These flow limits are valid unless other data is available in the curves or data sheets:
Q
min
= 0.1 x Q
BEP
Short-term operation
Q
min
= 0.3 x Q
BEP
Continuous operation
Q
max
= 1.2 x Q
BEP
Continuous operation
Q
BEP
= Flow in efficiency optimum
Permitted number of starts
Do not start the pump more than the number of times shown in this chart:
1
10
100
1
10
100
1000
Motor power [kW]
Maximum permitted
starts
per
hour
For pumps that use electric motors, do not start the motor more than the number of times listed in the
motor operation instructions. If two different numbers are shown, the lower number of starts is the limit.
6.1.7 Pump operation precautions
General considerations
WARNING:
•
Risk of serious personal injury or property damage. Dry running may cause rotating parts
within the pump to seize to non-moving parts. Do not run dry.
•
Risk of explosion and serious physical injury. Do not operate pump with blocked system
piping or with suction or discharge valves closed. This can result in rapid heating and va-
porization of pumpage.
Operation at reduced capacity
WARNING:
•
Risk of breach of containment and equipment damage. Excessive vibration levels can
cause damage to bearings, stuffing box, seal chamber, and/or mechanical seal. Observe
pump for vibration levels, bearing temperature, and excessive noise. If normal levels are
exceeded, shut down and resolve.
•
Risk of equipment damage and serious physical injury. Heat build-up can cause rotating
parts to score or seize. Observe pump for excessive heat build-up. If normal levels are
exceeded, shut down and resolve.
6.1 Commissioning, Startup, Operation, and Shutdown
30
ICB Installation, Operation and Maintenance Instruction
Содержание Goulds Pumps ICB
Страница 1: ...Installation Operation and Maintenance Instruction ICB ...
Страница 2: ......