catalogue - Düker GmbH & Co KGaA

66
Information about
ductile cast iron fittings
Ductile cast iron fittings will be delivered as follows:
with TYTON ® -socket
with TYTON ® -socket and pre-chamber for thrust resisting joint Novo SIT ®
with screw-gland socket joint
with bolted-gland socket joint
with flanges
Ductile cast iron socket fittings with TYTON ® -sockets ( flangeless ) for use in potable water pipelines are
designed for working pressures as given in EN 545 Annex A.3 and EN 545 Table A.1 for wallthickness class K9.
Ductile cast iron fittings with screw-gland or bolted-gland sockets for use in potable water pipelines are
designed for working pressures up to 16 bar. Higher pressures on request.
Ductile cast iron fittings with one flange or more, for the use in potable water pipelines are designed for working
pressures as given in EN 545 Annex A.3 and EN 545 Table A.2.
The working pressure has to be mentioned in orders, because the flange dimensions of these fittings are varying
depending of the nominal pressures rates.
Ductile cast iron fittings for the use in sewerage pipelines are designed for working pressures up to 6 bar, as
given in EN 598 Clause 1 ( Scope ). Higher pressures on request.
Ductile cast iron fittings for the use in gas pipelines are designed for working pressures up to 16 bar, as given
in EN 969 Clause 1 ( Scope ).
> All indicated weights are valid for fittings with cement-mortar linings <
Coating: see chapter 3 “Inside- and outside protection”.
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