Link-Seal: Modular pipe seals for wall penetrations
Pipe sealing solutions:
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Link-Seal rings are considered the first method for permanent sealing of pipes of any size passing through walls, ceilings and floors. In fact, any cylindrical object can be sealed quickly and easily.
Advantages:
- Fast and economical sealing solution
- Positive hydrostatic pressure
- Long service life of the seal
- Maximum protection against corrosion
- Wide range: 19 dimensional variants
- ISO quality assurance system
Applications:
- Floor penetration parts
- Wall penetration parts
- Sealing cable and pipe entries into manholes
- Wastewater treatment plant tanks
- Road crossings
- Lift shafts
- Hydropower dams
- Fire resistant penetrations
- Electrical insulation of pipes
- Vibration and noise dampers
The radial expansion of the rubber provides the hydrostatic pressure required for sealing.
Industries:
- Mining
- Municipal distribution networks
- Pulp and paper
- Electrical installations
- Telecommunications
- Swimming pools
- Tunnel works
- Cold storage warehouses
- Underground steel tanks
- Shipbuilding
- Railway crossings
Link-Seal: features
- Is an internationally accepted, certified and recognized brand
- Short delivery time for all sizes of annular spaces and common openings
- Installation is simple and fast – modules of 10 pieces are pre-assembled
- Available elastomer versions are resistant to petrol, fuels, solvents and/or high temperatures
- Solid rubber sealing elements ensure a long service life
- Suitable for subsequent modifications
- Ability to absorb shocks, noise, vibrations and stresses in the pipe
- Different colours indicate different rubber types
- Electrical insulator
- Hydrostatic sealing at water pressure
Technical details:
- Temperature resistance:
- Standard type, Black: -40° to +80° C
- Type T, Grey: -55° to +204° C
- Type O, Green: -40° to +70° C
- Type KTW/W270*: -40° to +80° C
- Oil, aviation fuel (kerosene) – Type 0
- Special version for plastic pipes: EPDM type, Blue: shore 35 ± 5
- Sealing pressure:
- Up to 5 bar (tested by TÜV and Lloyd's) for original Link-Seal type BC and BS316
- Up to 2 bar (tested by Lloyd's) for type S-LS
- Cathodic protection – dielectric strength – 500 V/mm
Link-Seal installation steps
1. Centre the pipe (cable) in the sleeve (or in the wall opening). Make sure the pipe is properly supported at both ends. Link-Seal seals are not designed to act as pipe supports.
2. Loosen the nuts to allow the links to move freely relative to each other.
3. The bolt heads must face outward. Any play between the links is normal and links must not be removed from the chain because of this. For small pipe diameters it may be necessary to stretch the links.
4. Push the chain into the annular space. For large diameters, start from the 6 o'clock position and continue simultaneously on both sides up to the 12 o'clock position.
5. Start tightening at the top (12 o'clock) and continue clockwise. Tighten only by hand.
6. Repeat tightening 2–3 turns clockwise.
7. After approximately 2 hours, tighten the nuts once more. In particular, for Link-Seal types LS 500 to LS 650 the nuts must be retightened several times.
Check that:
- The pipe is centred
- Link-Seal is installed with the nuts loosened
- The exact number of sealing links indicated in the table has been installed
- The pipe is properly supported at both ends
- The sealing ring and pipe surfaces are cleaned of impurities
Make sure not to:
- Install Link-Seal rings with the screws tightened unevenly using a screwdriver
- Install Link-Seal on helical welded steel pipes
- Fully tighten each screw before tightening the next ones
- Use electric tools for tightening
- Use electric tools when installing LS S316(X)
- Professional expertise
- Over 15 years of activity
- Know-how and innovation
- Tailored approach to each project according to specific criteria
