PRESSCON FX PREVENT, Руководство пользователя

Страница: 4 / 18

Page 4 of 18
Introduction
Before anything else, we’d like to congratulate you with the purchase of a PRESSCON vacuum-
overpressure safety valve or a vacuum safety valve. The vacuum-overpressure safety valve and vacuum
safety valve will provide safety against overpressure and a vacuum for your buffer tank. To clarify the usage
and functioning of your vacuum-overpressure safety valve and vacuum safety valve we offer you this
manual.
1. Precautions and safety instructions
During working with the vacuum-overpressure safety valve and the vacuum safety valve there are several
safety hazards that need to be taken into account. These are important both while working and installing the
safety valves. We highly recommend taking these safety hazards into account before proceeding to work
with the vacuum-overpressure safety valve and the vacuum safety valve.
Symbol Description Applies to
WORKING WITH HEIGHTS,
Vacuum-overpressure safety valves and vacuum safety
valves that are mounted on a vertical or horizontal buffer
tank are usually placed a couple of metres from the
ground. In most cases while working on the safety
valves, the height exceeds 2,5 metres. This is why
working on the safety valves is considered working with
heights. It automatically means that a safety harness or
other adequate fall protection is mandatory.
- Vacuum-overpressure safety
valve on a vertical buffer tank;
- Vacuum safety valve on a
horizontal buffer tank.
HOT PARTS AND STEAM,
The nitrogen above the water in the vertical buffer tank
has a humidity of 100% and is able to reach a
temperature of 90°C. So the housing of a safety valve
and the steam that is released can be hot. During
disassembling a safety valve or the safety pallets there
is an increased risk of injury caused by combustion.
Take appropriate measures for this. Use fitting safety
apparel and consider for example the direction of the
wind.
- Housing of the vacuum-
overpressure safety valve on a
vertical buffer tank;
- The releasing of nitrogen by the
vacuum-overpressure safety
valve;
- Housing of the vacuum safety
valve on a horizontal buffer
tank.
ADDITIONAL EXPOSURE TO HOT STEAM,
In some cases the safety valve as an extra cover of
insulation material. Keep in mind that this enables the
hot steam to rise higher when the nitrogen is being
released.
- The releasing of nitrogen by the
vacuum-overpressure safety
valve which is covered with
additional insulation material.