EPT076596 Issue 1 – March 2022
13
Installation
The DPX3500 has been designed to remove and filter fume
containing potentially hazardous particulate and gases
generated during manufacturing processes. Such hazardous
substances are captured within a multistage filtration
system after which the filtered air is returned to the
workplace.
Fume Capture Methods
The fume is normally captured by 1 of 3 methods.
• Flexible arm/ Nozzle
• Enclosures
• Cabinets
General Guidelines for a successful installation
• Keep hose run length to a minimum
• Avoid sharp bends / turns in the ductwork
• Avoid multiple bends / turns in the ductwork
• Position the capture device as close as possible to
the marking point. (If used on high speed lines,
position the capture device slightly downstream).
For all aluminium applications, it is strongly recommended
to use flexible hose- or solid pipework, the material of which
must withstand at least a maximum operating temperature
of 500 °C.
The inner diameter of the flexible hose or solid pipe must
not exceed 75 mm to ensure sufficient particle
transportation velocity. Smaller diameters will also ensure a
sufficient particle transportation velocity but will increase
pressure losses and result in reduced filter life.
Make sure that the solid pipe has a wall thickness of at least
1.5 mm. Check whether, due to the environmental
conditions on site, corrosion must be taken into account
when selecting the pipe material. The flexible metal hose kit
that fulfils all requirements is available as a genuine Domino
article.
All cleaning processes during maintenance of the extraction
system should be performed with a dry cloth.
Surfaces with minor residues in the form of fine particles can
be considered cleaned.
When planning a fixed piping system, please consider
inspection openings allowing for the cleaning process of the
piping according to your own risk assessment.
Installation Guidelines:
• The length of hose runs should be as short as
reasonably possible.
• Hoses should be kept as straight as possible with
the least number of bends required.
• Any surplus hose should be cut off and not coiled
up.
• Hoses should be free from any kinks and should
also be free from any obstruction.
• When connecting a hose to a unit where the hose is
the same diameter, they should be pushed
together as close as possible before tightening the
rubber boot coupling (see below):
• When connecting a hose with a smaller diameter to
a unit, it should sit just inside the inlet spigot before
tightening the rubber boot coupling (see below):
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