Flowserve SL-5000 Seals - Manual (Page 4)

4
Operational Recommendations
3 SL-5000
3.1 Do not start the equipment dry. Never start up the equipment
without properly venting the pump of air.
3.2 If the seal runs hot, check for proper seal setting, seal housing
dimensions, and check the flush lines for obstructions. Do not
allow the equipment to run for any extended time if the seal gets
hot or squeals.
4 SL-5200
Figure 2 contains guidelines for buffer fluid systems which can be
used with the SL-5200 double seal. Figure 3 is a suggested piping
arrangement for the SL-5200 with circulating feature and supply tank
with cooling coil. For other sealing liquid systems using Dura Circulators,
external flushing or thermal convection, refer to the assembly drawing or
consult Flowserve, Flow Solutions for instructions.
4.1 Always start up the sealing liquid supply before starting
equipment. Be sure that the sealing liquid pressure is greater
than the maximum pressure of the process fluid acting on the
seal chamber.
4.2 Seal liquid pressure must not exceed the pressure velocity rating
of the seal design and materials of construction.
4.3 Be sure cooling water to supply tank or circulator is on.
4.4 Never start up equipment dry. Properly vent all air.
4.5 If the seal runs hot or squeals, check the seal liquid flow between
the seals and check the seal housing dimensions to insure that the
seal is not over-compressed.
For special problems encountered during installation, contact your
nearest Flowserve Sales and Service Representative or Authorized
Distributor.