Idiomas disponibles
Idiomas disponibles
Mounting of the valve
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2
A
B
C
D
E
F
Figure 1
1
2
The pressure relief device has to be mounted on the pre-
ventively machined flange according the drawing (fig.1)
• n.6 nuts M16 UNI5588,
• n.6 grower washers Ø16 UNI1751,
• n.6 plane washers Ø16 UNI 6592
(fig. 2/2) (fig. 3/2) (fig. 4/2).
Screw the nuts with recommended torque (25 Nm /
18.4 Ft·Lbs).
During the valve mounting pay attention to insert the
O-Ring gasket included in the delivery (fig. 2/1) (fig. 3/1)
(fig. 4/1).
Bleeding of the valve
If installed vertically pay attention that the bleed screw
(fig.2/3) (fig.3/3) (fig. 4/3) will be placed in the highest
point.
In any case, both with horizontal and with vertical moun-
ting, is necessary to bleed the valve after the transformer
oil is filled.
Unscrew partly the bleed screw (fig.3/3), to allow to the
excess air to come out then screw the bleed screw
Closing of the valve
The pressure relief device 170SC duct cover (fig. 3/5) must
to be closed after the installation. Duct Cover (Fig. 3/6) has
to be installed using 4 screws with recommended torque (8
Nm / 5.9 Ft·Lbs).
CAUTION
The locking system (available only for type 170SC fig.3/7)
ensures safe transportation and must be removed before
powering up the transformer.
Max withstand pressure: 200 kPa
3
4
5
M16
170
235
CREATED BY
Diego Boro
APPROVED ON
-
COMPANY
COMEM
RESPONSIBLE DEPARTMENT
ITABB-9AAE306693
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A
B
C
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D
Figure 2
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REVIEWED BY
APPROVED BY
-
-
DOCUMENT KIND
BASED ON DOC ID
WORK ORDER ID
PROJECT ID
Component Drawing
TITLE / SUPPLEMENTARY TITLE
COMEM LPT PER CATALOGO
-
F
DOCUMENT ID
STATUS
REV
ITER
SHEET
NV-402
A
Development
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3/3
© COPYRIGHT ALL RIGHTS RESERVED
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DRAWING SHEET ISO 5457: 1999-A3T
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Figure 3
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Figure 4
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