Choosing the right tubing for your application

Tubing used in laboratories must be carefully selected and fulfil various criteria. What exactly needs to be considered? The choice of a particular laboratory hose depends on the ambient temperature, acid resistance, flushability and pressure resistance. The material of the tubing plays a major role in relation to the transport of fluids such as gases, chemicals, acids, solvents or alkalis. The safety and reliability of the hose in the respective laboratory process are also of high relevance. Careful consideration should therefore be given to which hose is suitable for which application.

The following table provides information on materials, areas of application, suitability and resistance and serves as a selection guide.

Material Field of use Specific Characteristics Resistance
Stainless Steel Biotechnology
Chemistry Laboratory
Pharmaceutical Technology
  • Suitable for applications with extreme temperatures
  • suitable for vacuum applications, as stable and tight
  • Corrosion resistant
  • does not react with most chemicals
  • for transporting gases and vapours, as gases are neither absorbed nor allowed to pass through
High pressure resistance,
Temperature 163 up to 454 °C
EFTE (EthyleneTetrafluorethylene) Biotechnology
Food Industry
Pharmaceutical Technology
  • good chemical resistance to acids, alkalis and solvents
  • for transporting aggressive or corrosive substances without damaging the hoses or causing a chemical reaction
  • good mechanical properties, flexible and resistant
  • sterilisable, autoclavable
Temperature -100 °C up to +150 °C
FEP (Fluorethylene propylene) Chemistry Laboratory
Food and filling Industry
Medical Technology
Pharmaceutical Technology
  • good chemical resistance, resistant to almost all chemically aggressive media
  • UV-stable
  • flame retardant
  • Physiologically safe, free from extractable agents
  • UV-stableNon-adhesive surface, very good sliding characteristics
  • Non-porous, gastight, ideal for aggressive and pure liquids or gases
  • transparent and translucent
  • easy to clean, Can be sterilized in Gamma, ETO, E-Beam and in autoclaves
Temperature -200 °C up to +200 °C
FPM (Fluor-rubber) Analysis Technology
Biotechnology
Chemistry Laboratory
Hygiene applications
Medical Technology
Process Engineering
  • high resistance to hydrocarbons, mineral, vegetable and animal oils, aromatic and chlorinated solvents, many acids, alkalis and oxidising agents
  • mechanically stable
  • high abrasion resistance
  • easy to clean
  • resistant to ageing and weathering
Temperature 18 °C up to 232 °
FS (Fused Silica) Chemical Technology
Micro and Nano-HPLC
Capillary-, GC-, LC- and bioanalytical applications
  • Resistant to many acids, alkalis, solvents and aggressive chemicals
  • high heat resistance
  • low thermal conductivity
  • suitable for use in cleaning systems and filtration
  • optical clarity, therefore used in optical application
Temperature up to 1.000 °C
PA/Nylon (Polyamide) Chemistry Laboratory
Food Industry
Medical Technology
Pharmaceutical Technology
  • high resistance to greases, oils and a wide range of chemicals and solvents
  • high abrasion resistance
  • UV-resistant
  • almost gas-tight
Temperature -40 °C up to +80 °C
PE (Polyethylene) Chemistry Laboratory
Food Industry
Medical Technology
  • high resistance to (non-oxidising) acids, alkalis, salts and many solvents
  • high abrasion resistance
  • dimensionally stable and pressure-resistant
  • very suitable for transporting liquids, air and slightly abrasive materials
  • transparent
Temperature -40 °C up to +95 °C
PEEK (Polyetheretherketon) Gas Chromatography - Mass Spectrometry (GC-MS)
High Performance Liquid Chromatography (HPLC)
  • high resistance to organic solvents, acids, bases and polar compounds
  • chemically inert
  • biocompatible, metal-free, corrosion-proof
  • flexible, brown high-pressure tubing for almost all organic or inorganic liquids
  • alternative for capillary tubing made of titan or stainless steel
Temperature 50 °C up to 250 °C
PFA (Perfluoralkoxyalkan) Chemistry Laboratory
Food Industry
Medical Technology
  • high resistance to alkalis, acids, solvents and gases
  • suitable for almost all solid, liquid and gaseous media
  • ideal for connections under vibrations, usable with a small bending radius, for compensation of thermal expansions, for easy handling of liquids
  • higher polymer purity
  • non-porous surface, therefore ideal for conducting oils, resins and paints
  • smooth surface, very transparent, almost translucent, improved light transmission
  • sterilisable, autoclavable
Temperature -270 °C up to +260 °C
PTFE/Teflon (Polytetrafluorethylene) Biotechnology
Food Industry
Medical Technology
Pharmaceutical Technology
  • high resistance to alkalis, acids, solvents and oxidising agents as well as gases
  • hermetically sealed, preventing gases from escaping
  • low surface energy, therefore extremely resistant to the adhesion of substances
  • not resistant to fluorine compounds and strong reducing agents
  • free of extractable components
  • physiologically harmless
  • Resistant to ageing and UV light
  • biocompatible
  • flexible
  • sterilisable, autoclavable
  • transparent, translucent to milky-white
Temperature -200 °C up to +260 °C
PU (Polyurethane) Chemistry Laboratory
  • particularly suitable for high sub-zero temperatures, as hoses react flexibly to cold
  • high resistance to UV light, ozone, hydrocarbons with aliphatic properties, diluted acids and alkaline solutions
  • can be used with numerous oils and greases
Temperature -50 °C up to +80 °C
PVC (Polyvinylchloride) Chemistry Laboratory
Food Industry
Environmental technology
  • Foodstuffs quality according to the EC Guideline 1935/2004
  • physiologically harmless
  • Resistant to hot water and oil
  • robust and abrasion
  • transparent and UV-stable
  • High resistance to chemicals
Temperature -10 °C up to 60 °C
SEBS (Styrene-Ethylene -Butylene-Styrene) Chemistry Laboratory
Industrietechnik
Medical Technology
Pharmaceutical Technology
  • high resistance to many acids and alkalis as well as polar solutions
  • suitable for transporting liquids and gases
  • resistant to cold and weathering
  • biocompatible
  • easy to clean and sterilise
  • flexible and resistant
Temperature up to 165 °C
Operating pressure of 20 bar, burst pressure of 60 bar
Silicone Chemistry Laboratory
Hygiene Applications
Food Industry
Medical Technology
Pharmaceutical Technology
  • high resistance against weak acids and alkalis
  • not suitable for strong acids and caustic solutions
  • Suitable for food
  • high temperature resistance
  • resistant to ozone, UV and weathering
  • physiologically harmless
  • easy to clean and steam sterilisable
  • flexible, dimensionally stable
  • transparent
  • Autoclavable, ethylene oxide
  • Silicone is highly absorbent, contamination can easily occur
Temperature -60 °C up to 260 °C