Septa

Septa are essential components in laboratory applications, offering a reliable seal for sample containment and injection systems. These septa are primarily used to ensure the integrity of samples in chromatography and other analytical techniques. PTFE septa, known for their chemical resistance and durability, are among our most popular products.

Lab septa have several advanced features, including high puncture tolerance and excellent resealability, making them ideal for repeated use. The general-purpose septa are designed to provide a secure, contamination-free environment, crucial for accurate and reproducible results.

Our septa are available in a range of sizes and materials to accommodate laboratory needs. Options range from standard to specialized inlet septa, which are suitable for high-temperature applications or aggressive solvents. Many septa also come with accessories such as caps and vials, ensuring complete compatibility and ease of use.

With a wide range of choices, these septa offer versatility and reliability, catering to the diverse requirements of modern laboratories. Whether for routine analysis or specialized research, septa provide the quality and performance needed to achieve precise outcomes.

Also available at Thomas Scientific – lab caps, vials, and stoppers.

Septa

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  • 3 Layer Septa

    Three Layer Septa is made of preconditioned silicone rubber and is 3.81 mm (0.150 in.) thick. The average life of these septa is up to 100 injections with a 26s gauge needle. The maximum operating temperature is 200° C. Preconditioned silicone rubber septa, 3.81 mm (0.15“) thick Average life:...

  • Inlet Septa

    Agilent Technologies

    Agilent now coats each premium 11-mm inlet septa with plasma to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Our premium septa also have a recess on the injection side that guides the syringe needle to the same...

  • Inlet Septa

    Agilent Technologies

    Agilent now coats each premium 11-mm inlet septa with plasma to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Our premium septa also have a recess on the injection side that guides the syringe needle to the same...

  • Inlet Septa

    Agilent Technologies

    Agilent now treats each premium 11 mm inlet septa to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Agilent's premium septa also have a recess on the injection side, to guide the syringe needle to the same point...

  • Septa for screw caps, N 8

    Replacement septa for 8-425 screw caps from MACHEREY-NAGEL PTFE virginal: temperature resistant: –200 °C / +260 °C, very high analytical purity, very hard (but very thin material), no resealability Red Rubber / TEF (FEP): temperature resistant: –40 °C / +110 °C, medium...

  • Headspace Pressure Release Seals

    DWK Life Sciences (Wheaton)

    20 mm crimp closure with liner for headspace vials Score lines allow for internal pressure release Choice of three liner options

  • Inlet Septa

    Agilent Technologies

    Agilent now coats each premium 11-mm inlet septa with plasma to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Our premium septa also have a recess on the injection side that guides the syringe needle to the same...

  • Inlet septa

    Agilent Technologies

    The Agilent Technologies inlet septa is made from strong silicone material and works well even at 35 degree C temperatures. This septa is compatible to use with 5880, 5890, 4890, 6850, 6890, 7890 GC columns. Application: For 5880, 5890, 4890, 6850, 6890, 7890 GCs This product is only available to...

  • Replacement Septa for Mininert® Valves

    Material: Red Silicone Septa L x O.D.: 0.308 in. x 0.125 in. Legal Information Mininert is a registered trademark of Valco Instruments Co. Inc.

  • PTFE/Silicone Septa

    MilliporeSigma

    Providing a reliable and chemically inert barrier for vials, PTFE/Silicone Septa are ideal for use in high-performance lab environments. They offer easy needle penetration, ensuring smooth operations during sample extraction. With their robust construction, these septa mitigate the risk of...

  • Septa, Low Bleed High Temperature

    BTO is Bleed and Temperature Optimized for today's most demanding GC and GC/MS applications. Septa BTO is formulated to extend low-bleed and outstanding mechanical properties or premium GC septa to the highest-temperature applications. 3 mm thick. CenterGuide™ design requires less force for...

  • 33 mm Septa, Interlock, Butyl Gray

    DWK Life Sciences (Wheaton)

    Septa closure with locking flange for open-top caps. Flat stopper; thin flange Cap size: 33 mm Gray Chlorobutyl/50 septa

  • Inlet Septa

    Agilent Technologies

    Agilent's general-purpose septa are made from an enhanced injection-molded silicone rubber material. The septa material, dark red or gray in color, is specified to withstand over 200 automatic injections at an injection port temperature of 350 °C. You can have confidence in your chromatographic...

  • HT Grade BTO Silicone Septa

    Your chromatography analysis does not end with the selection of the GC column. The combination of components selected for your instrument also make an important contribution to successful separations. Choose SGE technology to improve your chromatography.

  • Inlet Septa

    Agilent Technologies

    Inlet septa are used to maintain a leak-free seal under the septum nut in the GC inlet, even after many repeated injections. The dimple in the middle of the septum guides the syringe needle through the inlet into the inlet liner to minimize damage to the needle and to ensure injection consistency....

  • Inlet Septa

    Agilent Technologies

    Inlet septa are used to maintain a leak-free seal under the septum nut in the GC inlet, even after many repeated injections. The dimple in the middle of the septum guides the syringe needle through the inlet into the inlet liner to minimize damage to the needle and to ensure injection consistency....

  • Inlet Septa

    Agilent Technologies

    Inlet septa are used to maintain a leak-free seal under the septum nut in the GC inlet, even after many repeated injections. The dimple in the middle of the septum guides the syringe needle through the inlet into the inlet liner to minimize damage to the needle and to ensure injection consistency....

  • MicroLiter 9mm Screwthread Autosampler Vial Septa

    MicroLiter septa for 9mm Screwthread Autosampler Vials are constructed with a wide array of chemical compatibilities to suit a variety of chromatography applications.

  • Inlet Septa

    Agilent Technologies

    Agilent's general-purpose septa are made from an enhanced injection-molded silicone rubber material. The septa material, dark red or gray in color, is specified to withstand over 200 automatic injections at an injection port temperature of 350 °C. You can have confidence in your chromatographic...

  • Inlet septa

    Agilent Technologies

    Inlet septa are used to maintain a leak-free seal under the septum nut in the GC inlet, even after many repeated injections. The dimple in the middle of the septum guides the syringe needle through the inlet into the inlet liner to minimize damage to the needle and to ensure injection consistency....

  • Inlet Septa

    Agilent Technologies

    Agilent now treats each premium 11 mm inlet septa to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Agilent's premium septa also have a recess on the injection side, to guide the syringe needle to the same point...

  • Inlet Septa

    Agilent Technologies

    Agilent now treats each premium 11 mm inlet septa to eliminate sticking in the GC inlet. With our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Agilent's premium septa also have a recess on the injection side, to guide the syringe needle to the same point...

  • Precision Seal red and white rubber septa

    Specially engineered to fit standard taper joints and tubes. Manufactured under white room conditions for extreme cleanliness. Made of a more dense rubber, low extractables and a better fit (50% to 80% on joints) these septa are much less likely to fail in the presence of solvents.

  • Septa for screw caps, N 9

    Replacement septa for 9 mm screw caps from MACHEREY-NAGEL PTFE virginal: temperature resistant: –200 °C / +260 °C, very high analytical purity, very hard (but very thin material), no resealability Red Rubber / TEF (FEP): temperature resistant: –40 °C / +110 °C, medium...

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