Flowserve MN - Manual (Page 9)

MN USER INSTRUCTIONS ENGLISH 71569189 11/04
Page 9 of 49
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1.8.1 Typical sound levels for MN pumps
Pump noise level is dependent on a number of factors such as: the type of motor fitted, the operating capacity,
pipe work design and acoustics of the building. Typical sound pressure levels measured in dB, and are A-
weighted.
Motor
Frame
Size.
NEMA
RPM Motor Only
Sound
Pressure
(dBA )
Pump only
Sound
Pressure
(dBA )
Combination
of pump and
motor
Sound
pressure
(dBA)
1800 60.0 65 70 180
1200 & slower 55.0 55 63
1800 60.0 65 69 210
1200 & slower 55.0 56 63
1800 70.0 77 77 250
1200 & slower 60.0 68 69
1800 70.0 77 77 280
1200 & slower 60.0 68 69
1800 65.0 77 77 320
1200 & slower 65.0 69 69
1800 65.0 77 78 360
1200 & slower 65.0 68 69
1800 70.0 77 78 400
1200 & slower 65.0 68 69
1800 70.0 77 78 440
1200 & slower 65 68 69
Sound pressure values indicated for the motor are extracted from typical motor manufacturer’s data at no load
conditions and are not guaranteed. They may vary depending on the type of motor, enclosure used, and the
manufacturer. The sound pressure values for the pump are estimated levels in free field measured 1 meter from the
nearest major pump surface and at a height of 1.5 meters above the floor. using speed, flow rate, motor horsepower,
number of impeller vanes, and other variables. Therefore values indicated are for reference only and could exceed
the estimated values by as much as 8~10 dBA depending upon factors such as installed conditions, building
acoustics, foundation, piping, operating conditions, surrounding machinery. It is highly recommended to take actual
field measurement of sound pressure values, apply enclosures and safety measures mandated by the local
authorities and prevailing safety regulations. For all other pump and motor frame size combinations, the sound
levels have to measured and safety measures have to be adopted.
For units driven by equipment other than electric motors or units contained within enclosures, see the
accompanying information sheets and manuals.
1.9 Specific machine performance
For performance parameters see section 1.5, Duty
conditions . When the contract requirement specifies
these to be incorporated into User Instructions these
are included here. In cases where performance data
has been supplied separately to the purchaser these
should be obtained and retained with these User
Instructions, if required.
2 TRANSPORT AND STORAGE
2.1 Consignment receipt and unpacking
Immediately after receipt of the equipment it must be
checked against the delivery and shipping
documents for its completeness and that there has
been no damage in transportation.
Any shortage and or damage must be reported
immediately to Flowserve Pump Division and
received in writing within one month of receipt of the
equipment. Later claims cannot be accepted.
Check any crate, boxes, and wrappings for any
accessories or spare parts that may be packed
separately with the equipment or attached to the
sidewalls of the box or equipment.
Each product has a unique serial number. Check
that this number corresponds with that advised and
always quote this number in correspondence as well
as when ordering spare parts or further accessories.