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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 section 2.1).
Note
More information is available in Data Sheet
u T 3135-1.
Process medium and scope of application
The Type 2488/5xxx and Type 2488/
TROVIS 5xxx Pressure-independent Control
Valves (PICV) are used to control the flow
rate and temperature in district heating sys-
tems or extended heating or cooling net-
works.
− Suitable for water and non-flammable
gases
− Non-flammable gases up to 80 °C
− Liquids up to 150 °C
− Permissible ambient temperature 0 to
50 °C
The regulators are open when relieved of
pressure.
They close (provided the restriction has not
been closed manually) when the output sig-
nal issued by the electric control device in-
creases.
Conformity
The Type 2488/5xxx and Type 2488/
TROVIS 5xxx Regulator bears both the CE
and EAC marks of conformity.
16
Leakage class
All regulators have the leakage class I ac-
cording to IEC 60534-4.
Temperature range
The Type 2488/5xxx and 2488/
TROVIS 5xxx Regulators are designed for a
temperature range from –10 to +150 °C.
Noise emission
SAMSON is unable to make general state-
ments about noise emissions as they depend
on the valve version, plant facilities and pro-
cess medium.
WARNING
!
Risk of hearing loss or deafness due to loud
noise.
Î Wear hearing protection when working
near the valve.
Note
The Type 2488/5xxx and Type 2488/
TROVIS 5xxx Pressure-independent Control
Valves (PICV) are not safety valves. If neces-
sary, a suitable overpressure protection must
be installed on site in the plant section.
Dimensions and weights
Table 4 provides a summary of the dimen-
sions and weights of the Type 2488/5xxx
and 2488/TROVIS 5xxx Regulators. The
lengths and heights in Fig. 4 are shown on
page 21.
EB 3135-1 EN
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