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Air vent filter housing product overview

The 304 stainless steel quick fit clamp type sterile filtration respirator is a hygiene grade gas filtration device designed specifically for industries such as pharmaceuticals and chemicals! This setting is mainly installed on the top of sealed containers such as storage tanks and buffer tanks. It uses a built-in tight filter element to draw in filtered sterile air during liquid discharge or cooling in the container, preventing vacuum deformation inside the container! Simultaneously discharge air and maintain pressure balance inside and outside the container during heating or liquid injection;

This respirator adopts a quick installation clamp connection format , making installation and maintenance simple and fast, and can be completed, destroyed, and assembled without the need for special tools. The outer shell is made of 304 or 316L stainless steel, and the internal filter element can be made of materials with different filtration accuracies such as polypropylene (PP) and polytetrafluoroethylene (PTFE) according to needs;

Air vent filter housing Product Structure

The 304 stainless steel quick release clamp type sterile filtration respirator is composed of multiple precision components working together, each of which plays a crucial role:

- Shell components: The respirator shell is made of food grade 304 or 316L stainless steel , with a wall thickness of usually 2-3mm, and has good corrosion resistance and mechanical strength! The inner and outer surfaces of the shell have undergone mirror polishing treatment, and some high demand versions even achieve Ra ≤ 0.4 μ m. This treatment can effectively prevent material residue and is suitable for GMP standard requirements.

- Filter unit: This is the focal part of the respirator, consisting of foldable microporous filter membrane ; The filter material can be selected according to application needs. Polypropylene (PP) filter has excellent chemical compatibility, while polytetrafluoroethylene (PTFE) filter has stronger hydrophobicity and chemical resistance;

-Quick installation clamp system: The respirator uses quick installation clamps suitable for the ISO 2852/DIN 32676 method, which can be installed or disassembled in 1 minute without the need for tools; The clamp is made of 304 stainless steel and equipped with food grade silicone or EPDM sealing rings, with a temperature resistance range of -20 ℃ to 180 ℃, ensuring complete sealing at the connection;

- Pressure Balance Device (optional): The department model is equipped with a pressure balance system composed of stainless steel springs and valve plates, which can be customized with open pressure values (positive pressure 0.01-0.1MPa). By adjusting the spring preload, the breathing pressure range can be accurately controlled to ensure stable container pressure.

- Auxiliary components: including optional accessories such as rain cap (to prevent rainwater backflow), pressure difference indicator (to display the pressure difference before and after the filter element, and remind to replace the filter element when the pressure difference is ≥ 0.05MPa), further improving the functionality and safety of the equipment.

Air vent filter housing Production Process

The manufacturing process of the 304 stainless steel quick fit clamp type sterile filtration respirator follows dignified quality standards and hygiene regulations, and the main production steps include:

• Material selection and testing : Strictly screen the raw materials, ensure that the stainless steel plate meets the GB/T3280 standard, and verify the material certificate! The filter material needs to undergo bubble point testing and integrity testing to ensure an average static porosity;
• Shell Forming and Welding : Detailed cutting, rounding, and welding of stainless steel plates are performed using CNC machine tools ! The welding process adopts argon arc welding (TIG) technology to ensure that the weld seam is evenly flat and free of dead corners!
• Contour polishing treatment : The inner and outer contours of the shell undergo multiple polishing processes, from rough polishing to fine polishing, ultimately achieving a mirror effect (Ra ≤ 0.8 μ m or less). High specification products will also undergo electrolytic polishing (Ra ≤ 0.6 μ m) to form a smooth and corrosion-resistant surface that meets hygiene requirements!
• Filter cartridge production and testing : Fold the filter membrane into specific process requirements and increase the effective filtration area in a clean room environment. Then encapsulate the filter membrane in a polypropylene or stainless steel end cap and seal the edges using food grade adhesive or hot melt technology.
• Component assembly : Install the filter element into the housing, seal the ring, and clamp the connector in the clean workshop; During the assembly process, prevent direct contact with internal components by hand and use sterile gloves for manipulation;
• Final testing and packaging : Conduct comprehensive quality inspection on the finished product, including surface testing, size verification, pressure testing, and performance testing! Each product comes with a testing report and a certificate of conformity;

What are the advantages air vent filter housing?

Compared to traditional respirators, 304 stainless steel quick fit clamp sterile filtration respirators have several prominent advantages:

-Exciting filtration performance: Adopting foldable microporous membrane technology, with a filtration accuracy of up to 0.01 μ m and a particle removal efficiency of 99.99%, fully complying with GMP sterile production requirements! The hydrophobic filter design can effectively prevent moisture infiltration and ensure good ventilation even in humid environments!

- Hygiene grade design and easy maintenance : Mirror polished contour (Ra ≤ 0.8 μ m) and quick installation clamp continuous design make the setting less prone to material accumulation, easy to purify and disinfect! The process of filter replacement is simple and fast, and can be completed without the need for professional tools, greatly reducing downtime and maintenance costs!

-Exciting durability and economy: The 304/316L stainless steel structure provides excellent corrosion resistance and mechanical strength, with a long service life! Filter cartridges can usually be used for 2-3 years, and after regeneration, they can be extended to 4-6 years, significantly reducing long-term operating costs!

-Stability guarantee effectiveness: A complete pressure balance mechanism can effectively prevent the risk of tank vacuum or overpressure! The department model integrates flame retardant function , adopting a dual flame retardant core interlocking design, which can effectively hinder the spread of flames, prevent explosions caused by backfire, and is particularly suitable for flammable and explosive environments;

- Wide application adaptability : Provides multiple specifications (DN15-DN80), filter material (PP, PTFE, etc.), and accuracy level (0.01-60 μ m) selection, supporting customized production; Capable of meeting the special needs of different industries, from food and beverage to pharmaceuticals and chemicals;

How to maintain air vent filter housing?

Proper maintenance and adjustment are crucial for ensuring the natural function and prolonging the service life of respirators

• Daily monitoring and testing: It is recommended to conduct daily inspections of the surface of the respirator and check for signs of mechanical damage or corrosion. Monitor the pressure difference before and after the filter element through a differential pressure gauge. When the pressure difference leads by 0.05MPa, explain that the filter element can be clogged and needs to be purified or replaced!
• Regular cleaning and disinfection: Usually, cleaning is conducted once a month ; Rinse the inside and outside of the shell with clean water or neutral detergent. For stubborn stains, soak them in weak acidic detergent and gently scrub to prevent hard objects from scratching the contours;
• Filter replacement procedure: When the pressure difference of the filter element is continuously high or reaches the application time limit (usually 2-3 years), it should be replaced! Before replacement, ensure that the system has been depressurized, and damage the clamps, end caps, and old filter cartridges in sequence!
• Seasonal maintenance of center of gravity: During high temperature and high humidity seasons, it is necessary to increase the frequency of testing to prevent rusting of stainless steel contours. When not used for a long time, it should be completely pure and the internal water should be drained, the inlet and outlet valves should be closed, and food grade rust proof oil should be applied to protect the surface!
• Recording and tracing: Maintain complete building maintenance data, record detailed information on each inspection, cleaning, and replacement, date of collection, personnel manipulation, identified problems, and processing steps; This helps to track device status and plan for preventive maintenance!

Wht are the application of air vent filter housing?

The 304 stainless steel quick installation clamp type sterile filtration respirator has been widely used in multiple industries due to its excellent performance:

-Pharmaceutical and Bioengineering: In the pharmaceutical industry, this type of respirator is mainly used for ventilation protection in fermentation tanks, mixing tanks, and other settings; They can ensure that the air inside the tank is sterile, prevent microbial contamination, and meet the requirements of GMP for aseptic production processes!

-Food and beverage industry: widely used for tank ventilation in brewing, seasoning, and other fields! On beer fermentation tanks, wine aging tanks, and respirators, it can prevent bacterial contamination while allowing for normal release of carbon dioxide!

-Chemical and petroleum industry: Used for storing organic solvents, acid and alkali solutions in storage tanks. Respiratory protection and stainless steel material corrosion resistance ensure long-term static operation in harsh chemical environments! In flammable and explosive environments, additional models with flame retardant effects can be adopted to prevent explosions caused by backfire and ensure factory stability.

-Water management and environmental protection industry: In reverse osmosis systems, ultra pure water storage tanks, wastewater treatment systems, and respirators, external pollutants can be prevented from entering the system to maintain water purity! At the same time, it can balance the pressure inside and outside the pool, prevent the spread of odors, and achieve remarkable environmental benefits.

-Cosmetics and electronics industry: Raw material storage tanks for cosmetics production require respirators to prevent product oxidation and contamination! The preparation of ultrapure water and chemical supply in the electronics industry also relies on respirators to maintain the purity of process fluids and avoid particle mixing with tightly packed electronic components;

This 304 stainless steel quick fit clamp type sterile filtration respirator integrates efficient filtration, hygienic design, safety and reliability, and easy maintenance, and is a key equipment for ensuring product quality and production safety in modern process industries!