Goulds Pumps 3355 - IOM - Manual (Page 27)

Commissioning, Startup, Operation, and Shutdown
Commissioning, Startup, Operation, and
Shutdown
Preparation for startup
DANGER:
Avoid death or serious injury. Explosion and/or seizure of pump can cause fire and/or burns. Never
operate pump past the pressure and temperature limits shown on the nameplate on the pump.
WARNING:
• Any pressure-containing device can explode, rupture, or discharge its contents if it is over-
pressurized. Take all necessary measures to avoid over-pressurization.
• Failure to follow these precautions before you start the unit will lead to serious personal injury and
equipment failure.
• Do not operate the pump below the minimum rated flows or with the suction or discharge valves
closed. These conditions can create an explosive hazard due to vaporization of pumped fluid and
can quickly lead to pump failure and physical injury.
• Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Operating the pump above
maximum rated flow shown on the pump curve leading to an increase in horsepower and vibration
along with an increase in NPSHr resulting in mechanical seal and/or shaft failure and/or loss of
prime.
• Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Speed of pump must reach
2000 rpm for 2 pole motors and 1000 rpm for 4 pole motors within 10 seconds or an increase in
vibration and rotor deflection and decrease in rotor stability leading to mechanical seal and/or shaft
failure and/or pump seizure can occur.
• Never operate the pump without the coupling guard correctly installed.
• The coupling used in an ATEX classified environment must be properly certified.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• Electrical connections must be made by certified electricians in compliance with all international,
national, state, and local rules.
• Refer to driver/coupling/gear manufacturers installation and operation manuals (IOM) for specific
instructions and recommendations.
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
• Make sure to properly lubricate the bearings. Failure to do so can result in excess heat generation,
sparks, and premature failure.
• Avoid death or serious injury. Explosion and/or seizure of pump can cause fire and/or burns. Assure
balance line is installed and either piped to the pump suction or back to the suction vessel to avoid
vaporization of pumped fluid.
DANGER:
Avoid death or serious injury. Leaking fluid can cause fire and/or burns. Assure all openings are sealed
off prior to filling pump.
Precautions
NOTICE:
• Verify the driver settings before you start any pump.
You must follow these precautions before you start the pump:
• Flush and clean the system thoroughly to remove dirt or debris in the pipe system in order
to prevent premature failure at initial startup.
Model 3355 Installation, Operation, and Maintenance Manual 25