Application area
2
The flowmeter valve with integrated vortex
hydrodynamic sensor and Pt1000 is used for the
precise measurement of volume flow rates and
temperatures in drinking water systems aimed at
setting predefined volume flows in accordance
with the calculation base. The flowmeter valve is
also suitable for hot water circuits with the usual
additives (glycol) for water after-treatment, and for
well water (filtered). For Figure 138 4G, KEMPER
recommends using an optionally available hand-
held measuring instrument (readout and meter)
The installation position is arbitrary as a matter
of principle. If there is a risk of sediments being
deposited in horizontal pipes, mounting the
sensor on top of the pipe is recommended. The
measuring section may not contain any foreign
bodies.
The function of the flowmeter sensor is based
on the principle of Karman’s vortex trail. The
vortices are shed at the damming body placed
in the current in proportion to the flow rate. Any
vortices created are detected via a piezoelectrical
paddle and converted into a frequency signal
by the integrated electronic circuits. A Pt1000 is
additionally integrated in the damming body for
measuring the temperature. The flowmeter valve
may not be applied to throughflow volumes below
Function
Installation and assembly
3
4
Inflow side installation: following valves and/or
fittings a minimum of 5 x DN, following pumps a
minimum of 30 x DN
Outflow side installation: the connection diameter
on the outflow side may not be smaller than the
valve diameter.
with digital display and storage facilities (Figure
138 00 002) for the volume flow, temperature and
flow rate parameters. For Figure 138 6G the sensor
can be connected to the BMS or DDC technology
to display the volume flows and temperatures. The
flowmeter valves are on both sides equipped with
external threads complying with DIN 3546, part 1,
for the universal connection of fittings for copper,
steel, stainless steel and multilayer composite
pipes ranging from DN 15 to DN 50.
the measuring range as no assessable vortices
occur below this measuring range. The results of
measurements taken below the measuring range
are hence misleading and erroneous (please pay
attention to the measuring range!). With the
KEMPER portable 'Control-plus´ measuring device
(reading and measuring device, Figure 138 00
002), any application below the measuring range
is detected automatically.
18 /24 – K41001384G001-00 / 12.2021–
©
www.kemper-olpe.de
© www.kemper-olpe.de
– 12.2021 / K41001384G001-00 – 19 /24
