Spectron Gas Control Systems GmbH
Description | 2
GES_BE56-2U_0720
5
2 Description
2.1 Intended use
The intended use of the Pressure control panel BE56-2U is the expansion of a gas from a gas
source and the distribution of the gas with adjustable outlet pressure.
Pressure control panels of type BE56-2U are suitable for flammable gases, non-flammable
gases, oxygen and additionally also for use with corrosive and toxic gases and gas mixtures up
to gas quality 6.0.
Purge gas purging is recommended when using corrosive or toxic gases.
The permissible gas types and pressure ranges are each specified on the label (see "
").
Pressure control panels with type code "56" are based on a two-stage pressure reduction of the
inlet pressure to the required outlet pressure. While two-stage pressure relief ensures an ex-
tremely constant outlet pressure throughout the entire inlet pressure range (from "full" gas cylin-
der to almost "empty" gas cylinder), with single-stage pressure reduction, the outlet pressure
can vary within a certain range.
The 2U pressure control panels are two-sided pressure control panels with a switching mechan-
ism (2U). The switching mechanism switches automatically from the side that is currently in op-
eration to the reserve side when the gas supply situation requires it. The lever position of the
switching mechanism indicates which side is the operational side and which the reserve side.
The pressure control panel is equipped with a process gas valve and an exhaust gas valve on
each side.
The equipment versions of the Pressure control panels without electrical components may be
used in an explosion hazard zone as they do not have separate ignition sources (ignition hazard
assessment according to DIN EN ISO 80079-36).
Pressure control panels with electrical components that are suitable for use in an explosion haz-
ard zone are marked on the label according to EU Directive 2014/34/EU.
To be able to use the Pressure control panels as intended, all persons working with it must
comply with the specifications of the relevant user manual.
The area in which hazards can occur when used as intended is the area around the Pressure
control panels. The danger zone changes depending on the system status and use.
2.2 Misuse
Any improper use constitutes misuse. Pressure control panels may only be used for the spe-
cified gases and in the specified pressure range. Pressure control panels with electrical com-
ponents without marking according to EU Directive 2014/34/EU may not be used in an explo-
sion hazard zone.
Furthermore, the following operating conditions are regarded as misuse:
– Use for gases in their liquid phase
– Failure to carry out inspection and maintenance work
– Pressurisation in reverse (opposite to the flow direction)
– Operation with gases that are not specified on the label
– Operation outside the permissible technical limit values
– Failure to heed and comply with any applicable legal regulations and other provisions
– Non-observance of the user manual
– Failure to heed the information on the label and in the product data sheet
