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EN
APPROPRIATE USE
Sound absorbers serve for noise reduction in pneumatic
equipment or pneumatic components, cylinders, valves
etc.. After work is performed in a closed system, large
quantities of air are blown off into the atmosphere. Rapid
venting and release to atmospheric pressure with simulta-
neous sound silencing is achieved by the optimal arrange-
ment of the felt disks and perforated plates (throttle and
absorption principle).
Features Type 391:
high blow-off capacity, short exhaust time and strong
silencing effect. This multi-chamber muffler is designed for
noise reduction of continuous volume flows.
!
This device must only be used for the purpose mentioned
above, for which it has been specifically developed. Any
use not in line with the intended purpose is considered
as improper. The manufacturer / supplier does not
accept any responsibility for improper use! The risk is
solely borne by the user
SAFETY INSTRUCTIONS
The operator/user should become familiar with the func-
tioning, installing and using the device.
Never allow untrained or unauthorized persons to operate
the tool. Children may never operate this tool. Juveniles
and persons with limited mental and physical abilities
are only allowed to use this tool after instruction and only
under supervision.
Respect the valid laws and regulations of health and
occupational safety as well as other hazard informations
for your own security and the one of other people. Pay
attention to the manufacturer`s informations concerning
operation and security.
Check all connections for a good fit, tightness and proper
functioning.
Make sure there are no visible damages on the tool.
Do not use the tool with a malfunction or when it has been
damaged.
Pay attention to the max. operating pressure, it must never
be exeeded.
Avoid shocks of the sound absorber.
Avoid blockage of the felt disks by oil or particles, since
this can lead to increased back pressure and thus to
overloading of the flange. Physical hazard!
The device must not be alienated or modified.
4
Installation and safety instruction:
It is possible to exhaust in a harmless direction by the axial
air outlet.
HAZARD WARNINGS
!
This product and working with compressed air can be
dangerous if the safety guidelines are not respected.
Wrong operating and disregard of safety guidelines can
result in grievous bodily harm and property damages!
INSTALLATION
The damper can be mounted in any position. Connection
must be axial.
TECHNICAL DATA
Medium:
Max. back pressure
(nominal pressure):
Operating temperature:
Mounting position:
Materials:
Housing
Perforated plates,
connection pipe
Filter plates
Cap
** Please consider ambient air quality at temperatures under
+2 °C! To ensure a save operation of valve an muffler, it is
important that the air is dry enough to prevent the muffler
from icing!
Compressed air
6 bar
-10 °C up to +90 °C *
any, connection axial
zinc-plated steel
DC03-A
zinc-plated steel
polyester felt, resin bon-
ded, age resistant
PVC, black, 70° Shore
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