Flowserve SLM-6000 - Manual (Page 5)

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3.8 If the seal is fitted with quench ports, orient the ports as illustrated in Figure 6.
Quench Inlet
Quench Port Orientation Figure 6
Quench Outlet
Check Seal Chamber Face Runout Figure 7
Maximum Acceptable Runout
0.001 mm per mm (0.001" per inch)
of indicated diameter
4.2 Seal chamber concentricity should be less than 0.38 mm (0.015").
See Figure 8. Seal life varies with alignment. Poor shaft alignment can reduce
seal life.
4 Wet-Side (Impeller-Side) Installation
The following steps describe installation of the seal cartridge mounted on the wet,
or impeller, side of the equipment case. If your cartridge is designed to mount on the dry,
or bearing, side of the equipment case, skip to section 5.
4.1 Seal chamber face runout (perpendicularity) should be less than 0.001 mm per mm
(0.001" per inch) of indicated diameter. See Figure 7.