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Installation guidelines
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
discharge 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).
WARNING
DANGER OF BURSTING!
An incorrectly dimensioned discharge silencer can burst or result in damage to the compressor due to
the temperature.
‣
When selecting and designing the discharge silencer, make sure that it features a minimal pressure
loss.
‣
The silencer must be suitable for the pressures used.
Installing the discharge silencer (example)
NOTE
The following is an exemplary description of the
installation of a discharge silencer.
‣
Attach the discharge silencer (1) with the seal (3)
to the connection flange of the screw compressor
(2) using screws (4), plain washers (6) and a split
washer (5).
‣
Initially, hand‑tighten the screws (4) diagonally,
subsequently fully tighten diagonally to the
required tightening torque.
Tightening torque (M12 A2-70): 65 Nm
CAUTION
HOT SURFACES!
During operation, the screw compressor and discharge silencer are very hot. There is a risk of burning.
‣
Appropriate measures to screen the hot surfaces must be taken by the installation manufacturer.
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47757783 A
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