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9. APPENDIX
Cooler
Drawing Number
BOM
0.500 inch Standard
NX0500SA-STD
NX0500SA
0.625 inch Standard
NX0625SA-STD
NX0625SA
0.750 inch Standard
NX0750SA-STD
NX0750SA
0.750 inch PED
NX0750SA-PED
NX0750SA-P
8.8 Leak testing is recommended after assembly. Refer to end user specifications or
procedures. Alternately, individual units can be returned to Flowserve for refur-
bishment and testing.
8.9 The inspection should include the following hold points as a minimum:
• Visual inspection of the interior and exterior of the system on corrosion,
erosion, damages and cracking
• Random check of the wall thickness and verification against the design
thickness
• Random checking of coating (when applicable)
Maintenance of the seal cooler shall be limited to touch-up of coating and cleaning
methods that do not affect the mechanical integrity of the system.
Under no circumstances should the seal cooler be opened while it still contains any
hazardous materials or when the internal pressure is above the local atmospheric
pressure. Before opening the equipment it must be brought to atmospheric pressure
by venting it to a safe location.
