General Information - Sundstrom SR 99 Gebrauchsanleitung

1.

General information

2. Applications
3. Description
4. Use
5. Filter change
6. Cleaning
7. Warnings
8. Technical data
9. Components
1. General information
Breathable air must meet at least the following purity
requirements:
• the impurities must be maintained at a minimu m, and must never
exceed the hygienic limit value.
• the content of mineral oil must be so low that no smell of oil will
be detectable (the odour limit is around 0.3 mg/m
• the dew point of the air must be so low that no water will be
precipitated out and no freezing will occur inside the equipment.
For further particulars of breathable air, see EN 132:1998, EN
12021:1998 and possibly other national regulations.
2. Applications
The compressed air filter SR 99 is used for converting ordinary
compressed air into clean, breathable air. It is also suitable whenever
clean air is needed for pneumatic instruments and tools.
3. Description. Fig. 1
The main components of the compressed air filter SR 99 are the
regulator with pre-collector (2), drain bowl (3) and filter (9, 10).
Coarser particles (oil, water, dirt) are removed by centrifugal separa-
tion in the pre-collector. After the pre-collector, the air flows through
the filter, in which even very small particles, as well as gases,
vapours and odours, are removed. The filter is a replaceable filter
element consisting of a central activated carbon filter section (9),
surrounded by two particle filters (10).
4. Use. Fig. 1
When the filter is used to its maximum capacity, i.e 3 connected
users the available compressor capacity must be at least 900 l/
min. The consumption of any tools connected to this system must
be added to the above values.
The compressor air intake must be located so that there will be no
risk of polluted air being drawn into the system.
• The filter has two outlets (12), one of which is plugged prior to
delivery. Fit the safety coupling supplied.
• The inlet thread (1) of the filter is 1 /2" BSP female. Fit a suitable
coupling/nipple.
• The filter drain is opened automatically when the air supply is
shut off.The drain can also be opened manually (Fig. 2). The filter
should be drained once per working shift.
• The filter element is fitted prior to delivery. Note the date on the
label at the outside of the filter housing to be enable you to keep
track of the date when the filter should be changed.
• The SR 99 is equipped with keyhole mountings for mounting it
on a wall, but it can also be stood on a suitable surface.
Compressed air filter SR 99
).
3
5. Filter change
Under normal operating conditions, the filter element has a useful
life of around six months. However, the useful life may vary widely,
depending on the condition of the compressed air system and the
air flow rate through the filter. The condition of the filter element
can be assessed by weighing. The original weight is shown on the
filter element. If the weight has increased by about 100-150 grams,
the filter should be changed. If the smell or taste of the impurities
become detectable, the filter should immediately be changed:
• Shut off the air inlet.
• Press in the ring on the underside of the drain valve to depres-
surize the filter. Fig. 2.
• Loosen the hose between the regulator and filter lid by pushing
the red sleeve on the coupling and disconnect the hose from the
lid. Fig 3.
• Unscrew the knobs of the filter housing and remove the lid. Fig 4.
• Remove the used filter element. Fig 5. Clean and wipe if necces-
sary.
• Check the seals and change if they are damaged. Fig 6. Two
seals (A and D) seals towards the filter housing (C). Seal (E) seals
against the clean side of the filter element (B) towards the outlet.
• Mount the new filter element. This has identical ends and can
be fitted either way round. Fig. 6.
Then assemble the filter:
• Refit the cover. Fig. 4.
• Connect the hose between the control valve and filter lid by
pushing the hose into the connector. Fig 3.
• Check that the pads on the cover and end caps fit into their
grooves. Fig. 7.
• Tighten the knobs alternately by hand until the lid meets the filter
housing.
Dispose of used filters in an appropriate manner, observing the
relevant rules and instructions.
6. Cleaning
Clean the outside of the filter as necessary, using soapy water and
a sponge or brush. The filter can also be blown clean with the com-
pressed air or flushed with water. The regulator with pre-collector
and drain bowl should preferably be cleaned in conjunction with
changing the filter element:
• Shut of the air inlet.
• Push the ring at the bottom of the pre-collector to depressurize
the filter. Fig 2.
• Remove the guard. Slide the black locking device down and turn
the guard anti-clockwise (bayonet mounting) (Fig. 8).
• Remove the drain bowl. Push it upwards and turn it anti-clock-
wise (bayonet mounting). Wash the bowl in hot water (not solvent)
at a maximum of 60 °C (Fig. 9).
• Remove the pre-collector element by turning it anti-clockwise
(Fig. 10).
• Blow the parts clean with compressed air. Check that the drain
outlet is not obstructed.
• Assemble the regulator with pre-collector. Take great care to
ensure that the guard is in its locked position.
EN
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