OPERATION
GENERAL CONSIDERATIONS
Always vary capacity with valve in discharge line.
NEVER
throttle flow from suction side.
Driver may overload or magnets de-couple if pumpage
specific gravity (density) is greater than originally assumed,
or rated flow rate is exceeded.
Always operate the pump at or near the rated conditions to
prevent damage resulting from cavitation or recirculation.
$
CAUTION
Do not operate above rated temperature range of
magnets as this will weaken or ruin the magnets.
!
Service temperature in an ATEX classified environ-
ment is limited by
Table 1
in the
Safety
section.
Table 4
Temperature Ratings
Group
Size
Rated Temperature
XS
1x1.5-5
250° F (121° C)
S
All
250° F (121° C)
M
All
250° F (121° C)
L
All
250° F (121° C)
OPERATING AT REDUCED CAPACITY
s
!
WARNING
Do NOT operate pump below minimum rated flows or
with discharge valve closed. These conditions may
vaporize liquid creating an explosive hazard due to
confined vapor under high pressure and temperature.
SUCTION VALVE CLOSED / DRY RUN
OPERATION
s
!
WARNING
Do not operate pump with suction valve closed.
Operating pump after suction valve closed will cause
wear of thrust and radial bearings and pump failure.
Operating pump with suction valve closed may
vaporize liquid creating an explosvie hazard due to
confined vapor under high pressure and temperature.
$
CAUTION
Always vary capacity with regulating valve in the
discharge line. NEVER throttle flow from the suction
side.
$
CAUTION
Driver may overload if the pumpage specific gravity
(density) is greater than originally assumed, or the
rated flow rate is exceeded.
$
CAUTION
Always operate the pump at or near the rated
conditions to prevent damage resulting from cavitation
or recirculation.
$
CAUTION
Damage occurs from:
1. Increased vibration levels - Affects bearings.
2. Increased radial loads - Stresses on shaft and
bearings.
3. Heat build up - Vaporization causing rotating parts
to score or seize.
4. Cavitation - Damage to internal surfaces of pump.
Goulds recommends the use of a power monitor to prevent
pump damage from systems which have the potential for
dry run operation. Refer to Appendix for information on
power monitors.
DRAINING TANKS / DRY RUN
OPERATION
s
!
WARNING
After pump has drained tank, it should be shut down
immediately. Operating pump after the tank has been
drained of liquid will cause wear of thrust and radial
bearings and pump failure. Operating pump after
tank has been drained of liquid may vaporize liquid
creating an explosive hazard due to confined vapor
under high pressure and temperature.
Goulds recommends the use of a power monitor to prevent
pump damage from systems which have the potential for
dry run operation.
DISCHARGE VALVE CLOSED
s
!
WARNING
Do not operate pump with discharge valve closed.
Operating pump with a closed discharge valve may
vaporize liquid creating an explosive hazard due to
confined vapor under high pressure and temperature.
Goulds recommends the use of a power monitor and/or a
minimum flow by-pass line to prevent pump damage from
systems which have the potential for closed discharge operation.
3298 Family Rev. 4/07
29
4
Содержание Goulds Pumps V 3298
Страница 6: ...6 3298 Family Rev 4 07 ...
Страница 26: ...26 3298 Family Rev 4 07 ...
Страница 32: ...32 3298 Family Rev 4 07 ...
Страница 38: ...38 3298 Family Rev 4 07 ...
Страница 106: ...SP 3298 S Group Frame Mounted Sizes 1 x 11 2 6 2 x 3 6 106 3298 Family Rev 4 07 SP3298 S Group Frame Mounted Version ...
Страница 112: ...112 3298 Family Rev 4 07 ...
Страница 115: ...3298 Family Rev 4 07 115 7 ...
Страница 116: ...INTERCHANGEABILITY 3298 XS GROUP 116 3298 Family Rev 4 07 ...
Страница 117: ...INTERCHANGEABILITY 3298 S GROUP 3298 Family Rev 4 07 117 7 ...
Страница 118: ...INTERCHANGEABILITY 3298 M GROUP INTERCHANGEABILITY 3298 M GROUP SIZE 1 x 3 8 ONLY 118 3298 Family Rev 4 07 ...
Страница 119: ...INTERCHANGEABILITY 3298 L GROUP 3298 Family Rev 4 07 119 7 ...
Страница 120: ...INTERCHANGEABILITY SP 3298 S GROUP 120 3298 Family Rev 4 07 ...
Страница 121: ...INTERCHANGEABILITY V 3298 S GROUP 3298 Family Rev 4 07 121 7 ...
Страница 122: ...INTERCHANGEABILITY V 3298 M GROUP 122 3298 Family Rev 4 07 ...
Страница 124: ...124 3298 Family Rev 4 07 ...
Страница 125: ...APPENDIX I 3298 HYDRAULIC COVERAGE CHARTS 3298 Family Rev 4 07 125 8 ...
Страница 126: ...3298 HYDRAULIC COVERAGE CHARTS 126 3298 Family Rev 4 07 ...
Страница 127: ...SP 3298 HYDRAULIC COVERAGE CHARTS 3298 Family Rev 4 07 127 8 ...
Страница 128: ...SP 3298 HYDRAULIC COVERAGE CHARTS 128 3298 Family Rev 4 07 ...
Страница 129: ...V 3298 HYDRAULIC COVERAGE CHARTS 3298 Family Rev 4 07 129 8 ...
Страница 130: ...V 3298 HYDRAULIC COVERAGE CHARTS 130 3298 Family Rev 4 07 ...
Страница 134: ...134 3298 Family Rev 4 07 ...
Страница 136: ...IMPELLER TRIM PROCEDURE 136 3298 Family Rev 4 07 Fig III 2 Group S M Fig III 3 Group L ...
Страница 142: ...142 3298 Family Rev 4 07 ...