Samson 2405 - Page 13

EB 2520 EN 13
Design and principle of operation
In the version with pressure balancing, the
forces produced by the upstream and down-
stream pressures acting on the plug are elim-
inated by the balancing diaphragm (10).
The plug is fully balanced.
p
1
p
2
p
1
p
2
10
1 Valvebody
2 Seat
3 Plug
4 Plug stem
5
Diaphragm plate with operating dia-
phragm
6 Actuator housing
7 Set point spring
8 Setpointadjuster(screwSW27)
9 Controllineconnection,G¼tting
10 Balancingdiaphragm
11
Leakage line connection (special version),
G¼tting
12 Cap
Fig.4: Type2405 Pressure Reducing Valve
without pressure balancing · K
VS
0.016 to 1 · Flow-to-close
Fig.5: Type2405 Pressure Reducing Valve with
pressure balancing · K
VS
6.3 to 32