Simple Sealing Solution for Pump Shafts

Written by Thomas Yoon

In this issue, we will focus on a much simpler way of sealing a rotating shaft of a pump. It's by using gland packing. This method of sealing has been in use for a very long time, and is still being used today.

There are advantages and disadvantages in using them.

Perhapsrepparttar first and foremost reason for replacing them with mechanical seals is because ofrepparttar 133420 fact that gland packing needs a small amount of leak for cooling purposes.

A person who installs a gland packing must ensure thatrepparttar 133421 latter does not griprepparttar 133422 shaft too tightly. A little dripping must be allowed for. Pumps that contain hazardous liquids should not use them at all.

Pumps that contain gland packing will usually be constructed with a small well and piping atrepparttar 133423 gland to leadrepparttar 133424 leak water away fromrepparttar 133425 pump so as to ensure thatrepparttar 133426 water will not damagerepparttar 133427 bearings, housing or foundation. This can really mess uprepparttar 133428 pump area if there is a choke atrepparttar 133429 drain piping that preventsrepparttar 133430 leaked water from flowing away.

The pump gland nuts may need to be tightened every now and then due to slight loosening after some time of operation. This is because repparttar 133431 nut cannot be tightened hard againstrepparttar 133432 soft packing.

Becauserepparttar 133433 packing gland rubs againstrepparttar 133434 shaft, it will tend to wear downrepparttar 133435 shaft. For this reason, and especially for larger pumps using packing glands, there will usually be a shaft sleeve that can be slipped overrepparttar 133436 shaft. The wear down will then occur only onrepparttar 133437 shaft sleeve. This can be replaced instead ofrepparttar 133438 more expensive shaft.

Easy Way to Troubleshoot Pump Problems

Written by Thomas Yoon

In any problem analysis, we have to specifyrepparttar problem, check whether there is any deviation fromrepparttar 133419 normal condition, identifyrepparttar 133420 possible causes, evaluaterepparttar 133421 possible causes and then confirmrepparttar 133422 true cause.

Pumps or other machinery will give tell tale signs when they are not working properly. An observant pump user will be able to avoid major breakdowns or damage ifrepparttar 133423 problem is corrected early.

In order to solve any pump problem, we need to noticerepparttar 133424 symptoms carefully so as to determinerepparttar 133425 most likely causes. Instruments like pressure gauges are very helpful and should be installed inrepparttar 133426 pumping system.

Very often we do have to rely on our 5 senses to pinpointrepparttar 133427 exact symptom. Normally, pump problems can be classified into Suction Related, System Related, or Mechanical Related. It can also be a combination of these.

Most ofrepparttar 133428 system related problems occur because of design flaw. For example,repparttar 133429 designer may have chosenrepparttar 133430 wrong pump whose characteristic does not matchrepparttar 133431 system requirement. Suction related problems are usually caused by air lock that are due to a variety of reasons...

The effects of mechanical related problems could manifest themselves as suction related problems - air leaks inrepparttar 133432 system, worn out impellers, and mouth rings - butrepparttar 133433 most common symptom isrepparttar 133434 presence of vibration and abnormal noise inrepparttar 133435 equipment.

DiagnoPump, pump troubleshooter has been created for pump users and sellers to help them findrepparttar 133436 solution quickly. Arranged so that repparttar 133437 easiest (and often overlooked) causes are examined first, it could be a very useful tool.

If you are a beginner, you can startrepparttar 133438 troubleshooting fromrepparttar 133439 very first steps. More experienced users may want to start from repparttar 133440 later stages inrepparttar 133441 symptom list. The symptoms have been identified to make it easy to zero in onrepparttar 133442 correct ones. The symptoms have been arranged as:

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