Supply and Exhaust Module
Your Professional Supply and Exhaust Module Supplier
Founded in 2016, Jiangsu Grandfort Purification Equipment Co., Ltd. is a China-based manufacturer specializing in cleanroom and purification equipment, located in Rugao, Nantong, Jiangsu Province. The company is supported by a professional technical team focused on product development and manufacturing for industries such as healthcare, food, and semiconductors. Its 8,000-square-meter factory is equipped with standardized production capabilities and advanced machinery, including laser cutting machines, CNC punching and bending equipment, and quality testing instruments. With structured production processes and in-house installation and testing services, the company ensures reliable manufacturing capacity and consistent product quality for global customers.
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Why choose us
Sales Market
Our product sales network covers China's Tier 1 and Tier 2 cities. Furthermore, we have cultivated a high-quality client base across the North, South, Central, and East China regions.
Our Certifications
We are ISO 9001:2015 quality management standards and ISO 14001:2015 environmental management standards.
Advanced technology
The company has developed multiple patented technologies and is supported by an experienced R&D team, ensuring reliable product development and engineering capability.
Quality Assurance
We have 100% quality guarantee to customers. Our products are manufactured or executed to very high standards, using the finest materials and manufacturing processes.
HEPA Filter Housing
HEPA filter housing refers to the structure that holds and seals the HEPA filter element within an HVAC or air purification system. It ensures that contaminated air is forced through the filter media, preventing air bypass and maintaining filtration efficiency.The housing is typically made of robust materials such as stainless steel or powder-coated aluminum to withstand high-pressure environments and potential corrosion.
|
Model |
Dimensions (mm) |
Airflow (m³/h) |
Duct Size (mm) |
Filter Size (mm) |
|
GFHH-476×476×250-SS/SP/AL |
476×476×250 |
500 |
250×250 |
412×412×95 |
|
GFHH-695×695×250-SS/SP/AL |
695×695×250 |
1000 |
320×320 |
613×613×95 |
|
GFHH-822×695×250-SS/SP/AL |
822×695×250 |
1500 |
320×320 |
758×613×95 |
|
GFHH-1090×695×250-SS/SP/AL |
1090×695×250 |
2000 |
400×320 |
613×1026×95 |
Airtight Sealing System
A high-quality sealing mechanism is critical. Even minor leaks can compromise a HEPA system’s performance. Common sealing methods include gasketed doors, knife-edge seals, and gel-seal channels for enhanced protection.
Durable Construction Materials
Housing materials must be resistant to corrosion, wear, and chemicals—especially in cleanroom environments. Stainless steel and aluminum alloys are commonly used for their durability and cleanability.
Easy Access for Maintenance
HEPA housings should allow safe and convenient filter replacements. Features like hinged doors or bag-in/bag-out (BIBO) systems improve serviceability without risking contamination.
Flexible Mounting Options
From ceiling-mounted units to wall or duct installations, housing must adapt to site constraints. Modular designs allow for scalable, multi-stage filtration setups.
Type of HEPA Filter Housing
Side Access Flatbank Prefilter Housings
Designed for use with air handling units or other side access equipment.
Bag-in/Bag-out (BIBO) Housings
Used in industries dealing with hazardous materials, enabling safe filter changeouts without exposing personnel to contaminants.
V-bank Housings
Utilize V-shaped filter arrangements to maximize filter surface area and minimize pressure drop.
Applications of HEPA Filter Housing
Pharmaceutical and Biotech
Cleanrooms require ISO and GMP-compliant systems to eliminate airborne contamination.
01
Healthcare Facilities
Hospitals use HEPA housings in operating rooms and isolation areas to prevent pathogen spread.
02
Semiconductor Manufacturing
Dust-free environments are essential for producing high-precision electronics.
03
Food and Beverage
Stainless steel housings help maintain hygiene and protect product integrity.
04
Hazardous Waste and Nuclear
Safe filter change-out options are vital in dangerous or radioactive zones.
05
Housing structure
Typically constructed from anodized aluminum or stainless steel, the housing forms the protective shell and mounting framework. YOUTH’s housings use seam-welded aluminum that provides excellent strength-to-weight ratio while minimizing particle generation.
Filter sealing mechanism
This creates an airtight seal between the filter and housing to prevent bypass leakage. The gel seal design used in many modern HEPA terminal diffusers is particularly effective.
Filter media
The HEPA filter itself comes in various efficiency ratings. While H13 (99.95% efficient) is common for many applications, H14 (99.995%) might be required for more stringent environments.
Diffuser grille
Controls airflow pattern and velocity at the room-facing side. These can be perforated screens, adjustable louvers, or specialized designs for specific airflow patterns.
Connection ports
Includes duct connection collars, pressure differential ports, and sometimes sampling ports for testing.
Design and Construction of HEPA Filter Housing
One-Piece Welded Design
Many HEPA filter housings are constructed using a one-piece welded design. This approach enhances the structural integrity of the housing, reducing the risk of air leaks at the seams.
Modular Design
Some housings feature a modular design, allowing for easy installation and maintenance. Modular components can be replaced or upgraded as needed, extending the lifespan of the housing and reducing long-term costs.
Filter Access Design
The housing is designed to provide easy access to the HEPA filter for installation, replacement, and maintenance. This may include features such as hinged doors, side access panels, or bag-in/bag-out (BIBO) systems for safe filter replacement in hazardous environments.
Manufacturing Processes of HEPA Filter Housing
Cutting and Shaping
The housing material is cut and shaped according to the design specifications. This may involve laser cutting, CNC machining, or other precision cutting techniques to ensure accurate dimensions and smooth edges.
Welding and Assembly
The cut components are then welded or assembled together to form the complete housing. Welding is performed by skilled technicians to ensure strong, leak-free connections.
Surface Treatment
The housing may undergo surface treatment processes such as powder coating or anodizing to enhance its corrosion resistance and aesthetic appearance. These treatments also provide a smooth surface that is easy to clean and maintain.
Quality Control
Throughout the manufacturing process, rigorous quality control measures are implemented to ensure that the housing meets the required standards. This includes dimensional checks, leak tests, and visual inspections to identify any defects or imperfections.
Required airflow volume and pressure rating
Level of filtration (HEPA vs. ULPA)
Space constraints and mounting configuration
Resistance to cleaning agents or chemical exposure
Ease of filter access and replacement
Compliance with ISO, GMP, or FDA standards
Customization Options
Manufacturers may offer customization options to meet specific application requirements. This may include different sizes, shapes, and configurations of the housing, as well as the integration of additional components such as pre-filters or HEGA filters.
Installation and Long-Term Maintenance
Proper Duct Connection
Ensure all spigot connections are sealed with high-grade, non-outgassing silicone. This prevents unfiltered air from being sucked into the housing via the venture effect.
Regular Validation
Perform a DOP Test at least once every 6 to 12 months. This not only verifies the filter but also checks the integrity of the SS HEPA Housing seals and joints.
Cleaning the Diffuser Plate
The perforated diffuser plate should be removed and cleaned periodically. Our "Tool-Free" or "Quarter-Turn" fasteners make this process easy for janitorial staff, ensuring that air distribution remains uniform and unobstructed.
Certificates
FAQ
As one of the most experienced supply and exhaust module manufacturers and suppliers in China, our products have good reputation in the market. Please rest assured to wholesale high quality supply and exhaust module at competitive price from our factory. Contact us for more details.
Bag in And Bag out Filter, Fan Filter Unit, HEPA Filter Housing