Packing seals, Figure 2-9: pump packing seal assembly – Hale Q Series Muscle User Manual
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MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Introduction
Packing Seals
Packing, available on Qmax, Qmid, and Qtwo pumps, forms a watertight seal at the
point where the shaft passes from the inside to the outside of the pump. The packing
material is cooled with pump water. (See Figure 2-9: “Pump Packing Seal Assembly.”)
Figure 2-9: Pump Packing Seal Assembly
The single packing gland is located on the low-pressure side of the pump. The pack-
ing rings are made of a combination of unique materials and have sacrificial zinc sep-
arators to protect the pump shaft from galvanic corrosion.
IMPORTANT!
THE PACKING GLAND SHOULD NOT BE OVER TIGHTENED, OR THE MATERIAL WILL
LOSE ITS BUILT-IN LUBRICATION AND DRY OUT, WHICH MAY DAMAGE THE PUMP.
PACKING MATERIAL MAY ALSO DETERIORATE IF THE PUMP IS KEPT DRY FOR LONG
PERIODS OF TIME (FOR EXAMPLE, TO PREVENT FREEZING). IN THIS CASE, CHARG-
ING THE PUMP WITH WATER AT LEAST ONCE WEEKLY WILL PREVENT DETERIORA-
TION. ALSO SEE SECTION 6 “TROUBLESHOOTING” ON PAGE 93.