Silicone tubing size chart
Shopping for silicone tubing can be a bit tricky if you are not sure what you need. Another thing that some people might find confusing are the names of particular tubes and hoses that don’t really make sense once you look at the tubing itself. For instance, you find an 18″ silicone tube, but the cross-section is not 18 inches, nor is the inner diameter or length – so, what is it? How do you find the right tube? What do you do? Well, those markings do mean something, only not what you might think. Luckily, there is always a silicone tubing size chart that you can rely on to guide you through shopping.
A silicone tubing size chart is a chart with all the necessary information on a silicone tube you might need. So, let us give you a few examples. Let’s take a look at a standard, basic flow rate tubing – a 13″ for instance. That is a relatively small tube, with an inner diameter of 1/32 of an inch, or 0.8 mm. That is really small. In fact, this tube’s walls are thicker than the inner diameter. To be precise, they’re twice as thick, standing at 1.6mm or 1/16 of an inch. Other than size, there is other information you can find in a silicone tubing size chart, for instance, maximum pressure the tube can withstand, because after all, you will run some liquid or gas through it.
Now, these markings can be a bit confusing because if you take a look at the 25″ tube, that one is not twice as large as the 13″. In fact, the inner diameter is almost five times as large. However, if you take a look at the 24″ tube, the diameter is even bigger than the one with the 25″ tube. So, we guess you’re going to have to rely on the silicone tubing size chart at all times.
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.
Black silicone tubing
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.
Industrial 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.
Colourful silicone braided 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.
Food grade silicone braided 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.
Need a different size? Share your drawing, mating dimensions and intended use to discuss a suitable part.
Discuss Your RequirementsProduct specifications
- Product form
- Hollow elastomer tubing for a fitted line or sleeve
- Material
- Silicone. Specify the compound grade for the selected service.
- Dimensions to confirm
- Inside diameter, outside diameter, wall thickness and cut length.
- Size selection
- Choose the drawing or chart row by its functional dimensions and units; verify mating-part tolerances before ordering.
- Contact conditions
- Other gases: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Line layout
- Check bend radius, unsupported spans and clearance at both connections.
- Chart interpretation
- A catalog size number is an identifier, not automatically a diameter or length. Read its separate ID, OD and wall entries.
- Small-bore example
- The article cites a 0.8 mm inside diameter. Confirm the corresponding outside diameter, wall and cut length rather than treating the bore as a complete specification.
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