Burkert Type S039 - Manual (Page 5)

16
Table 2: Dimensions of the fittings with G, NPT or
metric external thread connections
DN
[mm]
P
[mm]
A
[mm]
D [inch] [mm] L
[mm]
06 29,7 90,0 G 1/4 or G 1/2 - 14,0
08 29,7 90,0 G 1/2 or NPT 1/2 M 16 x 1,5 14,0
A
L
D
P
K factors (pulse/litre)
The K factors have all been determined under the following
reference conditions: medium = water, water and ambient
temperatures 20 °C, min. upstream and downstream
distances respected, appropriate pipe dimensions.
K factors (pulse/litre)
DN06 DN08 DN15 DN15 v2
450 288 93,6 74,8
K factors (pulse/litre)
DN20 DN25 DN32 DN40 DN50
60,3 45,9 28,7 18,2 10,4
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Two versions of the S039 in DN15 exist, having
different K factors.
Only version 2, identified by the "v2" marking, is
available from March 2012. The "v2" marking can
be found on the side of the DN15 fitting in metal:
V2
To convert a K factor given in pulse/litre, use one
of the following formulae:
K factor in pulse/US gallon = K factor in pulse/litre
x 3.785 to obtain a flow rate value in US gallon/
time unit
K factor in pulse/UK gallon = K factor in pulse/litre
x 4,546 to obtain a flow rate value in UK gallon/
time unit
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18
7. inSTAllATion
Safety instructions
danger
risk of injury due to high pressure in the installation.
• Stop the circulation of fluid, cut-off the pressure
and drain the pipe before loosening the process
connections.
risk of injury due to high fluid temperatures.
• Use safety gloves to handle the fitting.
• Stop the circulation of fluid and drain the pipe before
loosening the process connections.
risk of injury due to the nature of the fluid.
• Respect the prevailing regulations on accident pre-
vention and safety relating to the use of hazardous
products.
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Warning
risk of injury due to non-conforming installation.
• Fluidic installation can only be carried out by qualified
and authorised personnel with the appropriate tools.
• Observe the installation instructions for the measuring
device inserted into the fitting.
risk of injury due to an uncontrolled restart.
• Ensure that the restart of the installation is controlled
after any interventions on it.
Warning
risk of injury if the fluid pressure/ temperature
dependency is not respected.
• Take into account the fluid pressure/ temperature
dependency according to the materials from which the
fitting is made and to the measuring device used (see
the relevant user manual).
• Comply with the Pressure Directive 97/23/EC.
→
Select an appropriate fitting regarding to the flow
velocity and the flow rate of the fluid in the piping, see
the following charts:
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