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The two diaphragms (4.1) provide a certain
amount of safety when one of the dia-
phragms ruptures and prevents the process
medium and external pressure medium from
Type 2371-10
11
2
3
1
Valve body
2
Seat
3
Plug
4
Operating
diaphragm
4.1 Two diaphragms
5
Upper plug section
Fig. 1: Functional drawings of the regulators
EB 2640 EN
15
12
p
c
4.1
p
1
Type 2371-11 · Locking screw to lock
the set point screw in position
6
Set point screw
6.1
Adjustment opening with blanking plug
7
Set point springs
7.1
Spring plate
8
Actuator housing
9
Clamp fitting
Design and principle of operation
mixing. The screw (12) prevents parts from
falling apart inadvertently while the regula-
tor is being dismantled.
Type 2371-11
6.1
6
8
p
15
2
5
9
1
2
3
6
12
p
1
11
Test connection or leakage line
connection
12
Locking screw
15
Mechanical stop (disk)
p
1
Input pressure
p
Output pressure
2
p
Set point pressure (control
C
pressure), external
7
7.1
12
11
4
p
2
7
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