2
Installation
See Figs. 1 and 2
The regulator must be installed in the return
flow pipe as shown in the installation sche-
matic in Fig. 5.
When choosing the place of installation, en-
sure the regulator can be easily accessed af-
ter completion of the plant.
NOTICE
The regulator must be installed free of stress. If
necessary, support the piping near the con-
nections. However, do not attach supports to
the valve or actuator.
6
EB 3013 EN
Installation
Fig. 2 · Schematic diagrams of regulator with valve
balanced by a diaphragm
Type 42-34 · Balanced by a diaphragm · DN 125 to 250
1
Valve body
1.1 Restriction (for flow rate
set point adjustment)
1.2 Lock nut
1.3 Cap
1.4 Orifice
2
Seat
3
Plug
4
Plug stem
5.1 Balancing diaphragm
11 Coupling nut
12 Diaphragm stem
Type 2424
Actuator
Type 2423 Valve
balanced by a
diaphragm
