Sealing against periodically accumulating water (3 m water column DIN 18195-x) and gas diffusion.
In addition: solutions against propagation of fire and smoke penetration.
cable and duct entries, distribution cabinets, cable conduits,
ore boreholes, wall feed-throughs, service entries in buildings,
annular spaces and more.
For inner diameters up to 500 mm.
Regulations governing the closure of cabled ducts against the entry and further passage of water,
and the requirements for the sealing elements used for this purpose, are to be found in the following:
Examples of requirements are:
•Tightness against 3 m water column and gas diffusion
(* after removal and re-installation without damage to conduit or cables)
* A more stringent demand from France Telecom, Fibre Optics CT GmbH
T-Com TS 0307/96, France Telecom RSD CSE C75-11H, British Telecom LN584,
Testing for power cables VDE 0278-629-1/A1 and DIN EN 61442, as well as the DVGW*
provisions in VP601 for service entries for gas and water in houses, etc.
*standardization body for the gas and water industry
We measured and compared the total leak rates of inflatable sealing elements in an independent laboratory.
Zhe result: Wolf sealing elements outperformed those of competitor products and exceeded the
Deutsche Telekom requirement, i.e. they have a longerservicelife
Extract from Test Report FO 076/2010 und FO 176/2011. Short-circuit requirement and tightness tests after ageing (temperature cycling)
In order to verify chemical resistance pH2 to pH12, various substances were tested in the presence of TÜV-Süd* (Test protocol FO 175/2011)