stainless steel metal fiber felt can exceed 600°C. Always confirm your operating temperature before selecting a filter.
Q
What is the filtration efficiency of high-temperature HEPA filters?
A
High-temperature HEPA filters are available in a wide efficiency range, from 99.9% up to 99.999999%. The appropriate efficiency level should be selected based on your specific application requirements, balancing performance, resistance, and cost.
Q
Which industries or environments are high-temperature HEPA filters suitable for?
A
These filters are widely used in high-temperature paint spray lines, high-clean and high-purified baking booths, food baking ovens, pharmaceutical factories requiring sterilization, and any HVAC or ventilation systems with strict fire safety requirements in high-temperature settings.
Q
How do I know when to replace my high-temperature HEPA filter?
A
Replace the filter when the airflow resistance increases to an unreasonable or specified maximum level. Additionally, if excessive resistance causes previously captured dust to dislodge and re-enter the airflow, the filter should be replaced immediately to prevent contamination.
Q
Does air velocity affect the performance of a high-temperature HEPA filter?
A
Yes. Higher airflow rates increase filter resistance. To reduce resistance, the surface area of the filter media can be increased, which lowers the relative air velocity through the filter. Proper face velocity selection also directly impacts filtration efficiency, service life, and overall system economics.
Q
Can high-temperature HEPA filters be customized to specific sizes?
A
Yes. Custom sizes are supported to meet various installation requirements. Please provide your specific dimensions, operating temperature, chemical environment, and efficiency requirements to a professional filter manufacturer for tailored recommendations. Note that initial resistance tolerance is ±10%.