China Suppliers Galvanized Steel V-Type H13 HEPA Filter - High Efficiency Factory Manufacturing
Application area
V-type HEPA Filter widely used in high-air-volume applications with stringent requirements for air cleanliness, system stability, and operational costs:
- Large clean rooms: Such as semiconductor factories, LCD panel plants, bio pharmaceutical workshops, and operating rooms.
- Data centers: To supply large volumes of clean, cooled air to server rooms.
- Commercial buildings: Terminal ends of air handling units (AHU) in high-end office buildings and hospitals. Industrial sectors: Painting workshops, food and beverage processing, and precision manufacturing.
Product Introduction
Filter Media Materials:
Separator-Free (Mini-pleat) Technology: A more advanced technology that uses special pleating and curing processes to allow the filter paper itself to maintain its shape, eliminating the need for traditional separators. This further increases the filtration area and reduces resistance.
Frame Function: Provides structural strength to the filter and facilitates installation and sealing. Materials: Laminated Plywood: The most common type; low cost and good strength. Surfaces usually have an anti-corrosion coating.
Aluminum Profile: Lighter, more durable, and offers better fire resistance. Often used in high-standard clean rooms or special environments.
Stainless Steel: Used in bio safety laboratories, pharmaceutical plants, and other applications requiring frequent disinfection and high corrosion resistance.
Plastic (e.g., ABS): Used for some light-duty or special-purpose filters.
Sealant (Gasket Sealant)
Function: Securely seals the filter media pack within the frame to prevent the leakage of unfiltered air (bypass). This is crucial for ensuring filter efficiency.
Materials: Polyurethane Sealant: The most commonly used type; offers good elasticity and adhesion strength. Silicone Sealant: Features a wider temperature resistance range and better aging resistance. Hot-Melt Sealant: Fast curing and environmentally friendly.
Gasket (Sealing Gasket)
Function: Installed between the filter frame and the installation rack to ensure the air tightness of the entire system.
Materials: Polyurethane Foam: The most common type; offers good compression set and resilience. Neoprene Rubber: More durable and offers better aging resistance.
The efficiency of HEPA Filter
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)
Where are V-type HEPA filters primarily used?
They are widely used in high-air-volume systems that require strict air cleanliness, such as semiconductor clean rooms, LCD plants, biopharmaceutical workshops, operating rooms, data centers, and advanced commercial buildings.
What is Separator-Free (Mini-pleat) Technology?
It is an advanced design using special pleating and curing methods that allow the filter paper to maintain its structure without traditional separators. This design maximizes the filtration surface area and minimizes resistance.
What frame materials are available for these filters?
Depending on application requirements, frames are available in Laminated Plywood (cost-effective), Aluminum Profile (lightweight and fire-resistant), Stainless Steel (corrosion-resistant for bio-safety), and ABS Plastic.
How does efficiency affect filter resistance and cost?
Higher efficiency ratings (ranging up to 99.999999%) generally lead to increased airflow resistance and higher costs. Balancing filter efficiency and face velocity is key to achieving optimal economic benefits.
When should a V-type HEPA filter be replaced?
Filters should be replaced when dust accumulation causes airflow resistance to reach an unacceptable level, or if excessive resistance risks releasing captured dust back into the clean airflow.