Samson 2479, Mounting And Operating Instructions

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3-8 EB 3132-3 EN
Design and principle of operation
Table 3-3: Technical data · Control thermostats/safety thermostats
Type 2430 Control Thermostat
Set point range
Continuously adjustable: 0 to 35 °C, 25 to 70 °C, 40 to 100 °C, 50 to
120 °C, 70 to 150 °C
Permissible ambient temperature range –20 to +80 °C
1)
Max. perm. temperature at the sensor 50 K above the adjusted set point
Max. perm. pressure at sensor 40 bar
Capillary tube length 2 m
2)
Safety thermostat … Type 2403 for STM Type 2439 for STL
Adjustment range of limit value
60 to 75 °C · 75 to 100 °C · 100
to 120 °C
10 to 95 °C · 20 to 120 °C
Max. permissible ambient temperature 50 °C
80 °C (with electric signal
transmitter 60 °C)
Max. perm. temperature at the sensor 25 K above the adjusted set point 20 K above the adjusted set point
Max. permissible pressure at sensor with
thermowell
40 bar
Capillary tube length 5 m 2 m 2)
1) At temperatures below freezing: ice formation may damage the plant and especially the valve.
2)
Special version: Type 2430 with 5 m and 10 m capillary tube · Type 2439 with 5 m capillary tube
Table 3-4: Materials · Material number according to DIN EN
Type 2479 Valve
Body
Red brass CC499K (Rg 5) · Spheroidal graphite iron EN-GJS-400-
18-LT 1)
Seat Stainless steel 1.4305
Plug Brass (resistant to dezincification) 3) with EPDM 2) soft seal
Valve spring Stainless steel 1.4310
Operating diaphragm EPDM with fabric reinforcement
Seals EPDM 2)
Type 2430 Thermostat
Sensor
Capillary tube Copper
Thermowell Nickel-plated copper or stainless steel 1.4571
1) Additional version in DN 32 to 50: valve with flanged body made of spheroidal graphite iron
2)
Special version, e.g. for mineral oils: FKM
3) When K
VS
0.4 and 1.0: 1.4305