The Mechanical Seal and Pump Resource Centre
Mechanical seals are mechanical devices and are an essential part of pumps, rotating equipment and mixing machines. Mechanical Seals are designed to join systems or mechanisms together without leaks.
Mechanical seals prevent leakage by trapping a thin film of liquid between two faces. One face will be stationary and the other rotates with the impeller shaft. The mechanical seal face materials can be selected from carbon, silicon carbide, tungsten carbide, ni-resist, stainless steel, chrome, ceramic or PTFE; dependant on the product being pumped or mixed.
Mechanical-Seals.net is dedicated to all matters relating to mechanical seals and associated products including pumps, O rings, gaskets, gland packings and seal control systems.
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Recent Articles…
Mechanical Seals For Shower Pumps
If you try to purchase a mechanical seal for your power shower pump off the manufacturer they will usually advise you to buy a complete new unit; and with some pumps costing in excess of £500 this is not the cheapest option.
There is another solution! It is possible to buy the mechanical seal itself and the design is similar in every single power shower, it’s also a fraction of the cost of a new pump.
Read the complete article here
Why Do Mechanical Seals Fail?
A mechanical seal can fail or just simply wear out. To discover which one your seals are doing the first place to look is the wearable face and in most instances this will be the face manufactured from some grade of carbon/ graphite (the softer face material).
Since the seal face is the sacrificial part of the mechanical seal, a worn out seal is identified as one that has no carbon nose piece left at the time it started to leak. A failed seal is identified by the fact that it has substantial carbon remaining at the time it started to leak.
Read the complete article here
The Rubber Bellows Mechanical Seal
This type of mechanical seal is available from a number of seal companies and manufactured in a variety of materials, it looks like the following illustration:
You will find this seal used in water pumps and oil pumps, but it is seldom used with chemicals in the process industry. In recent years one manufacturer is mounting the seal on a cartridge sleeve and promoting it as a slurry mechanical seal.
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