Customized Sintered Filters

Leave Your Message
Products Categories
Featured Products
Plastic Pneumatic Muffler

Plastic Pneumatic Muffler
Sintered metal powder filter cartridge

Sintered metal powder filter cartridge
PE perfume stick

PE perfume stick
filtered pipet tips

filtered pipet tips
polyethylene membrane filter

polyethylene membrane filter
PE Perfume Sticks

PE Perfume Sticks
Comprehensive Introduction to Titanium Rod Filter Elements

Comprehensive Introduction to Titanium Rod Filt...
High-Strength Sintered Mesh Filter for Precise Filtration

High-Strength Sintered Mesh Filter for Precise ...
Sintered Stainless Steel Filter

Sintered Stainless Steel Filter
Precision Sintered Powder Filter for Micro-Particle Removal

Precision Sintered Powder Filter for Micro-Part...
0102030405
self-sealing-filter-1-1.jpg
self-sealing-filter-2-1.jpg
self-sealing-filter-3-1.jpg
self-sealing-filter-4-1.jpg

High-Efficiency Self-Sealing Filters for Industrial Filtration Needs – Quality Products by China Suppliers & Factory

Introducing our high-performance self-sealing filter, expertly crafted in China from ultra-high molecular weight polyethylene (UHMW-PE) or advanced composite polymer materials. This innovative filtration element boasts exceptional hydrophobic properties and a unique self-sealing mechanism. When dry, it facilitates the free passage of gases; however, upon contact with liquids, its micropores rapidly close, creating a reliable barrier that prevents liquid spillage and aerosol contamination. Our filters are ideal for various applications across medical, laboratory, and environmental protection sectors. By choosing our products, you can significantly reduce the risk of cross-contamination and enhance operational safety. As a leading supplier and factory in the filtration industry, we are committed to delivering quality and reliability to our customers

    Message

    AI Helps Write
    Send
    Product Details

    ARTERIAL BLOOD COLLECTION DEVICE SELF-SEALING FILTER

    In the arterial blood collection process, the filter source stop spill cartridge can be used with the arterial blood collection needle to simplify the blood collection process, quickly isolate the air and prevent the exchange of gas between blood and air.

    ESR TEST TUBE SELF-SEALING FILTER

    Blood sedimentation (ESR) is a routine clinical testing. In clinical practice, disposable hematocrit tubes are used to measure the distance of red blood cell decline over a period of time as a basis for diagnosis of various diseases. The our factory cartridge makes the ESR test more convenient. The principle of hematocrit test: The filter element is placed at the "0" scale of the hematocrit tube. When the cartridge is pressed down, the cartridge is free of water and air, allowing the blood to move up. Once it touches the blood, the cartridge will produce a self-sealing effect and the blood will no longer move up. The cartridge is left in place and the degree of blood cell drop is observed.

    INFUSION SET SELF-SEALING FILTER

    Intravenous infusion is a widely used method of drug delivery in clinical practice, and it is necessary to ensure that no air is retained in the wall of the infusion set. Conventional infusion set venting is tedious and time-consuming, and the drug often spills out and causes pollution on the ground. Exposure to air (eg: antibiotics) may cause problems such as increased bacterial resistance. The our factory Self-sealing filter can greatly simplify the venting operation by cooperating with the infuser, and the one-time venting success rate is close to 100%, and can effectively prevent the drug. The success rate of one-time venting is close to 100%, and it can effectively prevent the spilling of medicine.

    CATHETER SELF-SEALING FILTER

    The our factory Self-sealing filter works with the indwelling needle and the indwelling needle can protect the patient's blood vessels, reduce the pain of vascular puncture, and improve the efficiency of the medical staff.

    DISPOSABLE DRAINAGE BAG SELF-SEALING FILTER

    Disposable Drainage Bag Stop Spill Valves are widely used in hospitals for waste fluid handling systems. our factory disposable drainage bag stop core allows air to escape freely through the waste fluid collection bag. Once it comes into contact with the liquid, the core will produce a self-sealing effect, effectively stopping the liquid from spilling out and preventing the liquid from contaminating the instrument and the environment.

    Parameter of self sealing filter

    Parameters Typical Specifications Application Scenarios
    Material Ultra High Molecular Weight Polyethylene (UHMW-PE), Fluorinated Ethylene Propylene, Polydimethylsiloxane, etc. General
    Working Pressure >50 kPa (some models >70 kPa) Medical Waste Liquid Handling, Drainage Bag
    Filtration Accuracy 0.2-15 μm (customizable) Aerosol Barrier, Liquid Filtration
    Diameter/Thickness Diameter 3.6-20 mm, Thickness 4.5-30 mm (Example: CC36-45 type diameter 3.6 mm, thickness 4.5 mm) Infusion set, indwelling needle, hemosorbent tube
    Chemical Resistance Resistant to strong acids, strong bases, organic solvents (e.g., chloroform, methanol) Chemical Filtration, Laboratory Analysis
    Biocompatibility Medical compliant, no CNase/DNase contamination Medical devices (e.g., indwelling needles, blood collection tubes)

    Production process of self sealing filter

    1. Material Preparation: Choose UHMWPE (main raw material) and fluorinated ethylene propylene, polyurethane and other additives, and mix them proportionally.
    2. Mixing and stirring: Mix the main material with cross-linking agent, foaming catalyst and other auxiliaries in the mixing tank for 1-2 hours.
    3. Mold forming: choose the mold according to the shape of the product, fill the material and then mold it at high temperature by molding and sintering machine.
    4. Post-treatment: centrifugal deburring after cooling, visual inspection of appearance (black spots, burrs).
    5. Quality control and packaging: pass bubble uniformity test, pressure test, vacuum packaging.

    Advantages of self sealing filter

    1. Safety: self-sealing effect prevents liquid spillage and reduces the risk of medical infection;
    2. Durability: high pressure resistance (5-10 meters water column), corrosion resistance, long service life;
    3. High precision: uniform distribution of micropores, controllable air permeability, suitable for different filtration needs;
    4. environmental protection: non-toxic materials, can be repeatedly rinsed to reduce medical waste;
    5. Convenience: flexible design to fit a variety of instruments with inner diameter, simplify the operation process.

    Application of self sealing filter

    Fields Applications Examples of Typical Scenarios
    Medical Infuser Venting, Indwelling Needle Spill Prevention, Hematocrit Tube Testing, Urine Collector/Drainage Bag Waste Disposal Preventing Antibiotic Spills, Blood Contamination
    Laboratory Pipette Tips Anti-Contamination, Solid-Liquid Phase Separation, Sample Handling Avoiding Aerosol Contamination in PCR Experiments
    Industrial environmental protection Water treatment, chemical filtration, waste purification High-flow sewage treatment, corrosion-resistant gas filtration
    Food/Pharmaceutical Liquid decolorization, reverse osmosis pretreatment, aseptic packaging Mineral water purification, oral liquid filtration

    Note

    - Customization service: Support personalization of different sizes, pore diameters and materials (e.g. PTFE, titanium metal).
    - Quality certification: The whole production is done in clean plant, which meets the ISO medical standard, and some models have passed the FDA certification.

    For more detailed parameters or customized solutions, please contact us for technical support.

    Frequently Asked Questions (FAQ)

    How does a self-sealing filter prevent liquid spillage?
    The filter is designed to let air pass through freely. However, as soon as it makes contact with liquid, the material produces an instant self-sealing effect, completely blocking the liquid from passing or spilling out.
    What materials are used to manufacture these self-sealing filters?
    They are primarily made from Ultra High Molecular Weight Polyethylene (UHMW-PE), Fluorinated Ethylene Propylene, and Polydimethylsiloxane, depending on the specific application requirements.
    Can the size and filtration accuracy of the filters be customized?
    Yes. We support custom designs for various dimensions (diameter/thickness) and filtration accuracies ranging from 0.2 to 15 μm, as well as alternative materials like PTFE and titanium metal.
    Are these filters safe for medical applications?
    Absolutely. The production process is conducted in cleanroom facilities that meet strict ISO medical standards, ensuring the filters are biocompatible and free of CNase/DNase contamination. Some models are also FDA certified.
    How do self-sealing filters benefit intravenous infusion sets?
    They simplify the venting process, achieving a one-time venting success rate of nearly 100%. This prevents medicine from spilling, reduces contamination risks, and saves time for medical staff.