Replacing The Diaphragm Unit - Samson 2371-10 Mounting And Operating Instructions

6.4 Replacing the diaphragm
unit
Type 2371-11 · Diaphragm unit
In the event that the diaphragm is defective,
we recommend replacing the entire dia-
phragm unit, consisting of the diaphragm
(4), plug stem (3.2) inside of it and plug sup-
port (3.1).
Type 2371-11 ∙ Housing with clamp fitting
Diaphragm unit removed
Type 2371-11 ∙
Fig. 11: Replacing the diaphragm unit
EB 2640 EN
Contact SAMSON if you intend to replace
just the diaphragm or plug support.
How to proceed (see Fig. 11):
1. Remove the plug (see section 6.3 on
page 19).
Note:

The valve and housing are loaded by
the compressed springs. The valve is
opened by spring force. Relieve the
8
set point springs of tension before re-
moving the actuator housing.
12
2. Remove the stopper. Undo the locking
screw (12). Turn the set point screw (6)
9
counterclockwise to relieve the tension
from the set point springs. As a result,
the housing is not loaded by the spring
tension anymore (refer to section 5.2 on
page 11).
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3. Release clamp fitting (9). Lift off the actu-
ator housing (8) together with the spring
3.2
assembly (7) and set point screw (6).
4. Remove the guide flange (5) together
with plug stem (3.2) inside of it as well
5
as the mechanical stop (15), plug sup-
port (3.1) and diaphragm (4).
5. Unscrew the locking screw (12). Undo
both screws of the mechanical stop plate
4
(15). Lift off plate.
Cleaning and maintenance
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