Circor HOUTTUIN 216 Series, Оригинальное руководство по установке, эксплуатации и обслуживанию

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Product Description
50
216 Series Twin-Screw Pump -
Installation, Operation & Maintenance Manual
Shaft sealing with a mechanical seal
Precautions
WARNING:
The mechanical seal used in an EX- classified environment must be properly certified.
for the conditions of service.
CAUTION:
Running a mechanical seal dry even momentarily can cause seal failure and physical
injury. Never operate the pump without a reliable supply of liquid to the mechanical seal.
The mechanical seal must have an appropriate seal-flush system. Failure to do so will result in
excess heat generation and seal failure.
Cooling systems such as those for bearing lubrication and mechanical-seal systems must be
operating properly to prevent excess heat generation, sparks, and premature failure
Sealing systems that are not self-purging or self-venting, such as plan 23, require manual
venting prior to operation. Failure to do so will result in excess heat generation and seal
failure. Follow seal manufacturer's guidelines for proper seal installation procedures.
Seal lubrication is required
Seal faces must have liquid film between them for proper lubrication. If customer supplied
sources of liquid must be supplied to the mechanical seal, the pump GA or outline drawings
will identify the connections that need to be made and the type/quantity of liquid that must be
supplied.
How to prime the pump with the suction supply above the
pump
1. Slowly open the suction isolation valve.
2. Open the air vents on the suction and discharge piping, the casing, the seal chamber,
and the seal piping, until all air is vented and only the pumped fluid flows out. Note that
the air vents provided varies with the configuration of the product. Refer to the pump GA
or outline drawing for specific vent locations.
3. Close the air vents.
Start the pump
WARNING:
Risk of equipment damage, seal failure and breach of containment. Ensure all flush and
cooling systems are operating correctly prior to starting pump.