The following requirements must be observed:
n
For the applicable directives, see
Ä
„Regulations from section:
Notes on mounting“ on page 7
n
Observation of the data from the following table
For sprinkler systems in compliance with VdS, only black,
galvanised, or powder-coated steel pipes according to the
specifications for VdS approval may be used.
For nominal widths up to and including DN 50, the minimum
pipe wall thickness of 2.6 mm and the maximum wall thick-
ness of 3.3 mm are applicable. For the distances and
arrangement (fixing intervals) for steel pipes according to
current regulations, see
Ä
„Regulations from section: Notes
on mounting“ on page 7.
Permissible pressures, nominal widths and application conditions
Permitted pressure
1.6 MPa (16 bar)
Nominal widths
D
¾
–2
Pipe wall thickness
min. 2.6 mm; max 3.3 mm
Area of use (piping network)
Wet sprinkler units:
n
Piping network downstream of
the alarm valve station
Dry sprinkler units:
n
Piping network downstream of
the alarm valve station
Fixing intervals
1)
Firefighting water additives
Generally not permitted; excep-
tions only with the manufacturer's
permission and prior agreement
of the VdS
1)
see
Ä
„Regulations from section: Notes on mounting“ on page 7
The following fire hazard classes are covered by Megapress:
n
Fire hazard class LH (light hazard)
n
Fire hazard class OH 1–4 (ordinary hazard)
n
Fire hazard class HHP 1–4 (extra hazard, production risks)
n
Fire hazard class HHS 1–4 (extra hazard, storage risks)
As long as they are free from dirt, smooth, firm, even and undamaged,
the following pipe surfaces are suitable for the production of press con-
nections without further treatment:
Fire extinguisher and sprinkler systems
Preparation of the pipes
Handling
Megapress
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