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Seals and Septras - ECH Scientific Limited

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Seals and Septras
For Laboratory Applications
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Seals and Septras
Our premium seals and septa are designed to provide reliable, leak-proof closures for chromatography vials and sample containers. Engineered for chemical resistance and compatibility with a wide range of solvents and temperatures, they are ideal for demanding laboratory environments.

We offer a variety of cap types including crimp caps, screw caps, and snap caps, each available with different septa materials such as:

  • PTFE/Silicone: Excellent chemical resistance and resealability
  • PTFE/Butyl: Low extractables and good solvent compatibility
  • High-Temperature Silicone: Ideal for applications involving elevated temperatures

Available in multiple sizes and colors, our seals and septa are compatible with major vial brands and suited for both manual and robotic handling.
Blue septas Ø 16 mm image
Packaging size 10 piece

Outer diameter Ø 16 mm
o-ring image
Seals and Septras
Packaging size 1 piece

Material: Silicone
o-ring image
Seals and Septras
Packaging size 1 piece

Material: Silicone
sealing ring image
Packaging size 1 piece

Temperature resistant from −200 to +250 °C

Material: Silicon, PTFE
Thread: GL14
Outer diameter: Ø 12 mm
Inner diameter: Ø 6 mm
sealing ring image
Packaging size 1 piece

Temperature resistant from −200 to +250 °C

Material: Silicon, PTFE
Thread: GL18
Outer diameter: Ø 16 mm
Inner diameter: Ø 8 mm
sealing ring image
Packaging size 1 piece

Temperature resistant from −200 to +250 °C

Material: Silicon, PTFE
Thread: GL45
Outer diameter: Ø 42 mm
Inner diameter: Ø 32 mm
PTFE sealing image
Packaging size 1 piece

Temperature resistant from −200 to +260 °C

Material: PTFE
Outer diameter: Ø 5 mm
Inner diameter: Ø 1 mm
Height: 1 mm
White septas 12mm image
Packaging size 50 piece

Outer diameter Ø 12 mm
Sealing ring image
Packaging size 1 piece

Temperature resistant from −200 to +250 °C

Material: Silicon, PTFE
Thread: GL25
Outer diameter: Ø 22 mm
Inner diameter: Ø 12 mm
Sealing ring image
Packaging size 1 piece

Temperature resistant from −200 to +250 °C

Material: Silicon, PTFE
Thread: GL25
Outer diameter: Ø 22 mm
Inner diameter: Ø 10 mm
o-ring image
Seals and Septras
Packaging size 1 piece

PFA-coated
Notice:

1. The appearance and specifications of our products may change slightly as we continually improve our designs and technology.

2. Submitting an inquiry via our B2B portal is completely free of charge for you.

3. By submitting an inquiry for a free quote, no purchase agreement or entitlement to delivery is established. A binding contract is only concluded once we have created an official offer and confirmed acceptance of that offer with an order confirmation.

4. For inquiries and orders placed through our B2B portal, you are granted a 14-day right of withdrawal starting from the date of order. Therefore, we reserve the right to delay delivery until the withdrawal period has expired.

5. Your withdrawal must be submitted in writing via email, contact form, or by phone.
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