Frequently asked questions

Are Sewatek service penetrations officially approved?

The products we manufacture and sell are ETA-approved. However, you should always check the pipe/cable specific fire-resistance ratings and that your structures comply with regulations.

Do Sewatek service penetrations have the CE marking?

Yes, even though it is not required of firestop products.

Who can install Sewatek service penetrations?

Our service penetrations can be installed by construction companies, electrical and HPAC contractors as well as people working in element factories. Our so-called renovation products can also be installed by diamond drillers and special firestop fitters. There are no qualification requirements as such. We do hope that the person doing the work is careful and reads the installation instructions carefully. For fitters involved with firestop work on a more regular basis, we recommend becoming a certified firestop fitter. Sewatek also offers product training that can be used to maintain one's firestop fitter certification.

So a Sewatek service penetration will not burn?

A majority of our products will most likely burn or at least melt in a fire, but this does not contradict their ability to function as firestops. Our products will not suffer so much damage that they would fail their designated fire-resistance rating. In fact, during fire tests, the fire-resistance rating of our products is almost always limited more by the overheating of the led-through linepipe/cable than the overheating of the service penetration unit itself.

Does Sewatek offer service penetrations for civil defenceshelters?

Yes, but Sewatek’s own products have not been tested or approved for this use. For this purpose our product selection contains Roxtec's VSS penetration seals.

Do Sewatek service penetrations need sealing with afire sealant?

No, simple acrylic caulk will do. Some of our products have been fire tested successfully without any caulking at all, however most fire tests are conducted with a caulk seal. Second-stage sealing prevents the transferal of sounds and smells, which is why it should always be done at both ends of the service penetration.

Can a Sewatek service penetration be left empty in astructure in case of possible later use?

Sure, but there are product-specific differences. All of our service penetrations can be left empty if the unused hole is plugged with a short piece of suitable cable or pipe and sealed with acrylic caulk. Our D42, D62 and D92 penetration units, mostly intended for renovation work, can be left completely empty as long as the ends of the unit are plugged with Sewatek's rubber plug (this means the penetration unit can also be used as a temporary firestop during construction, even before the pipes are installed).

I'm not sure if your basic product suits my purposes.Would it be possible to customise it?

Call us or send us a message and we can find out together. Over the years we have delivered service penetration units to many kinds of surprising places that would not even have required a firestop product. In many instances we can also customise the frames of our basic products without affecting their certifications or fire-resistance ratings.