11mm Snap Top Caps with Septa
    • snap caps with septa
    • 11mm samp cap size
    • 11mm snap top caps
    • ptfe silicone septa
    • 11mm snap cap package
    • 11mm snap caps for 11mm vials
    snap caps with septa

    11mm Snap Top Caps with Septa

    Suitable for: 11mm Snap Ring Vials
    Caps Material: PE
    Septa Material: PTFE / Silicone
    Septa Size: 11*1mm
    Cap Features: 6mm Centre Hole or Closed Top
    Color: Blue, Red, Nature or Customized
    product description


    11mm snap top vial cap, silicone/PTFE septa

    Caps are made of high quality polypropylene, Caps have the profile of a crimp or snap closure for compatibility with robotic autosamplers, Pre-assembled septa reduces the chance of contamination during sample preparation, while saving sample preparation time in the lab.

    Snap caps provide a secure seal, minimizing evaporation even with volatile samples, The audible click ensures that a secure seal has been formed and the cap is properly applied.Snap caps have septa pre-assembled, Snap caps are compatible with Aijiren Vials and other snap-ring style vials

    Snap ring closures N11 should only be used in HPLC, as the punctual compacting pressure of the septum against the vial rim by the four pins in the cap does not achieve the same level of tightness as the evenly applied pressure through a screw thread or by crimping.


    PTFE/Silicone Septa:

    High quality, pure silicone is laminated to PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures.

    PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical. Works well for applications where ease of needle penetration is important.

    Septa-silica gel has strong repetitive sealability, and it can maintain good close performance after multiple injections; PTFE is a material with better chemical conditions at present, and it can withstand strong acids and alkalis. The two materials After compounding, the bottle can be used for various laboratory purposes such as sealed sampling, chemical storage and so on. 

    PTFE/Silicone/PTFE Septa:


    A layer of PTFE is laminated to each side of high purity, medium durometer silicone to form a septum that is the most resistant to coring while maintaining good resealing characteristics. The PTFE/Silicone/PTFE septum is recommended for the most critical applications such as ultra trace analysis or where there is a longer time between injections or for internal standard methods. PTFE/Silicone/PTFE septa provide superior performance with any autosampler employing a large diameter, blunt tip needle.

    Part No.



    White PTFE/Red Silicone Septa, Φ11*1mm


    Red PTFE/White Silicone Septa, Φ11*1mm


    Red PTFE/White Silicone/Red PTFE Septa, Φ11*1mm


    Blue PTFE/White Silicone Septa, Φ11*1mm


    Pre-slit White PTFE/Red Silicone Septa, Φ11*1mm


    Pre-slit Red PTFE/White Silicone Septa, Φ11*1mm


    Pre-slit Blue PTFE/White Silicone Septa, Φ11*1mm


    11mm Natural Snap-top PE Cap, 6mm Centre Hole


    11mm Blue Snap-top PE Cap, 6mm Centre Hole


    11mm Red Snap-top PE Cap, 6mm Centre Hole


    White PTFE/Red Silicone Septa, 11mm Natural Snap-top PE Cap, 6mm Centre Hole


    Red PTFE/White Silicone Septa, 11mm Natural Snap-top PE Cap, 6mm Centre Hole


    Red PTFE/White Silicone Septa/Red PTFE Septa, 11mm Natural Snap-top PE Cap, 6mm Centre Hole


    Blue PTFE/White Silicone Septa, 11mm Natural Snap-top PE Cap, 6mm Centre Hole


    Pre-slit White PTFE/Red Silicone Septa, 11mm Natural Snap-top PE Cap, 6mm Centre Hole

    Pre-slit or Not

    Chromatography septas can be pre-slit or not and must be considered by evaluating a few factors. A pre-slit septum is an ideal choice in applications requiring 20% or more of the sample injection each time from the vial so that suction is avoided.

    The slit allows ambient gas to equalize the gas in the vial so that a vacuum is not created in the vial from the tight seal around the needle. If coring or clogging from a narrow needle or needle deflection from highly durable septa material is a concern, then choosing a pre-slit septum is a better choice.

    The non-pre-slit septas help to reduce carryover from vial to vial because the resealing characteristics of the septum act as a squeegee to wipe solution from the outside of the needle. Typically, a non-slit septum exhibits resealing capabilities for a limited number of needle punctures but for long-term storage in the vial, using a new non-punctured septum is best practice.

    A PTFE/Silicone with slitted septum allows for easier needle penetration as well as to release the vacuum that forms when a large volume of sample is withdrawn from a vial. This septum provides chromatographic characteristics similar to that of a septum without a slit except that the ability to withstand exposure to aggressive solvents is slightly lessened. 

    Company Introduction

    1. Founded in 2007, Zhejiang Aijiren, Inc. specialized in chromatography consumables, such as autosampler vial for HPLC, headspace vial, GC vials, micro inserts, septa and caps, syringe filter, etc, covers more than 10000 square meters, and has clean workshop more than 2000 square meters. 100, 000 class cleaning room;  

    2. 15 years export experience, exprot to more than 70 countries, 2000+ customs around the world; 

    3. More than 10 years experience for automatic analytica technique

    4. Aijiren has own R&D Center and Quality Controll Center to keep products in high quality.

    5. All materials are produced at 100,000 grade clean room.
    6. Passed ISO9001:2015  quality management system certification, RoHS compliance can also be provided.

    How to confirm product quality before placing orders?
    After production, all articles are delivered to QC center, only qualified products can be release to the next procedure.
    Meanwhile, you are welcome to ask for samples for testing.
    How to star order or make payment?
    Proforma Invoice will be sent first after confirmation or order together with our bank infomations.
    Pay by T/T, Westren Union or Alipay.
    What is the charge standard about the Samples?
    1) For our first cooperation, free samples will be provide buyer afford the shipping cost.
    2) For our old customers, we will send free samples, even though new design samples, when have stocks.
    3) Samples delivery date is 24 to 48 hours, if have stocks. Customer design is about 3-7 days.
    Can you provide OEM service?
    Yes, we had already do OEM service for more than 4 world famous Brand in chromatography area.
    What is the MOQ?
    For vials, caps and syringe filters MOQ is 1pack(100pcs), for hand crimper/decrimper MOQ is 1pack(1pc).
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