Operating Fundamentals

The Size and Number of Packing Rings The number of packing rings may vary, depending on the objective of the sealing system or the requirements of the rotating equipment. The most common packing arrangement for rotating equipment is illustrated in Figure 2. Three rings of packing are used to seal the process liquid from the packing lubricant. Two rings between the lantern and gland are used to restrict the leakage of the lubricant to the atmosphere. The size of the packing depends on the size of the equipment. Typically, for rotating shafts, the standard square size packings shown in Table 3 may be considered.

2.2.2 CENTRIFUGAL PUMP PACKING TABLE 1 Common materials of construction for packing

Fibers

Metals

Mineral Metal Graphite

Animal Wool Hair Leather

Vegetable Synthetic

Flax

Ramie

Jute

Cotton

Paper

Nylon

Rayon

Survival Treasure

Survival Treasure

This is a collection of 3 guides all about survival. Within this collection you find the following titles: Outdoor Survival Skills, Survival Basics and The Wilderness Survival Guide.

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