The Stainless Steel Glass Fiber High Temperature Heat Resistant HEPA Filter is an air filtration device specifically designed for high-temperature environments. Its core characteristics, technical parameters, application areas, and selection recommendations are as follows:
Core CharacteristicsHigh-Temperature Resistance Performance
Filter Media: Utilizes ultra-fine glass fiber filter paper capable of withstanding temperatures of 250℃-350℃ (with some models capable of withstanding instantaneous temperatures up to 400℃), suitable for high-temperature industrial scenarios such as coating machines, ovens, and tunnel furnaces.
Frame: Constructed with 304 or 316L stainless steel frames, offering corrosion resistance and high strength, capable of withstanding thermal expansion and contraction without deformation.
Sealing Material: Sealed with silicone, ceramics, or high-temperature epoxy adhesive to ensure no leakage at high temperatures.
High-Efficiency Filtration Capability
Efficiency Grade: Meets H13 (≥99.95%) or H14 (≥99.995%) standards (EN1822), providing extremely high filtration efficiency for particles above 0.3μm.
Structure: The filter paper is specially folded to form a deep pleated structure, increasing the filtration area and reducing pressure drop, while aluminum foil separators ensure uniform airflow distribution.
Structure and Sealing Performance
Non-Spacer Design: Separates filter paper with hot melt adhesive or aluminum foil to reduce leakage risk, suitable for scenarios requiring low pressure drop.
Liquid Trough Seal: Some models feature a liquid trough seal structure to ensure complete contact between the filter and frame, preventing unfiltered air bypass.
Technical Parameters (Typical Values)
| Parameter | Description |
|---|---|
| Filtration Efficiency | H13 Grade: 99.95% (0.3μm); H14 Grade: 99.995% (0.3μm) |
| Temperature Resistance Range | Continuous Operating Temperature: 250℃-350℃; Instantaneous Temperature Resistance: 400℃ (depending on filter media and structure) |
| Frame Material | 304/316L stainless steel, thickness 1.0mm-1.5mm |
| Filter Paper Material | Ultra-fine glass fiber, diameter 0.5μm-2μm |
| Separators | Aluminum foil or special hot melt adhesive |
| Sealing Method | Liquid trough seal or mechanical compression seal |
| Dimensions | Customized production, common specifications: 610×610×292mm, 1220×610×292mm, etc. |
| Rated Air Volume | 500-5000m³/h (depending on size and pressure drop) |
| Initial Pressure Drop | ≤250Pa (@ rated air volume) |
| Service Life | 8000-12000 hours (depending on dust concentration and operating environment) |
Application AreasIndustrial High-Temperature Dust Removal
Exhaust gas filtration for equipment such as coating machines, ovens, tunnel furnaces, and drying rooms to prevent dust emissions and environmental pollution.
Air purification in drying workshops for new energy battery production to ensure electrode materials are free from particle contamination.
Cleanroom Terminal Filtration
Used as end-stage high-efficiency filters in Class 100 to Class 10,000 cleanrooms in industries such as semiconductors, optoelectronics, and biopharmaceuticals.
Special Environment Protection
Filtration of radioactive particles in fields such as nuclear industry and aerospace, requiring corrosion-resistant and high-temperature resistant designs.
High-temperature gas purification in industries such as chemicals and food processing to ensure product quality and production safety.
Selection RecommendationsTemperature Matching
Confirm the actual operating temperature and select filter media with matching temperature resistance grades (such as 350℃ temperature-resistant filter paper or PTFE membrane filter paper).
Reserve a safety margin for instantaneous high-temperature scenarios to avoid filter media aging or damage.
Filtration Efficiency Requirements
For general industrial dust removal: H13 grade is sufficient; for high-cleanliness scenarios (such as semiconductors): prioritize H14 grade.
Select compliant products based on specific industry standards (such as EN1822, ISO 29463).
Structure and Installation
Liquid trough seal: Suitable for scenarios with extremely high leakage rate requirements (such as operating rooms, laboratories).
Non-spacer design: Suitable for scenarios with limited space or low pressure drop requirements.
Frame type: Select flangeless, single-flange, or double-flange structures based on installation space.
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