12
Technical data
The metering device has been tested and certified by the DVGW (German
Technical and Scientific Association for Gas and Water). This certification
only applies when using the chemical ST-DOS T-300 from
Schweitzer Chemie!
Applications for the chemical: ST-DOS T-300
n
Hardness stabilisation and corrosion protection in drinking water systems
Mean hardness range 8.4 –14 °dH
Carbonate hardness max. 20° dH
General data
Data
Value Unit
Metering agent
ST-DOS T-300
Metering back pressure MPa (for art. no. 141279)
0,8 (8) MPa (bar)
Metering back pressure MPa (for art. no. 141277,
141278)
1 (10) MPa (bar)
Pulse generator
Reed switch
max. processable pulse sequence: 50 Hz / 60 Hz
122 - 146 p/min
Water meter pulse interval
1 l/pulse
Electrical connection
230 (50/60) V (Hz)
Power consumption
10,4 W
Water temperature max.
30 °C
Ambient temperature
5 - 40 °C
Suction height max.
2 m
Emissions noise pressure level
< 70 dB(A)
Protection class
65 IP
CAUTION!
At a mains frequency of 60 Hz, the delivery capacity increases by 20%
and the metering back-pressure drops by 15 %.
Technical data
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Summary of Contents for 141277
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