Safety; Product Description; Installation - COMEM T Manual De Instrucciones

Safety

Safety instructions
Make sure that any person installing and operating the
pressure relief device:
• Is technically qualified and competent
• Fully comply with these assembling instructions
Improper operations or misuse could cause danger to:
• life and limb.
• to the equipment and other assets of the operator.
• to the equipment proper function.
Opening of the device will void your warranty.
Safety instructions in this manual are shown in three diffe-
rent forms to emphasize important information.
WARNING
This information indicates particular danger to life and health.
Disregarding such a warning can lead to serious or fatal injury.
CAUTION
This information indicates particular danger to equipment or
other property of the user. Serious or fatal injury cannot be
excluded.
This notes give important or specific information concerning the
equipment or as to work with the equipment.
Safety notes on the equipment operation
Electrical installation is subject to the relevant national
safety rules.
It is mandatory to connect the grounding cable because of
safety reason.
CAUTION
Installation, electrical connection and fitting the device may only
be performed by qualified personnel and only in accordance to
this instruction manual.
It is the responsibility of the user to ensure that the device is
used for specified application only.
For safety reasons, please avoid any unauthorized and improper
usage.
WARNING
All relevant fire regulation must be strictly followed.
4
NOTE
PRESSURE RELIEF DEVICES TYPE T & M

Product description

The pressure relief device protects the transformer
against non-permissible increases in pressure.
Once a specific predetermined value of pressure has
been reached, the pressure relief device will open, reduce
the pressure, and reseal itself tightly after achieving the
required reduction in pressure.
WARNING
It is important to observe the limit values indicated on the
nameplate and in this manual before commissioning the device.

Installation

CAUTION
The operating and the installation requirements described in
this manual must be strictly followed. If not, the device can be
damaged or a malfunction can occur.
The pressure relief device can be installed horizontally or
vertically.
Please be sure to leave sufficient space above the valve
(min. 70 mm / 2.75 mm) so that the optical signaler can
be completely pressed out of the housing when the device
is tripped.
CAUTION
The contact surface must be well levelled with a good degree of
roughness (Ra=3.2).
Remove all welding burrs to ensure that the welding seams of
the studs do not interfere with the housing flange holes (flange
slits).
During assembly it is advisable to apply a few drops of grease
on the gasket, this securing correct seat and preventing its
damaging during fastening.
Apply tightening torque on all the nuts following a cross
sequence.
T Type
Mounting of the valve
The pressure relief device has to be mounted on the pre-
ventively machined flange according the drawing using:
• nuts UNI5588
• grower washers UNI1751
• plane washers UNI 6592.
Screw the nuts with recommended torque (20Nm for
50T&80T and 25Nm for 125T & 200T). During the valve
mounting, pay attention to insert the O-Ring or the plane
gaskets included in the delivery.