Samson EB 2111 - Page 21

EB2111/2121/2123 EN 3-7
Design and principle of operation
Table 3-2: Technical data · Valves · All pressures in bar (gauge)
Type2111 Valve unbalanced
Type2422 Valve · Balanced by a bellows · Balanced by a diaphragm
Valve size
DN15 to 50/
NPS½ to 2
DN65 to 100/
NPS2½ to 4
DN125 to 150/
NPS5 to 6
Pressure rating PN16,25,40
Permissible valve
temperature
Without balancing
Max.350°C·See
pressure-temperature
diagram in uT2010
–
Balanced by a
bellows
Max.350°C·Seepressure-temperaturediagraminuT2010
Balanced by a
diaphragm
–
Max.150°C·See
pressure-temperature
diagram in uT2010
–
Leakage class
according to
IEC60534-4
Without balancing
≤0.05%ofK
VS
coef-
cient
–
Balanced by a
bellows
Metalseal:≤0.05%ofK
VS
coefcient
Softseal:≤0.01%of
K
VS
coefcient
Balanced by a
diaphragm
–
Softseal:≤0.01%of
K
VS
coefcient
–
Conformity
·
Table 3-3: Technical data · Control thermostats · All pressures in bar (gauge)
Types2231 to 2235 Control
Thermostat
Size150
Set point ranges
–10to+90°C,20to120°Cor50to150°C
ForTypes2232,2234,2235also100to200°C,150to250°C
Perm. ambient temperature at the set
point adjustment
–40to+80°C
Perm. temperature at the sensor 100Kabovetheadjustedsetpoint
Perm.
pressure at
sensor
Type2231and
Type2232
Without/withthermowell:PN40·Withthermowell:PN40·PN100
1)
Thermowellwithange:PN40·PN100
1)
Type2233,Type2234
andType2235
Withoutthermowell:PN40·Withangeonrequest
Capillarytubelength 5m(10or15masspecialversion)
1)
Thermowell (DVGW version)