Contents: Among others, you will find current data sheets in PDF format available for download here. Mechanical seal technology and selection. The mechanical seal. Mechanical seals have the purpose of preventing leakage of a fluid. (liquid or gaseous) through the clearance between a shaft and the. A mechanical seal consists of 2 principle components. One component is stationary and the other rotates against it to achieve a seal (Figure 2). There are many.

Mechanical Seal Pdf

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focusing on the use of mechanical seals on rotating shaft pumps. Since our subject is dealing with pumps, let's first explore a basic understanding of the need to. a practical context. The chapter describes mechanical shaft seals used in Grundfos pumps as examples of the variety of shaft seal solutions for different. of mechanical seals, support systems and services for pumps and other rotating equipment. These technologically advanced products assist our customers in.

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Once authorized these files may be accessed with or without connection to the Internet. Mechanical Seals for Pumps: Increase your ability to specify seals to improve mechanical seal reliability Mechanical Seals for Pumps: View now.


Be the first to submit a review on this product! Other Items In This Category. Pump Life Cycle Costs: In a properly operating mechanical seal, this thin liquid film, of necessity, leaks to the lowpressure side of the seal, usually outside the pump.

In a single type mechanical seal pump, this liquid is normally the fluid being handled by the pump. There are more complex designs with double, tandem or other arrangements, which place a barrier fluid between seals such that one of the seals is exposed only to the barrier fluid while the inner seal also is exposed to the liquid being pumped.

Such fluids may display no apparent or visible leakage.

Leakage is, however, still taking place. Other liquids will not so readily vapourize and thus may show an accumulation of leaked liquid outside the pump.

Different Types of Mechanical seal

Liquid to be sealed, sealing pressure, face loading, speed, size, sealing face materials, finishes, temperature, viscosity, vapour pressure, normal tolerance variations and other parameters all impact how much apparent leakage will be incurred.

Some seal manufacturers design seals for high face loads that minimize leakage but also shortens the seal life.

Others use lightly loaded faces for long life but these seals are prone to greater leakage figure 2. This is not what anyone wants to hear, but that is the current state-of-the-art in single mechanical seals.

The amount and cosmetic visibility of the leakage will vary from pump to pump. A leakage rate of 10 drops per hour or less per seal is considered an acceptable leak rate for mechanical seal pumps manufactured in our North American or European facilities.

Many if not most pumps will operate well below these limits but up The Online Industrial Exhibition. Open the catalog to page 1.

Open the catalog to page 2.Such fluids may display no apparent or visible leakage. Such contents will be removed immediately.


Illegal contents were not detected at the time of the linking. Increase your ability to specify seals to improve mechanical seal reliability Mechanical Seals for Pumps: Some of these materials can be stainless steel, bronze or hastelloy.

Such contents will be removed immediately.

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