Silicone stopper with 2 hole
Silicone stopper with 2 hole is indispensable part of every lab. Anyone who has ever worked in a lab or conducted certain tests in a lab knows how diverse lab equipment is and how many different pieces of equipment you need to perform just one test. Silicone stopper with 2 hole is necessary for test tube, boilng tube, soxhlet extractor, as well as various types of flasks, such as erlenmeyer flask, volumetric flasks, straus flasks and so on.
Precisely because there are so many types of lab equipment, it is necessary for a silicone stopper with 2 holes to be available in a very large number of sizes. On our website you will find dozens of sizes that are suitable for many of the aforementioned pieces of lab equipment, as well as for many that we have not mentioned. But as each laboratory has its own specific requirements, we know that it will happen that none of the already offered sizes suits you and that you have to order a custom silicone stopper with 2 holes. This will not be a problem because we can do whatever you need. Choose the diameter and all the other parameters, and we will do it for you. Also, you can choose the diameter of the 2 holes located on the silicone stopper. The diameter of the holes is determined by the instruments you will insert into the flask or tube, as well as by the substance inside.
We usually make a stopper with 2 holes of silicone. You can choose any other rubber material, if you do not use a rubber stopper in the laboratory, but somewhere else, so for example, tear strength is more important to you than chemical stability. We use silicone because it can withstand high temperatures and chemicals do not affect the composition of this polymer.
Stopper & Plug Size Catalog
Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.
RST T-Shaped Plugs
Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.
RSA Tapered Corks
Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.
RSB Undercut Plugs
Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.
RSD T-Shaped Stoppers
Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.
Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.
Discuss Your RequirementsProduct specifications
- Product form
- Container stopper with two passages
- Material
- Silicone. Specify the compound grade for the selected service.
- Application focus
- Test tubes, laboratory flasks, Erlenmeyer flasks and laboratory vessels. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip. Match these to test tubes and laboratory flasks.
- Passage layout
- Dimension each bore, its location and the remaining wall; match it to the tube, probe or fitting passing through.
- Seating check
- Check the sealing contact around the opening and the force needed for insertion and removal.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
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