Flowserve MW-200 Series - Manual (Page 7)

7
5 Seal Operation
To assure reliable operation of this sealing product, the following
operating guidelines should be observed.
5.1 Maintain the liquid barrier fluid pressure both while the seal is
operating and when the equipment is on standby.
5.2 Do not exceed the maximum barrier pressure specified for the
seal design. The barrier pressure should be 2 bar (25 psig) above
the operating vessel pressure.
5.3 Do not exceed the maximum vessel pressure specified for the
application. This could reduce the recommended vessel to barrier
differential pressure which could adversely affect seal performance.
5.4 Do not exceed the maximum vessel temperature specified for
the application. This could exceed the temperature limits of the seal
materials of construction applied to the application.
5.5 Do not exceed the seal material corrosion limits. This seal was
designed for the application shown on the seal assembly drawing.
Do not exceed the limits of the material alloys and elastomers
supplied in its construction.
For any problems encountered during installation and/or operation of
this product, contact your nearest Flowserve Sales and Service
Representative or Authorized Distributor.
6 Repair
This product is a precision sealing device. The design and dimension
tolerances are critical to seal performance. Only parts supplied by
Flowserve should be used to repair a seal. To order replacement parts,
refer to the part code and B/M number. A spare backup seal should be
stocked to reduce repair time.
When seals are returned to Flowserve for repair, decontaminate the
seal assembly and include an order marked "Repair or Replace." A
signed certificate of decontamination must be attached. A Material
Safety Data Sheet (MSDS) must be enclosed for any product that
came in contact with the seal. The seal assembly will be inspected and,
if repairable, it will be rebuilt, tested, and returned.