Samson 42-10 Mounting And Operating Instructions page 20

Design and principle of operation
Table 3-1: Technical data · Valves · All pressures in bar
Type 2421 RS Valve
Valve size
Pressure rating
Max. constant operating pressure
Max. perm. pressure acting on one side
Leakage class according to IEC 60534-4
Max. permissible
temperature
Max. ambient temperature
Compliance
Type 2420 RS Actuator
Actuator area
Differential pressure
set point Δp, fixed
Max. permissible
temperature
Terms for control valve sizing according to IEC 60534: F
1)
DN 15 to 150/NPS ½ to 6
2)
3-6
1)
With EPDM diaphragm in
actuator
With FKM diaphragm in
actuator
DN 15 to 150/NPS ½ to 6
DN 200 to 250/NPS 8 to 10
With EPDM diaphragm
With FKM diaphragm
DN 15 to 250/NPS ½ to 10
PN 16, 25 and 40/Class 150 and 300
25 bar/360 psi
45 bar/650 psi
Leakage class VI
80 °C/175 °F for air, gases and water
220 °C/430 °F for steam with compensation chamber
150 °C/300 °F for air and gases
50 °C/120 °F
320 cm²/50 in²
0.2 bar/3 psi
0.3 bar/5 psi
80 °C/175 °F for air, gases and water
220 °C/430 °F for steam with compensation chamber
150 °C/300 °F for air and gases
= 0.95, X = 0.75
L T
·
640 cm²/100 in²
EB 3009 EN
2)
2)