Assembly Of Lk Universal System - LK Systems PE-X Assembly Instructions Manual

Assembly instructions | LK PE-X, PAL and PE-RT pipes

Assembly of LK Universal System

The following headings primarily relate to LK
Universal Systems however relevant parts are
also applicable for LK Floor Heating Systems. See
also the separate heading Assembly of LK Under-
floor Heating System.
Suspension, clamping and fixing
LK PAL Universal pipes in straight lengths are
used for visible installation. PE-X Universal pipes
on rings are recommended for concealed instal-
lation and for installation on cable racks, for ex-
ample.
Suspension must take place using rubber-coated
clips, LK Clip PE-X/PAL, and be tightened to
"sliding position", i.e. so that axial movements
are possible. Pendulum-type roof brackets are
used for attachment to the building structure.
Pendulum lengths should not exceed 150 mm.
LK Clip PE-X/ PAL is also used for fixing, but
with the clip tightened to "fixed position" to pre-
vent the pipe moving axially. Please see the pipe
wholesalers' ranges for parts for robust, move-
ment-inhibiting mounting to the building struc-
ture.
Clamping between suspension and fixing points
must be made if there is a risk of movement in
the piping network, for instance upon rapid shut-
off of e.g. mixers and closing of solenoid valves.
Clamping is intended to prevent damage to the
piping and to prevent movement noise spreading
to the building structure.
Horizontal laying
With horizontal installation,
be located at branch
shank length of the branch pipe is sufficient ac-
cording to the section entitled Expansion-absorb-
ing devices in the project planning and design
guidance.
However, it is always recommended to make the
shank long enough to provide room for expan-
sion, this is accomplished for example by making
extra bends on the branch as shown in the exam-
ple below.
EN.29.C.41.191217
4 (10)
fixing must
pipes unless the
Fixings must also be made at points where expan-
sion movements need to be directed to special
expansion loops. When laying in cable racks or
similar, we only recommend clamping between
any fixed points.
Example of clamping, horizontal installation.
Suspension between fixed points must take place
as follows.
Visible installation:
LK Universal Maximum distance between suspen-
Pipe sion points
X16 - X25 0.5 m
A16 and A20 1.0 m
A25 and A32 1.5 m
A40 to A75 1.8 m
Concealed installation (in pipe recesses, etc.):
LK Universal Maximum distance between suspen-
Pipe sion points
X16 - X25 1.5 m
A16 - A75 2.0 m