Flowserve NMD - Manual (Page 12)

NMD, NMAD USER INSTRUCTIONS ENGLISH 71576436 - 11/09
Page 12 of 40
2.4 Storage
Store the pump in a clean, dry
location away from vibration. Leave piping
connection covers in place to keep dirt and other
foreign material out of pump casing. Turn pump at
intervals to prevent brinelling of the bearings and
the seal faces, if fitted, from sticking.
Do not store pumps starting on the fan guard.
The pump may be stored as above for up to 6
months. Consult Flowserve for preservative
actions when a longer storage period is needed.
2.5 Recycling and end of product life
At the end of the service life of the product or its
parts, the relevant materials and parts should be
recycled or disposed of using an environmentally
acceptable method and local regulations.
If the product contains substances which are
harmful to the environment, these should be
removed and disposed of in accordance with
current regulations. This also includes the liquids
and or gases in the "seal system" or other utilities.
Make sure that hazardous substances or
toxic fluid are disposed of safely and that the
correct personal protective equipment is used. The
safety specifications must be in accordance with
the current regulations at all times.
3 PUMP DESCRIPTION
3.1 Configurations
The NMD or NMAD type pump is a vertical, multi-
stage, simple suction and radial joint plan pump.
This pump is designed for the pumping of cold
water or all clear liquids which are not solid and
liquid mixtures, corrosive, abrasive or explosive
when in contact with the pump motor unit and its
working parts (Important: for other liquids consult
FLOWSERVE for preliminary advice).
•
The modular design (2 hydraulics by pump
type, number of stages variation) enables an
accurate pump adjustment to the required
operating conditions
•
Guiding bush in suction casing
•
Semi-flexible coupling: NMD
•
Removable rigid coupling: NMAD
•
Standardized motor
The pump must be stored in a non-explosive,
ventilated location, sheltered from bad weather,
dust and vibrations.
The reliability of the delivered machine can only be
ensured if it is used according to the conditions
given in this manual. The maximum values
specified in this manual must never be exceeded.
•
Maximum working pressure at discharge:
- 102 NMD - 102 NMAD ...................... 25 bars
- 122 NMD - 122 NMAD ...................... 25 bars
- 152 NMD - 152 NMAD ...................... 30 bars
- 202 NMD - 202 NMAD ...................... 35 bars
- 252 NMD ........................................... 40 bars
•
Maximum working pressure at suction
............................................................. 10 bars
.......................................16 bars for 252 NMD
•
Maximum pumped fluid temperature
- Gland packing ................................... 105 °C
- Mechanical seal ................................ 80 °C
•
Minimum pumped fluid temperature.... -10 °C
•
Maximum solid suspension ................. 50 g/m
3
•
Density................................................. 1
•
Viscosity .............................................. 1 mm²/s
•
Frequency ........................ 50 Hz (1470 min
-1
)
•
Maximum number of stages
- 102 NMD....9 stages - 102 NMAD....9 stages
- 122 NMD....6 stages - 122 NMAD....6 stages
- 152 NMD....6 stages - 152 NMAD....5 stages
- 202 NMD....4 stages - 202 NMAD....3 stages
- 252 NMD....3 stages
The maximum speed is shown on
the pump nameplate.