Flowserve Mechanical Seal and Seal Support System Storage - Manual (Page 3)

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Seal Support Systems -
General Note
Seal support systems require careful handling and storage to ensure reliable operation. If systems are
stored for an extended period of time before installation or commissioning, the storage conditions may
adversely affect performance once it is put into operation. For this reason, the user must ensure the
storage conditions will meet the recommendations stated below.
This guideline applies to Flowserve seal support systems that are not being installed upon receipt.
Flowserve will not accept any warranty claims for failures as a result of inadequate storage.
2 Storage of Systems in Their Original Packaging
Plan 52, 53A, 53B and related equipment must be transported and stored in the unopened, original
shipping container. The shipping container is also intended for use in long term storage. Upon receiving
the seal support system, the user is responsible for inspecting the container for any signs of damage,
and the corrosion indicator. If the container has been damaged or the corrosion indicator shows signs
of rust, the container should be opened and inner poly layer inspected for penetration. The container
and desiccant should also be replaced. This process should be repeated every three months during time
of storage.
If the container is opened and the system is removed for inspection, the system should be repackaged
and resealed in its original packing material and container. Systems that have been dropped or have
otherwise been subjected to impacts during transport must not be installed. An inspection by Flowserve
or its appointed representative is strongly advised.
While the container is suitable to protect the system from damage due to normal handling, it is not
designed to protect from handling abuse or poor storage conditions. The system must also be stored in
a clean, dry stable environment. The preservation instructions of OEM equipment used in these systems
must also be considered and the more stringent requirements shall apply.
Environmental guidelines for seal support systems:
• Indoor storage only
• Temperature range 4°C to 37°C (40°F to 100°F). Avoid large fluctuations.
• Low humidity, less than 65% RH
• Atmosphere free from rain, dust, steam, chemicals, oils, radiation and ozone
• Storage surface free from impact and vibrations
• No threat of water reaching above container bottom support (typically 3 ½ inches)
• No storage in the vicinity of where steel is processed or other dust/grit raising activities
such as sandblasting are performed
General instructions for long term storage:
• Before storage, the unit shall be thoroughly drained, dried and cleaned internally and externally.
• All openings shall be closed using appropriate non-corroding closures.
• All valves shall be closed, but not too tight for gate and globe valves.
• All paint damage shall be repaired.
• All unprotected/uncoated external carbon steel surfaces shall be treated with corrosion-
preventing grease; repaired paint damage shall receive extra attention.
• If the unit contains a bladder type accumulator, the bladder of the accumulator shall be
nitrogen charged. If storage is expected to exceed 6 months, the nitrogen pressure shall be
brought to a minimum of 0.2 barg (3 psig) and a maximum of 0.5 barg (7 psig).
• If the equipment is to be preserved with the system installed, the preserving medium must
not impair the function of the system. For example, avoid fouling and/or attacking elastomers
and other components.