Skip to content
RUBBER & SILICONEStandard parts. Custom solutions.

Rubber laboratory tubing

Rubber laboratory tubing

Rubber laboratory tubing is used in a laboratory, as you can probably tell by the name. Laboratories are one of the world’s leading consumers of rubber tubing because of all the work and experiments they do on a daily basis. Most of the equipment, aside from glassware, that’s found in a laboratory is one way or another dependent on rubber laboratory tubing. What is also popular in laboratories are rubber stoppers, especially for Erlenmeyers and other glassware, but more on that some other time.

Rubber laboratory tubing is often called silicone laboratory tubing or just silicone rubber tubing. Why? Well, if you couldn’t tell from the name, silicone is the most commonly used rubber in this kind of a setting. As you probably know, silicone is an elastomer, which means it’s very strong, durable, and flexible – all of which are very important properties for a piece of laboratory equipment. But, what also makes silicone the number one choice for rubber laboratory tubing is its remarkable stability and non-reactivity.

Let’s start with chemicals. As you can probably imagine, the inside of the laboratory is filled with various chemicals used for all sorts of experiments. Everything from water to highly corrosive and abrasive acids can be found in a laboratory. Thankfully, silicone tubing is perfect for handling any of those. Its impeccable chemical non-reactivity makes it the obvious choice for an application like this. Nothing that you’d convey through a silicone tube would be able to leave the tube or damage the silicone. What is also quite important is how stable and non-conductive rubber laboratory tubing is. This matters because rubber laboratory tubing won’t ever get hot to the touch, or freeze. This is due to the materials like silicone, from which the lab tubing is made of. Generally speaking, you could use this tubing in environments as hot as 270 °C.

Rubber Hose Size Catalog

Compare tube bore, outside diameter and available wall thickness. Confirm material compatibility and operating requirements for the selected hose.

Rubber Hose

Compare Inside Diameter and Outside Diameter in mm. 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
Rubber Hose — product view
Illustrative product appearance. Refer to the selected row and part drawing for dimensions.
Part No.Inside DiameterOutside Diameter
RL5-16516
RL7-16716
RL3-19319
RL5-19519
RL7-19719
RL3-25325
RL5-25525
RL7-25725
RL3-32332
RL5-32532
RL7-32732
RL3-38338
RL5-38538
RL7-38738
RL3-45345

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 options discussed
Silicone. Choose one formulation for the actual contact and loading conditions.
Application focus
Laboratory connections. Size the part against the selected assembly.
Dimensions to confirm
Inside diameter, outside diameter, wall thickness and cut length. Match these to laboratory connections.
Contact conditions
Water and acids: define concentration, temperature and contact time, then check compatibility with the chosen compound.
Exposure to evaluate
Rubbing or abrasion. Validate the selected material under the combined conditions.
Line layout
Check bend radius, unsupported spans and clearance at both connections.

Need a quote or a custom part?

Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.

Contact Us Now!

Email us[email protected]

Ready to Find Your Rubber Part?

Send your requirements or drawing to discuss materials, dimensions and custom parts.

Request a Quote

Request a Quote

Share your requirements below. For custom colors, include your Pantone color code.

Contact Our Team

Prefer email? Contact us at [email protected]

Attach a drawing (optional)