Im Suedfeld 3 | 48308 Senden | Germany
Tel.: +49 (0) 2536 9939 0 | Fax: +49 (0) 2536 9939 20
Sealing systems
for jacking pipes
Trenchless pipe jacking is a special construction method
to lay or replace sewage and other pipes
of all diameters underground and on target.
Underground pipe jacking is nowadays the solution
in the case of high traffic volumes, narrow building sites
and/or building structures worthy of protection.
Cordes offers a variety of safe sealing systems not only
for jacking pipes and intermediate jacking stations,
various special sealing systems are stocked and made
to measure for jacking machines / TBM.
Main seals seal the jacking pipes
with each other in a reliable and
long-lasting way.
They are mounted to the spigot
and seal against internal and
external pressures under
the steel colar.
1. Main seals
Secondary seal (in this case PN-ZG)
PN-profiles are compression seals which are successfully
used as secondary and internal joint seals in pipe jacking.
Benefits:
PN-profiles are elastic seals of inner pipe joints in sewer
lines. The use of PN-profiles prevents foreign material
entering the joint area during the jacking process. If the
specified joint tolerances are observed the PN-profile
results in an effective second seal in the pipe connection
is available after the jacking process.
PN-profiles as secondary seals provide for more security,
but do not replace the main/primary seal of the pipe
connection.
PN-profiles comply with the requirements of EN 681-1
and EN 681-3.
Assembly:
The PN profile is fastened with the plate to the internal
diameter of the compression wood transfer ring and
grouted between the pipe front surfaces upon insertion.
Dimensioning is based on the internal joint gap sizes to
be expected.
2. Secondary seals
Material:
PN-profiles are fabricated from styrene butadiene
rubber (SBR) with solid or cellular structure.
The use of SBR has proven its worth in rainwater
and wastewater applications due to its excellent
sealing characteristics.
Note: We recommend using seals made of nitrile
butadiene rubber (NBR) for applications involving
mineral fuels such as oils, petrol or similar.
Primary seal
CK-89 or CK-Z
Fig.: PN-ZG as secondary seal
We can also produce special sizes on request. Please call or send us an e-mail with your requirements.
We promise to promptly handle your request.
Jacking seal PN-H-50
50.0
Jacking seal PN-28-NBR
The sealing systems used in intermediate jacking stations
are exposed to special requirements. Stress caused by wear
must be considered in particular. In our opinion, there is no
room for compromises regarding quality in this regard.
All Cordes sealing systems for intermediate jacking stations
are therefore in general fabricated from especially
optimized styrene butadiene rubber (SBR) optimised
for the application.
Seal for intermediate jacking station M-31944 (roof profile)
Seal for intermediate jacking station M-32004 (HR profile)
Primary seals
M-31944
26.0
46.0
M-32004
32.0
32.0
66
30 (Radius uncompressed)
28.0
Product range - if required - monitored and certified acc. above standards.
Contents such as technical specifications, values, and dimensions are given to the best of our knowledge, however, without any guarantee
and liability. If not specified otherwise, dimensions are given in millimetres. Our General Terms and Conditions shall apply.
B
B
3. Seals for intermediate jacking stations
mittleres Spaltmaß/w
15,0 ± 2,5
Seal for intermediate jacking station M-31530 (adjustable joint seal)
B
M-31530
40.0
65.0
B
H
Seal for intermediate jacking station M-31539 (adjustable joint seal)
B
M-31539
65.0
40.0
B
H
B
H
B
H
Seal for intermediate jacking station M-31930 (rectangular profile)
M-31930
60.0
40.0
B
B
H
H
H
Jacking seal PN-ZG
17.0
30.0
40.0
50.0
H
Sealing systems for sewers
Anker-3000
Vortriebsdichtungen
BK-62
CKP-02
CK-89
Anker-DPA
Anker-2000-Innotite
Anker-2000
Anker-2000-CX
Anker-3000
Anker-2000-CX
Anker-2000
Anker-2000-Innotite
Anker-DPA
CK-89
CKP-02
BK-62