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As there is a connection between sound absorption and the formation of ice on the diaphragm
pump control system, the sound level cannot be reduced with a sound absorber as much as
would be desired [not < 70 db(A)].
See "Technical Description of Product B.6.50.80-P-GB", page
04 for more detailed information on the sound level.
The diaphragm pump may not be used without the sound absorbing components.
- The decision to wear ear protection depends on the operating pressure and the
resulting sound level.
MATERIAL SUCTION SYSTEM
ALL METAL PARTS IN CONTACT WITH THE SUCTION AREA
MATERIAL ARE MADE OF AUSTENITIC STAINLESS STEEL.
suction device
suction hose with a larger cross section.
Suction system characteristics are:
Electrically conductive, maximum permissible resistance 3
and leakage resistance to earth < 10
Suitable for use in hazardous locations.
The individual parts of the suction system are designed to withstand an excess pressure of
12 bar (- Suitable for suction heights of up to 8.5 m).
The suction hose and the suction sieve are resistant to the usual solvents in the surface
coating and silicone-free.
Minimum nominal diameter 25
The cross section of the suction line is so measured that
material with a kinematic viscosity of up to 750
mm²/s(cSt) can be sucked without difficulty by the
diaphragm pump. Higher viscosity can result in difficulties
ranging from a reduction in the suction performance to
interrupted suction, identifiable by an increasingly greater
fall in pressure during the change of direction (pulsating
pressure).
Fig. 2
6
.
6
Measures for improvement are:
keeping the suction line as short as
possible or a short
.
4
10
/m (tested to ISO 8031)
B.6.50.80-B-GB
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