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RUBBER & SILICONEStandard parts. Custom solutions.

Rigid silicone tubing

Rigid silicone tubing

Rigid silicone tubing is one of the two types of tubing that is available, when we talk about that feature. We offer flexible and rigid silicone tubing, both very popular with our clients because in many cases you need both. For example, laboratories need both types, as do many others. Also, rigid tubing is used for fuel, oil, coolant, hydraulic and many other purposes. Rigid silicone tubing is mostly installed where it has stationary applications, which means that it will stay in place for a long time, while flexible tubing is the choice of those who often move tubing from one place to another.

Rigid tubing has significantly higher hardness than flexible, which is logical, because it is necessary that rigid silicone tubing resist against permanent deformation, and this is only possible with rubber with high hardness. Hardness is expressed in Shore A. Also, the elongation expressed in percent is low, because rigid tubing must retain its basic shape. So when ordering rigid silicone tubing, think carefully about where you will use it and for what purpose.

Tubing is available in many different colors. Customers opt for different colors to make it easier to distinguish tubing, so it is very useful to order multi-color or transparent on the other hand, to have an insight into what is happening inside. In addition to a large number of different colors, rigid silicone tubing is also available in plenty of different sizes. Most customers first check the diameter. Inside diameter suggests how much flow will be through the tubing. Don’t forget to choose the right length, because as we mentioned, elongation is not a feature of rigid tubing, so you have to choose the right size right away.

If you are going to use rigid silicone tubing for contact with food, then choose food grade silicone, and for contact with chemicals choose tubing with thicker walls.

Silicone Tubing Size Catalog

Compare inside diameter, outside diameter and listed wall thickness across silicone tube ranges. Confirm the material grade and application requirements for the selected part.

Food grade silicone tube

Compare Inside Diameter and Outside Diameter in mm, together with the listed Thickness and Colour. The cross-section drawing identifies the bore and outside diameter; confirm the selected tube material and service requirements.

Dimension guide
Tube cross section — Outside Diameter and Inside Diameter
Profile reference. Use the dimension letters and units in the selected table and confirm the part drawing.
Product appearance
Food grade silicone tube — product view
Illustrative product appearance. Refer to the selected row and part drawing for dimensions.
Part No.Inside DiameterOutside DiameterThicknessColour
FST0.5*2.10.52.10.8Transparent
FST0.8*40.841.6Transparent
FST1*3131Transparent
FST1.6*4.81.64.81.6Transparent
FST2*3230.5Transparent
FST2*4241Transparent
FST2.4*42.440.8Transparent
FST2.4*5.62.45.61.6Transparent
FST2.5*42.540.75Transparent
FST3*4340.5Transparent
FST3*5351Transparent
FST3*6361.5Transparent
FST3*8382.5Transparent
FST3.2*6.43.26.41.6Transparent
FST4*5450.5Transparent

Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.

Discuss Your Requirements

Product specifications

Product form
Hollow elastomer tubing for a fitted line or sleeve
Material
Silicone. Specify the compound grade for the selected service.
Application focus
Laboratory connections and food-processing equipment. Size the part against the selected assembly.
Dimensions to confirm
Inside diameter, outside diameter, wall thickness and cut length. Match these to laboratory connections.
Stiffness
Define the allowable deformation and hardness; a rigid or hard description alone is not a numerical material specification.
Contact conditions
Fuel, lubricating oil, hydraulic fluid and food ingredients: define concentration, temperature and contact time, then check compatibility with the chosen compound.
Exposure to evaluate
Oil splash. Validate the selected material under the combined conditions.
Line layout
Check bend radius, unsupported spans and clearance at both connections.

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