Samson EB 01b, Монтаж и эксплуатация

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3-7
EB 01b_EN
February 2022 edition
Subject to technical changes
Design and principle of operation
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Insert the o-ring (18) into the inner groove of the stuf fi ng box
(19).
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Press the upper bearing bushing (17) into the bottom part of
the stuf
fi ng box (19).
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Grease the stuf fi ng box (19) on the thread.
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Screw the stuf fi ng box (19) into the upper thread of the bon-
net fl ange (2) so that the outer groove of the stuf fi ng box is
still visible.
Do not screw the stuf fi ng box (19) into the bonnet fl ange as far
as it will go.
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Push the yoke (25) onto the bonnet fl ange and fasten with the
grooved nut (26).
3.5.2.4 Final assembly of the bonnet fl ange
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Insert the spring washer (9), thrust washer (8) and o-ring (7)
in the bonnet
fl ange (2). Refer to the drawing Figure 3-3 for
the arrangement of parts.
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Insert the preassembled stem unit (see Chapter 3.5.2.2) in the
bonnet
fl ange (2)
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Press the fl ange of the bellows (5) into the turned recess of the
bonnet fl ange (2).
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Screw in the threaded pin (29).
When screwing in the threaded pin (29), pay attention to the
depth of the groove in the stem (12).
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Screw in the screw plug (13).
3.5.2.5 Final assembly of the valve (standard
stuf fi ng box version)
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Clamp the preassembled valve body (see Chapter 3.5.2.1) in
a vice with the bonnet opening facing upwards.
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Place the preassembled bonnet fl ange (see chapter 3.5.2.4)
onto the valve body carefully.
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Insert the screws (20) and align using the nuts (21). Tighten
the screws evenly in a criss-cross pattern.
Damage to the stem due to twisting!
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Before tightening the screw connection, pull the stem up as
far as it will go.
Damage to the valve due to incorrect tightening torques!
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The permissible torques for assembly and for retightening the
connection of the bonnet
fl ange can be found in Table 15-1
in Chapter “15.1.1 Tightening torques.
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Tighten the stuf fi ng box (19) after adjusting the valve.
Info
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NOTE
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Screw the lock nuts (24) onto the stem. Adjust the nuts, see
Chapter “5.3.1 Travel adjustment with separately supplied
SAMSON actuator”.
3.5.2.6 Final assembly of the valve (version
with optional adjustable backup
packing)
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The fi nal assembly of the valve takes place as already de-
scribed in Chapter 3.5.2.
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Do not tighten the stuf fi ng box (19), rather unscrew it com-
pletely and remove it from the valve.
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Clean the removed stuf fi ng box to ensure it is free of grease.
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Apply Loctite 668 onto the thread of the stuf fi ng box (19).
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Screw the stuf fi ng box into the bonnet fl ange.
Do not tighten the stuf fi ng box, the distance between the collar of
the stuf fi ng box and the bonnet fl ange must be 3 mm!
Figure | 3-4: Adjustable stuf fi ng box
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Seal the stuf fi ng box with a dot of red paint.
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