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 fitting
10
Balancing diaphragm
11 Leakage line connection (special version),
G ¼ fitting
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
Summary of Contents for 2405 Series
Page 36: ...36 EB 2520 EN Certificates...
