Flowserve NM - Manual (Page 29)

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09
Page 29 of 48
32 NM
40 NM
50 NM
65 NM
80 NM
150 NM
100 NM
200 NM
The stuffing box includes a thermal barrier, which
ensures the cooling of the pumped liquid before it
reaches the packing.
The flows of cooling water, inlet temperature 20 °C
are given for a pumped water temperature of 140
°C.
6.2.6 Internal coating
If the pump has an internal coating, this coating
must be inspected periodically. Any wear or cracks
of the coating found must be immediately repaired.
Failure to do this may lead to accelerated wear of
the coating during operation and corrosion of the
exposed base metal, depending on the material and
pumped liquid. Special attention must be paid to the
coating edges. Any loss of coating material is
considered to be normal wear and tear on the pump
and is not considered as warranty. Flowserve has
applied the coatings according to the supplier's
instructions but will not be held responsible for
coating wear or cracks that may develop over time.
6.3 Spare parts
6.3.1 Ordering of spares
Flowserve
keeps records of all pumps that have
been supplied. When ordering spares the following
information should be quoted:
1) Pump serial number
2) Pump size.
3) Part name
4) Part number
5) Number of parts required.
The pump size and serial number are shown on the
pump nameplate.
To ensure continued satisfactory operation,
replacement parts to the original design specification
should be obtained from Flowserve. Any change to
the original design specification (modification or use
of a non-standard part) will invalidate the pump’s
safety certification.
6.3.2 Storage of spares
Spares should be stored in a clean dry area away
from vibration. Inspection and re-treatment of
metallic surfaces (if necessary) with preservative are
recommended at 6 monthly intervals.
6.4 Recommended spares and
consumable items
102-122-152-202-252-352 NM :
[2210] - [2250] - [1500] - [4130] - [4590] - [4610] -
[4610] - [3011] - [3012]
32-40-50-65-80-100-125-150-200-201 NM
:
[1500] - [2250] - [3011] - [3012] - [3312] - [4130] -
[4590] - [4610]
a) Destroy all the gaskets after dismantling, replace
them when reassembling.
b) IT IS RECOMMENDED THAT
BEARINGS ARE NOT REUSED AFTER ANY
REMOVAL FROM THE SHAFT.
c) After serving during two years, replace the gland
packing.
6.5 Disassembly
Refer to section 1.6, Safety, and section 6
Maintenance , before dismantling the pump.
Before dismantling the pump for
overhaul, ensure genuine Flowserve replacement
parts are available. Refer to sectional drawings for
part numbers and identification.