Catalog_Sprinkler attachment_EN_2023

TECHNICAL INFORMATION
Units and conversion factors
SI units (international system of units)
As specified in the German law concerning legal units of measurement of 07/02/1969 and the implementing ordinance of
06/26/1970 in official as well as commercial transactions, only the SI units should be used. The basic units, derived units and
the definition of the international basic units are specified in DIN 1301 Part 1 (October 2010).
Basic value
SI basic unit
Symbol
Name
SI basic unit
Length l Metre m
Mass m Kilogram kg
Time t Second s
Electric current strength l Ampere A
Thermodynamic temperature T Kelvin K
Overview of the most important legal units
Legal units
Size
Symbol Unit name
Symbol
Conversion
SI Other
Area A Square metre m 2
Cross section Ar a 1 a = 100 m 2
Hectare ha 1 ha = 10000 m 2
Volume V Cubic metre m 3 1 m 3 = 1000 l
Nominal volume Vn Litre l 1 l = 0.001 m 3 = 1 dm 3
Density ρ Kilogram kg/m 3
Standard density ρn Divided by cubic metre
Force F Newton N
1
1 N = 9.81 kp = 0.102 kp,
1 kp = 9.81 N = 9.81 kg
m
s 2
Velocity v Metres divided by seconds m/s
Frequency f Hertz Hz 1 Hz = 1 /s
Volume flow V· Cubic metres divided by seconds m 3 /s
Standard volume flow V· n Litres divided by seconds l/s 1 l/s = 1 dm 3 /s = 0.001 m 3 /s
Setting value V· E Litres divided by minutes l/min 1 l/s = 60 l/min
Connected load V· A Cubic metres divided by hour m 3 /h 1 l/s = 3.6 m 3 /h
Pressure p Newton divided by square metres N/m 2 , 1 Pa = 1 N/m 2
Absolute pressure pabs Pascal Pa
= 1
kgm 1 kgm
= 1
s 2 m 2 s 2 m
Atmospheric pressure patm Bar bar 1 bar = 100 000 Pa = N/cm 2
Excess pressure pü Millibar mbar 1 bar = 1000 mbar
Underpressure
pu
Pressure differential
∆p
Nominal pressure
pn
Energy, work W Joule J 1 J = 1 Nm = 1 Ws
Heat quantity
Q
kgm
= 1
kgm
m = 1
s 2 s 2
Kilojoule kJ 1 kJ = 1000 J
Megajoule MJ 1 MJ = 10 6 J
Watt second
Ws
Kilowatt hour kWh 1 kWh = 3.6 MJ
07/2023
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