Schmidt BA, Руководство по эксплуатации

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Schmidt Mess- und Regeltechnik
©2021 Schmidt Mess- und Regeltechnik
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Operating Manual
Flow Limiter BA, BB, BC, BF
Mechanical flow limiter
B
-E
N
_
BA
-BB
-BC
-BF
-20211021
16
Installing the device in the pipe system
Personnel:
▪
Qualified personnel
Protective equipment:
▪
As specified in the Safety Data Sheet of the
medium, protective equipment must be worn
when handling hazardous media. In addition,
the specifications of the system operator must
be followed. If no protective equipment is
specified, suitable protective gloves and
goggles must be worn.
▪
Protective gloves
▪
Goggles
1. Properly seal the pipeline
2. Install the device in the pipeline using a
suitable tool. Observe the direction of flow on
the device body
5.5 Initial startup
The following steps must be taken before initial
startup and any subsequent startup (e.g. after
removal and installation during maintenance).
Warning!
1. Ensure that the plant is operating vibration-
free. Vibrations could destroy the device. This
may result in serious injury to the user.
Warning!
2. Ensure that the medium is flowing
continuously. Pulse-like staggered loads
could destroy the device. This may result in
serious injury to the user.
Notice!
3. Completely fill the pipelines. Partial filling(s)
may result in malfunctions and damage to the
device.
Notice!
4. Vent the pipeline. If there are air pockets in
the line during the measurement, this could
result in damage to the device caused by
hydraulic shock. This may cause
malfunctions.
Notice!
5. Ensure that the plant is operating without
cavitation. Cavitation may result in
malfunctions and damage to the device.
The static pressure at the flow limiter inlet must
always be greater than or equal to the pressure
at the flow limiter outlet. The pressure difference
between the inlet pressure and the outlet
pressure (control pressure) must not exceed
10 bar / 145 psi. To ensure that the flow limiter
works properly, a minimum control pressure of
2 bar / 29 psi is required.
6 Operation
6.1 Operation basics
The flow limiter limits the flow through the pipe
system. Upon purchasing the device, the flow
rate has to be specified. Setting or reading-off the
flow rate on the device is not possible.
!
!
!