ITT Goulds Pumps XHD, Инструкция по установке, эксплуатации и обслуживанию

Страница: 42 / 160

Commissioning, Startup, Operation, and Shutdown
XHD Installation, Operation, and Maintenance Manual 40
Commissioning, Startup, Operation, and
Shutdown
Preparation for startup
WARNING:
• Risk of serious physical injury or death. Exceeding any of the pump operating limits (e.g. -
pressure, temperature, power, etc.) could result in equipment failure, such as explosion,
seizure, or breach of containment. Assure that the system operating conditions are within
the capabilities of the pump.
• Risk of death or serious injury. Leaking fluid can cause fire and/or burns. Ensure all
openings are sealed prior to filling the pump.
• Breach of containment can cause fire, burns, and other serious injury. Failure to follow
these precautions before starting the unit may lead to dangerous operating conditions,
equipment failure, and breach of containment.
• 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
vaporization of pumpage.
• The impeller clearance setting procedure must be followed. Improperly setting the
clearance or not following any of the proper procedures can result in sparks, unexpected
heat generation, and equipment damage.
• When installing in a potentially explosive environment, make sure that the motor is
properly certified and that all equipment is installed in accordance with instructions for that
environment.
• Risk of breach of containment and equipment damage. Ensure the pump operates only
between minimum and maximum rated flows. Operation outside of these limits can cause
high vibration, mechanical seal and/or shaft failure, and/or loss of prime.
• Avoid mechanical seal failure or pump seizure by:
• increasing speed at startup to at least 65% of rated speed within 5 seconds and
• decreasing speed at shutdown from 65% of rated speed to 0 within 5 seconds
WARNING:
• Running a pump without safety devices exposes operators to risk of serious personal
injury or death. Never operate a unit unless appropriate safety devices (guards, etc.) are
properly installed.
• Failure to disconnect and lock out driver power may result in serious physical injury or
death. Always disconnect and lock out power to the driver before performing any
installation or maintenance tasks.
• Electrical connections must be made by certified electricians in compliance with all
international, national, state, and local rules.
• Refer to driver/coupling/gear manufacturer's installation and operation manuals (IOM)
for specific instructions and recommendations.
• Risk of seizure, breach of containment, or explosion. Ensure balance line is installed and
piped back to either the pump suction or suction vessel. This prevents rapid vaporization of
the pumped fluid.