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Design and principle of operation
3.1 Technical data
The regulator's nameplate contains informa-
tion on the regulator version (see sec-
tion 2.1).
Process medium and scope of application
The (safety) pressure reducing valves are de-
signed to maintain pressure downstream of
the regulator to the adjusted set point district
heating systems or large heating networks.
Type 44-2, Type 44-3 and Type 44-9 are
suitable for controlling liquids and gases.
− Max. permissible temperatures for gases
up to 80 °C
− Air/nitrogen up to 150 °C
− Liquids up to 150 °C
The regulator is open when relieved of pres-
sure. It closes when the downstream pressure
rises above the adjusted set point.
Type test
The Type 44-3 and Type 44-9 Regulators
have been typetested as safety pressure re-
ducing valves (SSV) by the German Techni-
cal Inspectorate (TÜV).
The test mark is available on request.
With seals made of FKM
1)
14
Temperature range
The Type 44-2, Type 44-3 and Type 44-9
Regulators are designed for a temperature
range from 0 to +150 °C.
Leakage class
All regulators have the leakage class I ac-
cording to IEC 60534-4.
Noise emission
SAMSON is unable to make general state-
ments about noise emission as it depends on
the valve version, plant facilities and process
medium.
1)
Risk of hearing loss or deafness due to loud
noise.
Wear hearing protection when working near
the regulator.
Dimensions and weights
Table 4 provides a summary of the dimen-
sions and weights of the Type 44-2, Type 44-
3 and Type 44-9 Regulators. The lengths and
heights in the dimensional drawings are
shown on page 17 onwards.
WARNING
!
EB 2623-1 EN
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