A. Kirchner & Tochter GmbHDieselstraße 17 · D-47228 Duisburg
Version 2.1
Sprinkler measuring orifice
1
SMB
1.General
1.1Preface
These assembly and operating
instructions apply to sprinkler
measuring orifices, type SMB with a
display of m3/min and to the SMB-OE
with percentage display.
All information contained in these
operating instructions on assembly,
operation, repairs and maintenance
have to be observed and adhered to.
The operating instructions form an
integral part of the sprinkler
measuring orifice; they have to be kept
at a suitable location in the vicinity of
the place of application and must be
accessible for the operators.
In case of interaction of different plant
components, the operating
instructions of those also have to be
observed.
1.2Exclusion of liability
Kirchner und Tochter will not accept
any liability for damage or disruptions
caused by operating errors, nonobservance of these assembly and
operating instructions, inexpert
execution of assembly and repair work
or by the improper use of the sprinkler
measuring orifice.
2.Safety
2.1General safety information
These assembly and operating
instructions contain important
information to be observed on the
assembly, the operation, on repairs
and maintenance of the sprinkler
measuring orifice. Each person
charged with the assembly, the
operation, repairs and maintenance
must have read and understood these
operation instructions.
Non-observance of these assembly and
operating instructions, or inexpertly
conducted assembly and repair work
may result in disruptions of the
sprinkler system. As a consequence,
man or animal may be at risk or
material assets may be damaged.
Hazards by electric energy or released
media energy must be prevented.
A. Kirchner & Tochter GmbHDieselstraße 17 · D-47228 Duisburg
Version 2.1
Sprinkler measuring orifice
2
SMB
2.2Proper use
The VdS approval of the sprinkler
measuring orifice is valid for the flow
measurement of water. Installation in
pipework may be effected only between
two flanges (intermediate flange
assembly).
Select the sprinkler measuring orifice
model in accordance with the pipe
cross-section at the location of
application for the sprinkler measuring
orifice.
The limit values of the sprinkler
measuring orifice are to be observed
as prescribed in chapter „Technical
data“. Rebuilding or other modifications
of the measuring device may be
effected by Kirchner und Tochter only.
2.3Explanation of pictographs and
signs
Pictograph on work safety
This pictograph can be found at all hints
on work safety in these assembly and
operating instructions pointing out
hazards for life and limb of persons.
Further, this pictograph highlights
safety hints in these operating
instructions that point to regulations,
guidelines or operating sequences that
must be observed without fail. Nonobservance may result in damages to
or a destruction of the measuring
orifice and / or other parts of the
installation.
2.4Safety information for the owner
and the operators
The personnel charged with the
assembly, the operation, repairs and
maintenance must be qualified to fulfill
the respective tasks and must have
been trained and instructed with
regards to the task in question.
2.5Regulations and guidelines
Apart from the information contained
in these assembly and operating
instructions, the regulations, guidelines
and standards such as DIN EN, as well
as the DVGW and VdS guidelines in
case of branch-oriented applications
must be observed; the same is true for
the regulations on the prevention of
accidents valid in the destination
country.
2.6VdS approval
The sprinkler measuring orifice has
been approved by the VdS. During the
installation, operation, repairs and
maintenance, the VdS guidelines have to
be adhered to.
3.Transport and storage
At the factory, the sprinkler measuring
orifice was suitably packed for transport
and storage. Transport and storage
should be effected while in the original
packing only.
The measuring device is to be
protected against shocks and
blows!
A. Kirchner & Tochter GmbHDieselstraße 17 · D-47228 Duisburg
Version 2.1
Sprinkler measuring orifice
3
SMB
4.Description
4.1Field of application
The sprinkler measuring orifice SMB is
a measuring device employed to measure
the flow rate in pipework of stationary
sprinkler systems.
4.2Design and function
Due to physical reasons, different
pressure potentials are found on both
sides of the orifice (5). This differential pressure acts quadratic proportional
to the volume flow inside the pipework
(4).
The scaling (1) of the dial gauge (3) is
realized in volume flow units (m³/min).
The dial gauge displays the present
volume flow inside the pipe via the
position of the hand (2).
4.3Peculiarity SMB-OE
All information contained in these
assembly and operating instructions
are also valid for the measuring device
SMB-OE.
A peculiarity of the sprinkler measuring
orifice SMB-OE is the fact that the
scaling of the scale reading plate has
been subdivided in percent.
A label on the dial gauge serves to read
the effective flow values in m³/min for
the individual nominal cross-section of
the pipe.
This permits the combination of the dial
gauge with all nominal cross-sections
of the SMB-OE.
1 scaling
2 hand
3 dial gauge
4 pipe work
5 orifice
6 flange