2 silicone stopper
Replacing your old lab equipment is something that has to be regularly done to expect more controlled results. It is a shame to fail certain experiments because you had leaks in the circular system. Also, having your reagents compromised because you lack stopper seals can cost you experiment results and financial losses since you will have to get new chemicals. That is why you should not forget the 2 silicone stoppers and all the other smaller parts of the equipment.
These items are meant to be placed on top of all the glass equipment to seal them up. Also, they come with predrilled holes that can help you to measure certain parameters during the experiment. If there are two holes, they are meant for distillation or other circular systems where the liquid comes from the first hole, and gases go away from the second one. If you happen to get a 2 silicone stopper with one hole, you can use it as a sealant for non-volatiles, and you can use that hole to measure the temperature or the pH during the experiment.
The 2 stoppers are made from silicone because of the benefits that this material offers. Firstly, it is soft enough to have a good grip around the opening of the equipment and prevent leaks. Secondly, it can be used in conditions where there is heat involved because it can easily withstand that. It is important to get the right stoppers so they can offer the sealing effect. There are various sizes for every container, however, the 2 silicone stopper is most commonly being used especially for jugs and flasks. However, if you need other sizes as well, our firm can manufacture them for you. It is important to have various dimensions so you can be prepared in every situation that you come across.
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.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
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
- Removable closure fitted inside an opening
- Material
- Silicone. Specify the compound grade for the selected service.
- Application focus
- Laboratory flasks. Size the part against the selected assembly.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip.
- Profiles discussed
- Round profiles. Select the profile that matches the mating part and dimension that section explicitly.
- Contact conditions
- Other gases: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- 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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