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High-quality tube fittings and connecting elements for the life science industry

Large selection of connectors for flexible tubing made of different materials.

[Translate to Englisch:] Verbinder


In the life sciences industry, precision, reliability and material compatibility are crucial. Tube fittings, threaded fittings, plugs and panal mount connectors are essential components that help make complex systems and instruments efficient and safe. These fittings are available in a variety of materials including stainless steel, acetal, polypropylene, nylon and PVDF (Kynar) to meet the specific needs of the life sciences industry. These components are used in a variety of life science applications. This includes biotechnology, clinical diagnostics, pharmaceutical research and the production of medical devices. In biomedical research, precise tubing connectors and threaded connectors are of utmost importance for conducting experiments and transferring samples.

Barbed fittings

Barbed fittings are critical for precisely controlling liquid and gas flow in life science applications. They enable tubes to be connected reliably without leaks occurring. These components are available in different materials to ensure chemical compatibility and sterility. Polypropylene and PVDF, for example, are resistant to aggressive chemicals and are therefore well suited to demanding laboratory environments. For example, barbed fittings are available as straight, angle, reducing and T-fittings.

Threaded fittings, plugs and panel mount fittings

Threaded fittings play an important role in connecting pipes and fittings in life science applications. They ensure a secure seal and enable easy assembly and disassembly. Plugs and panel mounts fittings are used to securely connect through housings and components. In the life sciences industry, they are often found in medical devices, sample containers and analytical devices. These components must be easy to handle, provide a reliable seal and be easy to clean to meet strict hygiene and sterility requirements.

Material selection R-Series

Choosing the right material for tube fittings and connections is crucial.

Please note the disclaimer of liability*

[Translate to Englisch:] Natural Kynar® (NK) - PVDF

Natural Kynar® (NK) - PVDF

  • USP Class VI
  • Lot traceable
  • Temperature range -62°C bis 107°C
  • Pressure 17.9 bar at 21°C.

Kynar (PVDF) material can be autoclaved to 140 °C and meets USP Class VI requirements. Generally, chemically resistant to: most acids, salts, weak bases, halogenated solvents, alcohols, nuclear and UV radiation, oxidants, ozone and deionized water.

[Translate to Englisch:] CrystaVu™ (Polyolefin)

CrystaVu™ (Polyolefin)

  • USP Class VI
  • Lot traceable

A clear transparent alternative to polycarbonate containing no Bisphenol-A (BPA) - will not deform at temperatures to 180 °C. Autoclavable - enhanced characteristics compared with polycarbonate include: superior chemical resistance; no crazing with multiple autoclave cycles plus gamma and EtO Sterilization compatibility - USP Class VI, EU 2002/72/EC.

[Translate to Englisch:] High Density Polyethylene (HDPE)

High Density Polyethylene (HDPE)

  • Lot traceable

HDPE complies with FDA 21 CFR 177.1520 when used unmodified for the manufacture of food contact articles. HDPE has various applications for use in medical products and devices. It has excellent resistance to chemicals, but exhibits lower thermal resistance than other materials. It is a softer material than nylon or polypropylene and much softer than Kynar®.

[Translate to Englisch:] Nylon - Natural (NN) & Medical (MN)

Nylon - Natural (NN) & Medical (MN)

  • Lot traceable
  • Temperature range -45°C to 135°C
  • Pressure 8.6 bar at 21°C

6/6 Nylons exhibit good tensile strength, moderate stiffness and high impact resistance. They're resistant to fuels, lubricants and many chemicals, but vulnerable to attack by phenols, strong acids and oxidizing agents. White Medical Nylon is made from the same resin as Natural Nylon, but has an FDA compliant white colorant added.

[Translate to Englisch:] ADF Polypropylene (PP)

ADF Polypropylene (PP)

  • USP Class VI
  • Lot traceable
  • Temperature range -22°C to 66°C
  • Pressure 8.6 bar to 21°C

Polypropylene meets FDA requirements 21 CFR 177.1520(a)(3)(i) and (c)3.1a. PP material has a Drug Master File listing. It is radiation stable and is resistant to solvents, chemicals, water and other inorganic environments. It resists most strong mineral acids and bases; however, it is subject to attack by oxidizing agents.

[Translate to Englisch:] Black Nylon (BN)

Black Nylon (BN)

  • Lot traceable
  • Temperature range -45°C to 135°C
  • Pressure 10 bar at 21°C
  • Automotive Approvals

Made from 6/6 nylon - exhibits strength, moderate stiffness, high service temperature, high impact resistance and tensile strength. Resistant to fuels, lubricants and many chemicals, but vulnerable to attack by phenols, strong acids and oxidizing agents. Used in fuel line, vacuum systems and general purpose applications: automotive industry approvals.

[Translate to Englisch:] Glass-Filled Black Nylon (GFBN)

Glass-Filled Black Nylon (GFBN)

  • Lot traceable
  • Temperature range -45°C to 135°C
  • Pressure 10 bar at 21°C
  • Heat Deflection Temperature - ASTM D64: 246 °C bei 18,2 bar (264 psi)
  • Automotive Approvals

GFBN is a standard material used in automotive and marine under-the-hood, heater and coolant applications. GFBN's enhanced impact resistance results from inclusion of uniformly dispersed glass fibers that add strength to the resin: automotive industry approvals.

[Translate to Englisch:] Stainless Steel | Edelstahl (SS)

Stainless Steel (SS)

  • Lot traceable

Fittings produced with 316L alloy perform well in high temperature, harsh physical environments. 316L molybdenum bearing stainless steel has excellent impact and chemical resistance, but is less resistant than other types of stainless steel to highly oxidizing acids, such as nitric acid. The material has wide application in pharmaceutical and dairy processing and is used extensively in brewery, beverage and bioprocess industries.

[Translate to Englisch:] White Polypropylene (WP)

White Polypropylene (WP)

  • Temperature range -22°C to 66°C
  • Pressure 8.6 bar at 21°C

White Polypropylene has the same physical and chemical resistance properties as Natural Polypropylene, but is less expensive. WP fittings contain recycled runner material produced during virgin material, Natural Polypropylene production runs. White Polypropylene fittings are manufactured to the same tolerances and quality standards as our Natural Polypropylene fittings - WP is not a USP Class VI material and is not lot traceable.

[Translate to Englisch:] White Nylon (WN)

White Nylon (WN)

  • Temperature range -45°C to 135°C
  • Pressure 8.6 bar at 21°C

White Nylon has the same chemical and physical properties as Natural Nylon. WN fittings contain recycled runner material produced during virgin material, Natural Nylon production runs. White Nylon fittings are manufactured to the same tolerances and quality standards as our Natural Nylon fittings. Lot traceability certificates are not available for White Nylon.

[Translate to Englisch:] Gray Kynar (PVDF)

Gray Kynar (PVDF)

  • Temperature range -62°C to 107°C
  • Pressure 17.9 bar at 21°C.

Gray PVDF fittings exhibit the same physical and chemical resistance properties as Natural Kynar®. PVDF fittings contain recycled runner material produced during virgin material, Natural Kynar® production runs. For applications that do not require lot traceability or a material that meets USP Class VI requirements, PVDF fittings represent an excellent value.

Sterilization stability of materials

Gamma Radiation
Ethylene Oxid
Natural Kynar® (NK) – PVDF
Highly compatible, but will discolor to brownish hue. Physical Properties typically improve.
Compatible to 10 M-Rad dose with little loss of physical properties. Will discolor to light yellow-green hue.
Highly compatible with 100% EtO; may stress crack if sterilized in EtO/ CFC mix, due to molding stresses.
Not recommended. May craze or stress crack due to molding stresses.
Excellent up to 5 M-RAD. Some discoloration may occur at the higher doses. No significant effect on physical properties.
Fair; may stress crack in EtO/CFC mix due to molding stresses.
Poor. Parts may distort due to low heat deflection temperature.
Nylon and Glass Filled Nylon
Physically compatible with commonly used sterilization doses, but may discolor to brownish hue.
Very Good. Some susceptibility to oxidizing agents.
Very Good. Components may swell slightly due to water absorption.

*The data presented in this publication is for reference only. It was compiled primarily from outside sources provided by feedstock materials suppliers and resin manufacturers, and is offered to our customers as a means of comparing the characteristics of resins and materials used by us at the time of publication. The particular conditions of your use and application of our products are beyond our control. Thus, it is imperative that you test our products in your specific application to determine their ultimate suitability. All information is provided without implied or expressed warranty or guarantee by us, or the resin and feedstock manufacturers. We assume no liability with respect to the accuracy or completeness of the information contained herein and none of the information provided constitutes a recommendation or endorsement of any kind by us.



Fittings in our online shop

An overview of the standard fittings with filter options according to size, material, threads, etc. can be found in our online shop.