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Installation guidelines
3.6.5
Installing the intake silencer and air filter
The air filter and combined intake silencer (with integrated air filters) for the compressor available from
GHH RAND must be suitably dimensioned with regard to the noise emission and filter capacity of the
application on the silo vehicle.
When selecting air filters or combined intake silencers not supplied by GHH RAND, observe the following:
·
Overall degree of separation η:
η SAE roughly ≥ 99.5 %
Rated flow in accordance with the intake volume flow of the respective type of screw compressor.
·
A paper filter should be selected as the filter material.
NOTICE
FILTER MATERIAL AND FILTER DESIGN UNSUITABLE!
Unsuitable filter material, as well as an insufficiently dimensioned filter can result in
destruction of the screw compressor.
‣
Only use paper filter with the specified degree of separation.
‣
The max. permitted intake negative pressure is 65 mbar.
‣
The suction silencer/filter must be reliably protected against ingress of water (e.g. spray) and greater
quantities of dirt.
NOTICE
INCORRECT INSTALLATION POSITION OF THE AIR INTAKE!
Damage due to the temperature and contamination of the goods to convey can occur if the air intake
is located in the area of warm air or the discharge of hot exhaust gases.
‣
The air intake must not be located in the area of warm air or emitted hot exhaust fumes.
‣
If necessary, the exhaust system of the vehicle or the installation location of the air filter must be
moved.
3.6.6
Mounting the discharge silencer
CAUTION
NOISE GENERATION!
Excessive noise exposure can lead to health problems.
‣
A discharge silencer is used to reduce the noise level. Further measures for reducing the noise level
on the system side are recommended.
‣
During operation, always wear suitable ear protection.
If using a discharge silencer with damping material, make sure that the damping material cannot ingress
into the conveying air.
Damping material made from stainless steel ensures this long-term. GHH RAND supplies effective dis-
charge silencers without damping material.
Install the discharge silencer directly on the pressure joint.
The seal between the discharge silencer and compressor must be temperature-resistant (min. 400 °C).
The nominal width of the exhaust must not be reduced (increased noise emission, pressure loss).
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